{"id":3114,"date":"2026-10-14T18:44:05","date_gmt":"2026-10-14T18:44:05","guid":{"rendered":"https:\/\/toolstecique.com\/cattle-gestation-calculator\/"},"modified":"2026-10-14T18:44:05","modified_gmt":"2026-10-14T18:44:05","slug":"cattle-gestation-calculator","status":"publish","type":"page","link":"https:\/\/toolstecique.com\/vi\/cattle-gestation-calculator\/","title":{"rendered":"M\u00e1y t\u00ednh th\u1eddi gian mang thai \u1edf b\u00f2"},"content":{"rendered":"

Sinh l\u00fd h\u1ecdc thai k\u1ef3 \u1edf b\u00f2: \u0110\u1ed3ng h\u1ed3 sinh h\u1ecdc 283 ng\u00e0y<\/h2>\n

Trong ng\u00e0nh ch\u0103n nu\u00f4i hi\u1ec7n \u0111\u1ea1i, qu\u1ea3n l\u00fd sinh s\u1ea3n ch\u00ednh x\u00e1c x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi gi\u1eefa c\u00e1c ho\u1ea1t \u0111\u1ed9ng k\u00e9m hi\u1ec7u qu\u1ea3 v\u00e0 c\u00e1c doanh nghi\u1ec7p ch\u0103n nu\u00f4i b\u00f2 th\u1ecbt v\u00e0 b\u00f2 s\u1eefa c\u00f3 l\u1ee3i nhu\u1eadn cao. Tr\u1ecdng t\u00e2m c\u1ee7a hi\u1ec7u qu\u1ea3 sinh s\u1ea3n \u0111\u00e0n gia s\u00fac n\u1eb1m \u1edf th\u1eddi k\u1ef3 mang thai c\u1ee7a b\u00f2 - kho\u1ea3ng th\u1eddi gian sinh h\u1ecdc t\u1eeb khi th\u1ee5 tinh th\u00e0nh c\u00f4ng \u0111\u1ebfn khi sinh ra m\u1ed9t con b\u00ea kh\u1ecfe m\u1ea1nh. Tr\u00ean kh\u1eafp c\u00e1c gi\u1ed1ng b\u00f2 nh\u00e0 (Bos taurus<\/em> V\u00e0 Bos indicus<\/em>), ti\u00eau chu\u1ea9n chung v\u1ec1 th\u1eddi gian mang thai \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 283 ng\u00e0y<\/strong> (kho\u1ea3ng 9,3 th\u00e1ng ho\u1eb7c 40,4 tu\u1ea7n). Tuy nhi\u00ean, ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t con s\u1ed1 c\u1ed1 \u0111\u1ecbnh m\u00e0 kh\u00f4ng t\u00ednh \u0111\u1ebfn c\u00e1c bi\u1ebfn s\u1ed1 sinh h\u1ecdc c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng t\u1eafc ngh\u1ebdn nghi\u00eam tr\u1ecdng trong ho\u1ea1t \u0111\u1ed9ng v\u00e0o m\u00f9a sinh s\u1ea3n.<\/p>\n

S\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p chuy\u00ean bi\u1ec7t m\u00e1y t\u00ednh th\u1eddi gian mang thai c\u1ee7a b\u00f2<\/strong> Ph\u1ea7n m\u1ec1m n\u00e0y cho ph\u00e9p c\u00e1c ch\u1ee7 trang tr\u1ea1i, ng\u01b0\u1eddi qu\u1ea3n l\u00fd \u0111\u00e0n b\u00f2 s\u1eefa v\u00e0 ng\u01b0\u1eddi nh\u00e2n gi\u1ed1ng chuy\u1ec3n \u0111\u1ed5i l\u1ecbch ph\u1ed1i gi\u1ed1ng th\u00e0nh l\u1ecbch tr\u00ecnh qu\u1ea3n l\u00fd \u0111\u00e0n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c v\u00e0 h\u01b0\u1edbng t\u1edbi t\u01b0\u01a1ng lai. Qu\u00e1 tr\u00ecnh th\u1ee5 thai b\u1eaft \u0111\u1ea7u khi m\u1ed9t tinh tr\u00f9ng kh\u1ecfe m\u1ea1nh th\u1ee5 tinh v\u1edbi m\u1ed9t no\u00e3n \u0111\u00e3 r\u1ee5ng tr\u1ee9ng \u1edf ch\u1ed7 n\u1ed1i gi\u1eefa b\u00f3ng v\u00e0 eo \u1ed1ng d\u1eabn tr\u1ee9ng c\u1ee7a b\u00f2 sau khi giao ph\u1ed1i t\u1ef1 nhi\u00ean ho\u1eb7c th\u1ee5 tinh nh\u00e2n t\u1ea1o (AI). \u0110i\u1ec1u n\u00e0y k\u00edch ho\u1ea1t m\u1ed9t chu\u1ed7i ph\u1ea3n \u1ee9ng n\u1ed9i ti\u1ebft ph\u1ee9c t\u1ea1p ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi progesterone, \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p v\u00e0 ti\u1ebft ra b\u1edfi th\u1ec3 v\u00e0ng (CL) tr\u00ean bu\u1ed3ng tr\u1ee9ng. Progesterone duy tr\u00ec s\u1ef1 y\u00ean t\u0129nh c\u1ee7a t\u1eed cung, ng\u0103n ch\u1eb7n c\u00e1c c\u01a1n co th\u1eaft c\u01a1 t\u1eed cung s\u1edbm v\u00e0 k\u00edch th\u00edch ti\u1ebft histotroph ('s\u1eefa t\u1eed cung') \u0111\u1ec3 nu\u00f4i d\u01b0\u1ee1ng ph\u00f4i nang tr\u00f4i n\u1ed5i t\u1ef1 do tr\u01b0\u1edbc khi b\u00e1m v\u00e0o t\u1eed cung.<\/p>\n

N\u1ebfu hi\u1ec7n t\u01b0\u1ee3ng ti\u00eau th\u1ec3 v\u00e0ng x\u1ea3y ra do s\u1ef1 gi\u1ea3i ph\u00f3ng prostaglandin F2-alpha (PGF2\u03b1) t\u1eeb n\u1ed9i m\u1ea1c t\u1eed cung ch\u01b0a \u0111\u01b0\u1ee3c k\u00edch th\u00edch, thai k\u1ef3 s\u1ebd ch\u1ea5m d\u1ee9t ngay l\u1eadp t\u1ee9c. Do \u0111\u00f3, vi\u1ec7c duy tr\u00ec m\u00f4i tr\u01b0\u1eddng kh\u00f4ng c\u0103ng th\u1eb3ng, ch\u1ebf \u0111\u1ed9 dinh d\u01b0\u1ee1ng \u1ed5n \u0111\u1ecbnh v\u00e0 s\u1ef1 tho\u1ea3i m\u00e1i v\u1ec1 nhi\u1ec7t \u0111\u1ed9 trong 30 ng\u00e0y \u0111\u1ea7u sau khi ph\u1ed1i gi\u1ed1ng l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng. B\u1eb1ng c\u00e1ch m\u00f4 ph\u1ecfng chu k\u1ef3 mang thai t\u1eeb ng\u00e0y th\u1ee9 0, ng\u01b0\u1eddi ch\u0103n nu\u00f4i c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n quan tr\u1ecdng, \u0111i\u1ec1u ch\u1ec9nh nhu c\u1ea7u lao \u0111\u1ed9ng \u0111\u1ec3 theo d\u00f5i qu\u00e1 tr\u00ecnh sinh n\u1edf li\u00ean t\u1ee5c v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c can thi\u1ec7p th\u00fa y.<\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 th\u1eddi gian mang thai theo gi\u1ed1ng v\u00e0 t\u00ednh di truy\u1ec1n<\/h2>\n

M\u1eb7c d\u00f9 283 ng\u00e0y \u0111\u1ea1i di\u1ec7n cho m\u1ee9c c\u01a1 b\u1ea3n chung c\u1ee7a ng\u00e0nh, th\u1eddi gian mang thai l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ecbnh l\u01b0\u1ee3ng c\u00f3 t\u00ednh di truy\u1ec1n t\u1eeb trung b\u00ecnh \u0111\u1ebfn cao ($h^2 = 0,35 \u2013 0,45$) v\u00e0 bi\u1ebfn \u0111\u1ed5i m\u1ed9t c\u00e1ch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c gi\u1eefa c\u00e1c gi\u1ed1ng b\u00f2, d\u00f2ng gen v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau. C\u00e1c gi\u1ed1ng b\u00f2 th\u1ecbt c\u1ee7a Anh th\u01b0\u1eddng c\u00f3 th\u1eddi gian mang thai ng\u1eafn h\u01a1n so v\u1edbi c\u00e1c gi\u1ed1ng b\u00f2 \u1edf l\u1ee5c \u0111\u1ecba ch\u00e2u \u00c2u v\u00e0 c\u00e1c gi\u1ed1ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u00f2 Zebu. Nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 th\u00edch nghi ti\u1ebfn h\u00f3a, t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng c\u1ee7a thai nhi v\u00e0 c\u00e1c t\u00edn hi\u1ec7u n\u1ed9i ti\u1ebft \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi tr\u1ee5c h\u1ea1 \u0111\u1ed3i-tuy\u1ebfn y\u00ean-tuy\u1ebfn th\u01b0\u1ee3ng th\u1eadn (HPA) c\u1ee7a thai nhi khi th\u1eddi \u0111i\u1ec3m sinh n\u1edf \u0111\u1ebfn g\u1ea7n.<\/p>\n

Hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t \u0111\u1eb7c tr\u01b0ng c\u1ee7a t\u1eebng gi\u1ed1ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh nh\u1eefng b\u1ea5t ng\u1edd khi sinh n\u1edf v\u00e0 l\u00ean k\u1ebf ho\u1ea1ch cho m\u00f9a ph\u1ed1i gi\u1ed1ng. V\u00ed d\u1ee5, b\u00f2 Aberdeen Angus c\u00f3 th\u1eddi gian mang thai trung b\u00ecnh l\u00e0 281 ng\u00e0y, th\u01b0\u1eddng sinh ra nh\u1eefng con b\u00ea kh\u1ecfe m\u1ea1nh, nh\u1eb9 c\u00e2n, gi\u00fap gi\u1ea3m thi\u1ec3u nguy c\u01a1 kh\u00f3 sinh \u1edf nh\u1eefng con b\u00f2 c\u00e1i sinh l\u1ee9a \u0111\u1ea7u. Ng\u01b0\u1ee3c l\u1ea1i, b\u00f2 Brahman (Bos indicus<\/em>C\u00e1c gi\u1ed1ng b\u00f2 Angus (nh\u01b0 Brangus, Santa Gertrudis v\u00e0 Beefmaster) c\u00f3 th\u1eddi gian l\u01b0u tr\u00fa trong t\u1eed cung trung b\u00ecnh t\u1eeb 290 \u0111\u1ebfn 293 ng\u00e0y\u2014d\u00e0i h\u01a1n Angus h\u01a1n 10 ng\u00e0y. Th\u1eddi gian l\u01b0u tr\u00fa k\u00e9o d\u00e0i trong t\u1eed cung n\u00e0y l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf ti\u1ebfn h\u00f3a h\u1ed7 tr\u1ee3 s\u1ef1 tr\u01b0\u1edfng th\u00e0nh v\u1ec1 h\u1ec7 c\u01a1 x\u01b0\u01a1ng kh\u1edbp trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1edbi v\u00e0 c\u1eadn nhi\u1ec7t \u0111\u1edbi, nh\u01b0ng \u0111\u00f2i h\u1ecfi s\u1ef1 qu\u1ea3n l\u00fd n\u0103ng l\u01b0\u1ee3ng c\u1ea9n th\u1eadn c\u1ee7a b\u00f2 m\u1eb9 trong th\u00e1ng cu\u1ed1i c\u00f9ng.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Gi\u1ed1ng b\u00f2<\/th>\nPh\u00e2n lo\u1ea1i<\/th>\nTh\u1eddi gian mang thai trung b\u00ecnh<\/th>\nPh\u1ea1m vi b\u00ecnh th\u01b0\u1eddng<\/th>\nH\u1ed3 s\u01a1 d\u1ec5 sinh n\u1edf<\/th>\n<\/tr>\n<\/thead>\n
B\u00f2 Angus Aberdeen<\/strong><\/td>\nTh\u1ecbt b\u00f2 Anh<\/td>\n281 ng\u00e0y<\/td>\n274 \u2013 287 ng\u00e0y<\/td>\nCao (C\u00e2n n\u1eb7ng s\u01a1 sinh th\u1ea5p, sinh nhanh)<\/td>\n<\/tr>\n
B\u00f2 Angus \u0111\u1ecf<\/strong><\/td>\nTh\u1ecbt b\u00f2 Anh<\/td>\n282 ng\u00e0y<\/td>\n275 \u2013 288 ng\u00e0y<\/td>\nCao (S\u1ee9c s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi m\u1eb9 v\u01b0\u1ee3t tr\u1ed9i)<\/td>\n<\/tr>\n
Hereford (C\u00f3 s\u1eebng\/Kh\u00f4ng s\u1eebng)<\/strong><\/td>\nTh\u1ecbt b\u00f2 Anh<\/td>\n285 ng\u00e0y<\/td>\n278 \u2013 291 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 hung h\u0103ng t\u1eeb trung b\u00ecnh \u0111\u1ebfn cao (T\u00ednh kh\u00ed hi\u1ec1n l\u00e0nh)<\/td>\n<\/tr>\n
S\u1eebng ng\u1eafn<\/strong><\/td>\nM\u00e1y bay l\u01b0\u1ee1ng d\u1ee5ng c\u1ee7a Anh<\/td>\n283 ng\u00e0y<\/td>\n276 \u2013 290 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 v\u1eeba ph\u1ea3i (Khung x\u01b0\u01a1ng c\u00e2n \u0111\u1ed1i)<\/td>\n<\/tr>\n
Charolais<\/strong><\/td>\nCh\u00e2u \u00c2u l\u1ee5c \u0111\u1ecba<\/td>\n289 ng\u00e0y<\/td>\n282 \u2013 296 ng\u00e0y<\/td>\nTh\u1ec3 h\u00ecnh trung b\u00ecnh (Khung x\u01b0\u01a1ng l\u1edbn, c\u01a1 b\u1eafp ph\u00e1t tri\u1ec3n m\u1ea1nh)<\/td>\n<\/tr>\n
Limousin<\/strong><\/td>\nCh\u00e2u \u00c2u l\u1ee5c \u0111\u1ecba<\/td>\n289 ng\u00e0y<\/td>\n281 \u2013 295 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 v\u1eeba ph\u1ea3i (T\u1ef7 l\u1ec7 th\u1ecbt x\u1ebb cao)<\/td>\n<\/tr>\n
Simmental<\/strong><\/td>\nContinental Dual-Purpose<\/td>\n286 ng\u00e0y<\/td>\n279 \u2013 293 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 v\u1eeba ph\u1ea3i (S\u1ea3n l\u01b0\u1ee3ng s\u1eefa cao)<\/td>\n<\/tr>\n
Gelbvieh<\/strong><\/td>\nCh\u00e2u \u00c2u l\u1ee5c \u0111\u1ecba<\/td>\n285 ng\u00e0y<\/td>\n278 \u2013 292 ng\u00e0y<\/td>\nCao (D\u1eady th\u00ec s\u1edbm, b\u1ea3n n\u0103ng l\u00e0m m\u1eb9 m\u1ea1nh m\u1ebd)<\/td>\n<\/tr>\n
B\u00e0 La M\u00f4n (Zebu)<\/strong><\/td>\nBos Indicus<\/td>\n292 ng\u00e0y<\/td>\n284 \u2013 302 ng\u00e0y<\/td>\nDung t\u00edch khung ch\u1eadu c\u1ee7a m\u1eb9 l\u1edbn, th\u1eddi gian mang thai d\u00e0i<\/td>\n<\/tr>\n
Gi\u1ed1ng b\u00f2 Holstein-Friesian<\/strong><\/td>\nS\u1ea3n xu\u1ea5t s\u1eefa th\u01b0\u01a1ng m\u1ea1i<\/td>\n279 ng\u00e0y<\/td>\n272 \u2013 286 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 v\u1eeba ph\u1ea3i (Nhu c\u1ea7u trao \u0111\u1ed5i ch\u1ea5t cao)<\/td>\n<\/tr>\n
\u00c1o \u0111\u1ea5u<\/strong><\/td>\nS\u1ea3n xu\u1ea5t s\u1eefa th\u01b0\u01a1ng m\u1ea1i<\/td>\n279 ng\u00e0y<\/td>\n273 \u2013 285 ng\u00e0y<\/td>\nR\u1ea5t cao (B\u00ea con nh\u1ecf, sinh th\u01b0\u1eddng kh\u00f4ng c\u1ea7n h\u1ed7 tr\u1ee3)<\/td>\n<\/tr>\n
Th\u1ee5y S\u0129 n\u00e2u<\/strong><\/td>\nS\u1eefa l\u1ee5c \u0111\u1ecba<\/td>\n290 ng\u00e0y<\/td>\n283 \u2013 297 ng\u00e0y<\/td>\nM\u1ee9c \u0111\u1ed9 trung b\u00ecnh (Th\u1eddi gian mang thai k\u00e9o d\u00e0i)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Ngo\u00e0i y\u1ebfu t\u1ed1 di truy\u1ec1n gi\u1ed1ng, c\u00e1c y\u1ebfu t\u1ed1 phi di truy\u1ec1n c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m sinh n\u1edf. B\u00ea \u0111\u1ef1c th\u01b0\u1eddng \u1edf trong t\u1eed cung l\u00e2u h\u01a1n b\u00ea c\u00e1i kho\u1ea3ng 1,0 \u0111\u1ebfn 1,5 ng\u00e0y do l\u01b0\u1ee3ng androgen trong b\u00e0o thai t\u0103ng cao, k\u00edch th\u00edch c\u00e1c y\u1ebfu t\u1ed1 t\u0103ng tr\u01b0\u1edfng. H\u01a1n n\u1eefa, nh\u1eefng con b\u00ea c\u00e1i non sinh l\u1ee9a \u0111\u1ea7u th\u01b0\u1eddng sinh s\u1edbm h\u01a1n 1 \u0111\u1ebfn 2 ng\u00e0y so v\u1edbi nh\u1eefng con b\u00f2 c\u00e1i tr\u01b0\u1edfng th\u00e0nh \u0111\u00e3 sinh nhi\u1ec1u l\u1ee9a do dung t\u00edch t\u1eed cung nh\u1ecf h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng th\u00edch nghi v\u1edbi c\u0103ng th\u1eb3ng sinh l\u00fd.<\/p>\n

\n
\n 283 ng\u00e0y<\/span>
\n Th\u1eddi gian mang thai trung b\u00ecnh<\/span>
\n Chu tr\u00ecnh sinh l\u00fd ti\u00eau chu\u1ea9n \u1edf c\u00e1c gi\u1ed1ng b\u00f2 th\u1ecbt v\u00e0 b\u00f2 s\u1eefa th\u01b0\u01a1ng ph\u1ea9m.<\/span>\n <\/div>\n
\n 276\u2013292<\/span>
\n Ng\u00e0y bi\u1ebfn d\u1ecb gi\u1ed1ng<\/span>
\n S\u1ef1 ph\u00e2n b\u1ed5 th\u1eddi gian mang thai b\u00ecnh th\u01b0\u1eddng gi\u1eefa c\u00e1c gi\u1ed1ng b\u00f2 Anh, ch\u00e2u \u00c2u v\u00e0 Zebu.<\/span>\n <\/div>\n
\n 75%<\/span>
\n S\u1ef1 ph\u00e1t tri\u1ec3n trong tam c\u00e1 nguy\u1ec7t th\u1ee9 3<\/span>
\n T\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng s\u01a1 sinh c\u1ee7a b\u00ea con \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh trong 75 ng\u00e0y cu\u1ed1i c\u1ee7a thai k\u1ef3.<\/span>\n <\/div>\n
\n 60 ng\u00e0y<\/span>
\n Th\u1eddi k\u1ef3 kh\u00f4 s\u1eefa<\/span>
\n Th\u1eddi gian ng\u1eebng ti\u1ebft s\u1eefa b\u1eaft bu\u1ed9c \u0111\u1ec3 t\u00e1i t\u1ea1o m\u00f4 ti\u1ebft s\u1eefa \u1edf tuy\u1ebfn v\u00fa.<\/span>\n <\/div>\n
\n 6\u20138 tu\u1ea7n<\/span>
\n C\u1eeda s\u1ed5 v\u1eafc-xin Scour<\/span>
\n Th\u1eddi \u0111i\u1ec3m ti\u00eam ph\u00f2ng cho m\u1eb9 tr\u01b0\u1edbc khi sinh \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a l\u01b0\u1ee3ng kh\u00e1ng th\u1ec3 IgG trong s\u1eefa non.<\/span>\n <\/div>\n
\n 365 ng\u00e0y<\/span>
\n Kho\u1ea3ng th\u1eddi gian sinh s\u1ea3n m\u1ee5c ti\u00eau<\/span>
\n Chu k\u1ef3 sinh s\u1ea3n l\u00fd t\u01b0\u1edfng h\u00e0ng n\u0103m y\u00eau c\u1ea7u th\u1ee5 thai l\u1ea1i trong v\u00f2ng 82 ng\u00e0y sau sinh.<\/span>\n <\/div>\n<\/div>\n

Ba giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi b\u00f2<\/h2>\n

\u0110\u1ec3 tri\u1ec3n khai c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh dinh d\u01b0\u1ee1ng m\u1ee5c ti\u00eau v\u00e0 c\u00e1c quy tr\u00ecnh s\u1ee9c kh\u1ecfe \u0111\u00e0n v\u1eadt nu\u00f4i, c\u00e1c nh\u00e0 khoa h\u1ecdc ch\u0103n nu\u00f4i chia chu k\u1ef3 mang thai 283 ng\u00e0y th\u00e0nh ba giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n ri\u00eang bi\u1ec7t. M\u1ed7i giai \u0111o\u1ea1n \u0111\u00f2i h\u1ecfi s\u1ef1 gi\u00e1m s\u00e1t qu\u1ea3n l\u00fd, ch\u1ea9n \u0111o\u00e1n th\u00fa y v\u00e0 ph\u00e2n b\u1ed5 dinh d\u01b0\u1ee1ng ri\u00eang bi\u1ec7t.<\/p>\n

Tam c\u00e1 nguy\u1ec7t th\u1ee9 nh\u1ea5t: T\u1eeb ng\u00e0y 1 \u0111\u1ebfn ng\u00e0y 94 (Giai \u0111o\u1ea1n g\u1eafn k\u1ebft ph\u00f4i v\u00e0 h\u00ecnh th\u00e0nh nhau thai)<\/h3>\n

94 ng\u00e0y \u0111\u1ea7u ti\u00ean l\u00e0 giai \u0111o\u1ea1n c\u00f3 nguy c\u01a1 t\u1eed vong ph\u00f4i thai cao nh\u1ea5t. Trong kho\u1ea3ng t\u1eeb ng\u00e0y 1 \u0111\u1ebfn ng\u00e0y 16, ph\u00f4i thai tr\u00f4i n\u1ed5i t\u1ef1 do trong l\u00f2ng t\u1eed cung, ph\u1ee5 thu\u1ed9c v\u00e0o d\u1ecbch ti\u1ebft c\u1ee7a n\u1ed9i m\u1ea1c t\u1eed cung. Kho\u1ea3ng ng\u00e0y 16 \u0111\u1ebfn 17, ph\u00f4i thai ti\u1ebft ra interferon-tau b\u00f2 (bIFN-\u03c4), t\u00edn hi\u1ec7u sinh h\u00f3a nh\u1eadn bi\u1ebft thai k\u1ef3, \u1ee9c ch\u1ebf s\u1ea3n xu\u1ea5t PGF2\u03b1 c\u1ee7a t\u1eed cung, b\u1ea3o t\u1ed3n th\u1ec3 v\u00e0ng.<\/p>\n

S\u1ef1 b\u00e1m d\u00ednh c\u1ee7a ph\u00f4i nang v\u00e0o c\u00e1c nh\u00fa nhau thai c\u1ee7a m\u1eb9 b\u1eaft \u0111\u1ea7u t\u1eeb ng\u00e0y th\u1ee9 18 \u0111\u1ebfn ng\u00e0y th\u1ee9 22, h\u00ecnh th\u00e0nh nhau thai ki\u1ec3u synepitheliochorial bao g\u1ed3m 70 \u0111\u1ebfn 120 \u0111\u01a1n v\u1ecb nhau thai (placentome). \u0110\u1ebfn ng\u00e0y th\u1ee9 30, nh\u1ecbp tim c\u1ee7a ph\u00f4i c\u00f3 th\u1ec3 s\u1edd th\u1ea5y \u0111\u01b0\u1ee3c qua si\u00eau \u00e2m, v\u00e0 \u0111\u1ebfn ng\u00e0y th\u1ee9 45, t\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 c\u01a1 quan ch\u00ednh \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh, ch\u00ednh th\u1ee9c chuy\u1ec3n \u0111\u1ed5i ph\u00f4i thai t\u1eeb giai \u0111o\u1ea1n ph\u00f4i th\u00e0nh thai nhi. Chi\u1ec1u d\u00e0i t\u1eeb \u0111\u1ec9nh \u0111\u1ea7u \u0111\u1ebfn m\u00f4ng \u0111\u1ea1t kho\u1ea3ng 15 cm (6 inch) v\u00e0o ng\u00e0y th\u1ee9 90.<\/p>\n

Tam c\u00e1 nguy\u1ec7t th\u1ee9 hai: T\u1eeb ng\u00e0y 95 \u0111\u1ebfn ng\u00e0y 188 (Qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh c\u00e1c c\u01a1 quan v\u00e0 c\u1ed1t h\u00f3a x\u01b0\u01a1ng)<\/h3>\n

Tam c\u00e1 nguy\u1ec7t th\u1ee9 hai l\u00e0 giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n \u1ed5n \u0111\u1ecbnh, c\u00e2n b\u1eb1ng v\u1ec1 m\u1eb7t gi\u1ea3i ph\u1eabu v\u1edbi t\u1ef7 l\u1ec7 s\u1ea3y thai t\u1ef1 nhi\u00ean th\u1ea5p. B\u1ed9 x\u01b0\u01a1ng c\u1ee7a thai nhi tr\u1ea3i qua qu\u00e1 tr\u00ecnh v\u00f4i h\u00f3a m\u1ea1nh m\u1ebd, \u0111\u00f2i h\u1ecfi ngu\u1ed3n d\u1ef1 tr\u1eef ph\u1ed1t pho, canxi v\u00e0 kho\u00e1ng ch\u1ea5t vi l\u01b0\u1ee3ng \u0111\u1ea7y \u0111\u1ee7 t\u1eeb ng\u01b0\u1eddi m\u1eb9. C\u00e1c nang l\u00f4ng b\u1eaft \u0111\u1ea7u m\u1ecdc tr\u00ean m\u00f5m v\u00e0 l\u00f4ng m\u00e0y v\u00e0o kho\u1ea3ng ng\u00e0y th\u1ee9 110, v\u00e0 m\u00f3ng gu\u1ed1c b\u1eaft \u0111\u1ea7u c\u1ee9ng l\u1ea1i v\u00e0o ng\u00e0y th\u1ee9 150.<\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c trang tr\u1ea1i ch\u0103n nu\u00f4i b\u00f2 s\u1eefa th\u01b0\u01a1ng m\u1ea1i, k\u1ebft th\u00fac tam c\u00e1 nguy\u1ec7t th\u1ee9 hai \u0111\u00e1nh d\u1ea5u giai \u0111o\u1ea1n chuy\u1ec3n ti\u1ebfp quan tr\u1ecdng sang th\u1eddi k\u1ef3 kh\u00f4 s\u1eefa. B\u00f2 s\u1eefa \u0111ang trong giai \u0111o\u1ea1n s\u1ea3n xu\u1ea5t nhi\u1ec1u s\u1eefa c\u1ea7n \u0111\u01b0\u1ee3c cho ng\u1eebng ti\u1ebft s\u1eefa m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng 60 ng\u00e0y tr\u01b0\u1edbc ng\u00e0y d\u1ef1 ki\u1ebfn \u200b\u200bsinh \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho s\u1ef1 t\u00e1i t\u1ea1o m\u00f4 v\u00fa, s\u1ef1 co h\u1ed3i v\u00e0 s\u1ef1 t\u00edch l\u0169y kh\u00e1ng th\u1ec3 m\u1ea1nh m\u1ebd trong s\u1eefa non.<\/p>\n

Tam c\u00e1 nguy\u1ec7t th\u1ee9 ba: T\u1eeb ng\u00e0y 189 \u0111\u1ebfn ng\u00e0y 283 (Giai \u0111o\u1ea1n t\u0103ng tr\u01b0\u1edfng theo c\u1ea5p s\u1ed1 nh\u00e2n c\u1ee7a thai nhi)<\/h3>\n

Ba th\u00e1ng cu\u1ed1i thai k\u1ef3 l\u00e0 giai \u0111o\u1ea1n \u0111\u00f2i h\u1ecfi nhi\u1ec1u s\u1ee9c l\u1ef1c nh\u1ea5t v\u1ec1 m\u1eb7t sinh l\u00fd trong chu k\u1ef3 s\u1ea3n xu\u1ea5t c\u1ee7a b\u00f2. 75% t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng s\u01a1 sinh c\u1ee7a b\u00ea<\/strong> Ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111\u01b0\u1ee3c t\u00edch t\u1ee5 trong 75 \u0111\u1ebfn 80 ng\u00e0y cu\u1ed1i c\u00f9ng n\u00e0y. Kh\u1ed1i l\u01b0\u1ee3ng thai nhi t\u0103ng nhanh t\u1eeb kho\u1ea3ng 10 \u0111\u1ebfn 12 kg (22 \u0111\u1ebfn 26 lbs) v\u00e0o ng\u00e0y th\u1ee9 200 l\u00ean 35 \u0111\u1ebfn 45 kg (77 \u0111\u1ebfn 100 lbs) khi \u0111\u1ee7 th\u00e1ng.<\/p>\n

\u0110\u1ed3ng th\u1eddi, th\u1ec3 t\u00edch t\u1eed cung t\u0103ng l\u00ean t\u1ea1o \u00e1p l\u1ef1c c\u01a1 h\u1ecdc l\u00ean d\u1ea1 d\u00e0y, l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 ch\u1ea5t kh\u00f4 (DMI) c\u1ee7a m\u1eb9 t\u1eeb 15% \u0111\u1ebfn 20% \u0111\u00fang v\u00e0o th\u1eddi \u0111i\u1ec3m nhu c\u1ea7u dinh d\u01b0\u1ee1ng cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi v\u00e0 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh ru\u1ed9t non \u0111\u1ea1t \u0111\u1ec9nh \u0111i\u1ec3m h\u00e0ng n\u0103m. Vi\u1ec7c kh\u00f4ng t\u0103ng m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng trong kh\u1ea9u ph\u1ea7n \u0103n trong giai \u0111o\u1ea1n n\u00e0y s\u1ebd k\u00edch ho\u1ea1t qu\u00e1 tr\u00ecnh huy \u0111\u1ed9ng ch\u1ea5t b\u00e9o c\u1ee7a m\u1eb9, l\u00e0m t\u0103ng n\u1ed3ng \u0111\u1ed9 axit b\u00e9o kh\u00f4ng este h\u00f3a (NEFA) v\u00e0 khi\u1ebfn b\u00f2 d\u1ec5 b\u1ecb nhi\u1ec5m ceton, s\u00f3t nhau thai v\u00e0 v\u00f4 sinh k\u00e9o d\u00e0i sau sinh.<\/p>\n

Ch\u1ea9n \u0111o\u00e1n mang thai \u1edf \u0111\u1ed9ng v\u1eadt: Si\u00eau \u00e2m, s\u1edd n\u1eafn v\u00e0 x\u00e9t nghi\u1ec7m PAG<\/h2>\n

M\u1ed9t l\u1ee3i th\u1ebf c\u01a1 b\u1ea3n c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh x\u00e1c m\u00e1y t\u00ednh th\u1eddi gian mang thai c\u1ee7a b\u00f2<\/strong> Vi\u1ec7c thi\u1ebft l\u1eadp l\u1ecbch tr\u00ecnh c\u1ee5 th\u1ec3 cho vi\u1ec7c x\u00e1c nh\u1eadn mang thai b\u1edfi b\u00e1c s\u0129 th\u00fa y l\u00e0 r\u1ea5t quan tr\u1ecdng. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh s\u1edbm nh\u1eefng con c\u00e1i kh\u00f4ng mang thai cho ph\u00e9p t\u00e1i \u0111\u1ed3ng b\u1ed9 h\u00f3a chu k\u1ef3 sinh s\u1ea3n ho\u1eb7c lo\u1ea1i b\u1ecf ngay l\u1eadp t\u1ee9c, ng\u0103n ng\u1eeba t\u1ed5n th\u1ea5t kinh t\u1ebf nghi\u00eam tr\u1ecdng do ph\u1ea3i nu\u00f4i nh\u1eefng con b\u00f2 kh\u00f4ng sinh s\u1ea3n qua m\u00f9a \u0111\u00f4ng.<\/p>\n

\n

Quy t\u1eafc v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ea9n \u0111o\u00e1n: Ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi tu\u1ed5i thai<\/h3>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n ph\u00f9 h\u1ee3p ho\u00e0n to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o tu\u1ed5i thai. Si\u00eau \u00e2m qua tr\u1ef1c tr\u00e0ng cho \u0111\u1ed9 ch\u00ednh x\u00e1c cao trong kho\u1ea3ng t\u1eeb ng\u00e0y th\u1ee9 28 \u0111\u1ebfn ng\u00e0y th\u1ee9 35; s\u1edd n\u1eafn qua tr\u1ef1c tr\u00e0ng cho k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t t\u1eeb \u200b\u200bng\u00e0y th\u1ee9 45 tr\u1edf \u0111i; v\u00e0 x\u00e9t nghi\u1ec7m m\u00e1u ho\u1eb7c s\u1eefa t\u00ecm glycoprotein li\u00ean quan \u0111\u1ebfn thai k\u1ef3 (PAG) cung c\u1ea5p x\u00e1c nh\u1eadn \u0111\u00e1ng tin c\u1eady t\u1eeb ng\u00e0y th\u1ee9 28 sau khi ph\u1ed1i gi\u1ed1ng, v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u00e3 \u00edt nh\u1ea5t 70 \u0111\u1ebfn 90 ng\u00e0y tr\u00f4i qua k\u1ec3 t\u1eeb l\u1ea7n sinh tr\u01b0\u1edbc.<\/p>\n<\/div>\n

Qu\u1ea3n l\u00fd sinh s\u1ea3n hi\u1ec7n \u0111\u1ea1i d\u1ef1a tr\u00ean ba ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh:<\/p>\n

    \n
  • Si\u00eau \u00e2m qua tr\u1ef1c tr\u00e0ng (Ng\u00e0y 28 \u2013 35):<\/strong> B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ea7u d\u00f2 tr\u1ef1c tr\u00e0ng m\u1ea3ng tuy\u1ebfn t\u00ednh 5,0 \u0111\u1ebfn 7,5 MHz, c\u00e1c b\u00e1c s\u0129 th\u00fa y c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n t\u00fai thai v\u00e0 nh\u1ecbp tim ph\u00f4i thai s\u1ed1ng \u0111\u01b0\u1ee3c s\u1edbm nh\u1ea5t l\u00e0 t\u1eeb 26 \u0111\u1ebfn 28 ng\u00e0y sau khi ph\u1ed1i gi\u1ed1ng. Quan tr\u1ecdng h\u01a1n, t\u1eeb ng\u00e0y th\u1ee9 55 \u0111\u1ebfn ng\u00e0y th\u1ee9 75, c\u00e1c b\u00e1c s\u0129 th\u00fa y gi\u00e0u kinh nghi\u1ec7m c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u1edbi t\u00ednh c\u1ee7a thai nhi b\u1eb1ng c\u00e1ch quan s\u00e1t s\u1ef1 di chuy\u1ec3n v\u1ec1 m\u1eb7t gi\u1ea3i ph\u1eabu c\u1ee7a c\u1ee7 sinh d\u1ee5c (c\u1ee7 n\u00e0y d\u1ecbch chuy\u1ec3n v\u1ec1 ph\u00eda r\u1ed1n \u1edf thai nhi nam v\u00e0 v\u1ec1 ph\u00eda g\u1ed1c \u0111u\u00f4i \u1edf thai nhi n\u1eef).<\/li>\n
  • Kh\u00e1m tr\u1ef1c tr\u00e0ng (Ng\u00e0y 45 \u2013 120+):<\/strong> Ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n truy\u1ec1n th\u1ed1ng \u0111\u1ec3 ki\u1ec3m tra thai trong \u0111\u00e0n gia s\u00fac. Kh\u00e1m s\u1edd n\u1eafn x\u00e1c \u0111\u1ecbnh b\u1ed1n d\u1ea5u hi\u1ec7u ch\u1eafc ch\u1eafn c\u1ee7a thai k\u1ef3: s\u1edd th\u1ea5y m\u00e0ng \u0111\u1ec7m ni\u1ec7u nang (ng\u00e0y 35\u201340), s\u1edd th\u1ea5y t\u00fai \u1ed1i (ng\u00e0y 45\u201360), nhau thai (ng\u00e0y 75 tr\u1edf l\u00ean), v\u00e0 rung \u0111\u1ed9ng r\u00f5 r\u1ec7t c\u1ee7a \u0111\u1ed9ng m\u1ea1ch t\u1eed cung\u2014m\u1ed9t s\u1ef1 rung \u0111\u1ed9ng m\u1ea1ch \u0111\u1eadp c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c \u1edf \u0111\u1ed9ng m\u1ea1ch t\u1eed cung gi\u1eefa cung c\u1ea5p m\u00e1u cho s\u1eebng t\u1eed cung mang thai (ng\u00e0y 90\u2013120 tr\u1edf l\u00ean).<\/li>\n
  • X\u00e9t nghi\u1ec7m Glycoprotein li\u00ean quan \u0111\u1ebfn thai k\u1ef3 (PAG) (Ng\u00e0y 28 tr\u1edf l\u00ean):<\/strong> PAG l\u00e0 c\u00e1c glycoprotein chuy\u00ean bi\u1ec7t \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p b\u1edfi c\u00e1c t\u1ebf b\u00e0o kh\u1ed5ng l\u1ed3 hai nh\u00e2n trong l\u1edbp t\u1ebf b\u00e0o nu\u00f4i d\u01b0\u1ee1ng ph\u00f4i thai. X\u00e9t nghi\u1ec7m huy\u1ebft thanh (ELISA) ho\u1eb7c s\u1eefa gi\u00fap x\u00e1c nh\u1eadn ch\u00ednh x\u00e1c t\u00ecnh tr\u1ea1ng mang thai m\u00e0 kh\u00f4ng c\u1ea7n th\u0103m kh\u00e1m tr\u1ef1c tr\u00e0ng th\u1ee7 c\u00f4ng, do \u0111\u00f3 \u0111\u00e2y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn kh\u1ea3 thi cho c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp c\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi b\u00e1c s\u0129 th\u00fa y.<\/li>\n<\/ul>\n
    \n \"M\u00e1y
    L\u1eadp k\u1ebf ho\u1ea1ch sinh s\u1ea3n v\u00e0 qu\u1ea3n l\u00fd th\u1eddi gian mang thai \u1edf b\u00f2 v\u1edbi C\u00f4ng c\u1ee5 t\u00ednh to\u00e1n th\u1eddi gian mang thai cho b\u00f2.<\/figcaption><\/figure>\n

    Qu\u1ea3n l\u00fd dinh d\u01b0\u1ee1ng trong su\u1ed1t thai k\u1ef3: Ng\u0103n ng\u1eeba kh\u00f3 sinh v\u00e0 h\u1ed9i ch\u1ee9ng b\u00f2 g\u1ea7y<\/h2>\n

    Ph\u00e2n b\u1ed5 dinh d\u01b0\u1ee1ng trong su\u1ed1t th\u1eddi k\u1ef3 mang thai \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tr\u1ecdng l\u01b0\u1ee3ng s\u01a1 sinh c\u1ee7a b\u00ea, s\u1ee9c s\u1ed1ng s\u01a1 sinh, s\u1ea3n l\u01b0\u1ee3ng s\u1eefa c\u1ee7a m\u1eb9 v\u00e0 kh\u1ea3 n\u0103ng sinh s\u1ea3n th\u00e0nh c\u00f4ng sau n\u00e0y. C\u00e1c trang tr\u1ea1i th\u01b0\u1eddng m\u1eafc ph\u1ea3i m\u1ed9t trong hai th\u00e1i c\u1ef1c v\u1ec1 dinh d\u01b0\u1ee1ng: cho \u0103n thi\u1ebfu trong ba th\u00e1ng cu\u1ed1i thai k\u1ef3, d\u1eabn \u0111\u1ebfn \"H\u1ed9i ch\u1ee9ng b\u00f2 g\u1ea7y\" v\u00e0 sinh b\u00ea y\u1ebfu; ho\u1eb7c cho \u0103n qu\u00e1 nhi\u1ec1u trong giai \u0111o\u1ea1n cu\u1ed1i thai k\u1ef3, g\u00e2y t\u00edch t\u1ee5 m\u1ee1 n\u1ed9i t\u1ea1ng qu\u00e1 m\u1ee9c trong \u0111\u01b0\u1eddng sinh c\u1ee7a m\u1eb9 v\u00e0 d\u1eabn \u0111\u1ebfn kh\u00f3 sinh nghi\u00eam tr\u1ecdng.<\/p>\n

    C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i theo d\u00f5i \u0110i\u1ec3m Th\u1ec3 tr\u1ea1ng (BCS) theo thang \u0111i\u1ec3m ti\u00eau chu\u1ea9n t\u1eeb 1 \u0111\u1ebfn 9 \u0111\u1ed1i v\u1edbi b\u00f2 th\u1ecbt (ho\u1eb7c t\u1eeb 1 \u0111\u1ebfn 5 \u0111\u1ed1i v\u1edbi b\u00f2 s\u1eefa). B\u00f2 th\u1ecbt n\u00ean sinh s\u1ea3n \u1edf th\u1eddi \u0111i\u1ec3m m\u1ee5c ti\u00eau. BCS t\u1eeb 5,5 \u0111\u1ebfn 6,0<\/strong>trong khi \u0111\u00f3, b\u00f2 c\u00e1i t\u01a1 sinh l\u1ee9a \u0111\u1ea7u ti\u00ean c\u1ea7n m\u1ed9t BCS t\u1eeb 6.0 \u0111\u1ebfn 6.5<\/strong> Cung c\u1ea5p ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef cho s\u1ef1 ph\u00e1t tri\u1ec3n x\u01b0\u01a1ng li\u00ean t\u1ee5c song song v\u1edbi qu\u00e1 tr\u00ecnh ti\u1ebft s\u1eefa.<\/p>\n

    \n\n\n\n\n\n\n\n\n
    Giai \u0111o\u1ea1n thai k\u1ef3<\/th>\nBCS m\u1ee5c ti\u00eau (1\u20139)<\/th>\nProtein th\u00f4 (CP %)<\/th>\nT\u1ed5ng ch\u1ea5t dinh d\u01b0\u1ee1ng d\u1ec5 ti\u00eau h\u00f3a (TDN %)<\/th>\nCh\u1ea5t kh\u00f4 h\u00e0ng ng\u00e0y (% tr\u1ecdng l\u01b0\u1ee3ng c\u01a1 th\u1ec3)<\/th>\n<\/tr>\n<\/thead>\n
    Giai \u0111o\u1ea1n \u0111\u1ea7u thai k\u1ef3 (Tam c\u00e1 nguy\u1ec7t th\u1ee9 nh\u1ea5t)<\/strong><\/td>\n5.0 \u2013 5.5<\/td>\n7,0% \u2013 8,0%<\/td>\n50% \u2013 52%<\/td>\n2,0% \u2013 2,2%<\/td>\n<\/tr>\n
    Gi\u1eefa thai k\u1ef3 (Tam c\u00e1 nguy\u1ec7t th\u1ee9 2)<\/strong><\/td>\n5.0 \u2013 5.5<\/td>\n7,5% \u2013 8,5%<\/td>\n52% \u2013 55%<\/td>\n2,0% \u2013 2,2%<\/td>\n<\/tr>\n
    Giai \u0111o\u1ea1n cu\u1ed1i thai k\u1ef3 (Tam c\u00e1 nguy\u1ec7t th\u1ee9 3)<\/strong><\/td>\n5,5 \u2013 6,0<\/td>\n9,5% \u2013 11,0%<\/td>\n58% \u2013 62%<\/td>\n1,8% \u2013 2,0% (N\u00e9n d\u1ea1 d\u00e0y)<\/td>\n<\/tr>\n
    Giai \u0111o\u1ea1n \u0111\u1ea7u ti\u1ebft s\u1eefa (sau khi sinh b\u00ea)<\/strong><\/td>\n5.0 \u2013 5.5<\/td>\n11,5% \u2013 13,0%<\/td>\n64% \u2013 68%<\/td>\n2,5% \u2013 3,0%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Nghi\u00ean c\u1ee9u v\u1ec1 l\u1eadp tr\u00ecnh b\u00e0o thai t\u1eeb c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh khuy\u1ebfn n\u00f4ng c\u1ee7a tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng vi\u1ec7c h\u1ea1n ch\u1ebf dinh d\u01b0\u1ee1ng cho m\u1eb9 trong ba th\u00e1ng gi\u1eefa v\u00e0 ba th\u00e1ng cu\u1ed1i thai k\u1ef3 s\u1ebd g\u00e2y t\u1ed5n h\u1ea1i kh\u00f4ng th\u1ec3 ph\u1ee5c h\u1ed3i \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u00e1c c\u01a1 quan c\u1ee7a thai nhi, s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i c\u01a1 (s\u1ef1 h\u00ecnh th\u00e0nh c\u01a1) v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n t\u1ebf b\u00e0o m\u1ee1 \u1edf con c\u00e1i \u0111\u01b0\u1ee3c b\u00e1n ra th\u1ecb tr\u01b0\u1eddng. H\u01a1n n\u1eefa, b\u00ea c\u00e1i sinh ra t\u1eeb nh\u1eefng b\u00e0 m\u1eb9 thi\u1ebfu dinh d\u01b0\u1ee1ng c\u00f3 l\u01b0\u1ee3ng d\u1ef1 tr\u1eef nang tr\u1ee9ng bu\u1ed3ng tr\u1ee9ng th\u1ea5p, l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd sinh s\u1ea3n.<\/p>\n

    S\u1ee9c kh\u1ecfe \u0111\u00e0n gia s\u00fac tr\u01b0\u1edbc khi sinh: Ti\u00eam ph\u00f2ng ti\u00eau ch\u1ea3y v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1eefa non.<\/h2>\n

    S\u1ef1 s\u1ed1ng s\u00f3t c\u1ee7a b\u00ea s\u01a1 sinh ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o s\u1ef1 truy\u1ec1n mi\u1ec5n d\u1ecbch th\u1ee5 \u0111\u1ed9ng t\u1eeb m\u1eb9. Kh\u00f4ng gi\u1ed1ng nh\u01b0 con ng\u01b0\u1eddi, gia s\u00fac c\u00f3 nhau thai synepitheliochorial, ng\u0103n ch\u1eb7n ho\u00e0n to\u00e0n s\u1ef1 truy\u1ec1n qua nhau thai c\u1ee7a c\u00e1c globulin mi\u1ec5n d\u1ecbch (kh\u00e1ng th\u1ec3) t\u1eeb tu\u1ea7n ho\u00e0n m\u00e1u c\u1ee7a m\u1eb9 sang thai nhi. B\u00ea con sinh ra v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng c\u00f3 globulin mi\u1ec5n d\u1ecbch, t\u1ee9c l\u00e0 kh\u00f4ng c\u00f3 kh\u00e1ng th\u1ec3 n\u00e0o l\u01b0u h\u00e0nh \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh t\u1eeb m\u00f4i tr\u01b0\u1eddng.<\/p>\n

    \n

    Nguy\u00ean t\u1eafc v\u00e0ng c\u1ee7a s\u1eefa non: S\u1ed1 l\u01b0\u1ee3ng, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 t\u1ed1c \u0111\u1ed9.<\/h3>\n

    B\u00ea s\u01a1 sinh c\u1ea7n ti\u00eau th\u1ee5 t\u1eeb 10% \u0111\u1ebfn 12% tr\u1ecdng l\u01b0\u1ee3ng c\u01a1 th\u1ec3 b\u1eb1ng s\u1eefa non ch\u1ea5t l\u01b0\u1ee3ng cao (v\u1edbi h\u00e0m l\u01b0\u1ee3ng IgG v\u01b0\u1ee3t qu\u00e1 50 g\/L) trong v\u00f2ng 4 \u0111\u1ebfn 6 gi\u1edd \u0111\u1ea7u \u0111\u1eddi. Qu\u00e1 tr\u00ecnh h\u1ea5p th\u1ee5 c\u00e1c \u0111\u1ea1i ph\u00e2n t\u1eed \u1edf ru\u1ed9t di\u1ec5n ra d\u1ea7n d\u1ea7n v\u00e0 ng\u1eebng ho\u00e0n to\u00e0n sau 24 gi\u1edd sau sinh.<\/p>\n<\/div>\n

    \u0110\u1ec3 t\u1ed1i \u0111a h\u00f3a n\u1ed3ng \u0111\u1ed9 immunoglobulin G (IgG) trong s\u1eefa non, ph\u00e1c \u0111\u1ed3 ti\u00eam ph\u00f2ng tr\u01b0\u1edbc khi sinh ph\u1ea3i \u0111\u01b0\u1ee3c l\u00ean l\u1ecbch ch\u00ednh x\u00e1c d\u1ef1a tr\u00ean ng\u00e0y d\u1ef1 sinh do b\u1ea1n l\u1eadp ra. m\u00e1y t\u00ednh th\u1eddi gian mang thai c\u1ee7a b\u00f2<\/strong>:<\/p>\n

      \n
    • V\u1eafc xin ph\u00f2ng ti\u00eau ch\u1ea3y \u1edf b\u00f2 m\u1eb9 (6 \u0111\u1ebfn 8 tu\u1ea7n tr\u01b0\u1edbc khi sinh):<\/strong> Ti\u00eam v\u1eafc-xin b\u1ea5t ho\u1ea1t ch\u1ed1ng l\u1ea1i Rotavirus \u1edf b\u00f2, Coronavirus \u1edf b\u00f2, Vi khu\u1ea9n Escherichia coli<\/em> (kh\u00e1ng nguy\u00ean pili K99), v\u00e0 Clostridium perfringens<\/em> Kh\u00e1ng th\u1ec3 lo\u1ea1i C v\u00e0 D k\u00edch th\u00edch s\u1ef1 t\u0103ng sinh t\u1ebf b\u00e0o B c\u1ee7a m\u1eb9. B\u00f2 t\u1eadp trung c\u00e1c kh\u00e1ng th\u1ec3 b\u1ea3o v\u1ec7 n\u00e0y v\u00e0o d\u1ecbch ti\u1ebft tuy\u1ebfn v\u00fa trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh nang tr\u1ee9ng (x\u1ea3y ra t\u1eeb 4 \u0111\u1ebfn 5 tu\u1ea7n tr\u01b0\u1edbc khi sinh).<\/li>\n
    • Ti\u00eam nh\u1eafc l\u1ea1i cho b\u00f2 c\u00e1i t\u01a1 (2 \u0111\u1ebfn 4 tu\u1ea7n sau):<\/strong> B\u00f2 c\u00e1i t\u01a1 sinh l\u1ee9a \u0111\u1ea7u ch\u01b0a t\u1eebng ti\u1ebfp x\u00fac v\u1edbi kh\u00e1ng nguy\u00ean tr\u01b0\u1edbc \u0111\u00f3 c\u1ea7n ti\u00eam hai li\u1ec1u v\u1eafc xin c\u01a1 b\u1ea3n ban \u0111\u1ea7u. Vi\u1ec7c ti\u00eam li\u1ec1u t\u0103ng c\u01b0\u1eddng v\u00e0o ng\u00e0y th\u1ee9 240 \u0111\u1ea3m b\u1ea3o n\u1ed3ng \u0111\u1ed9 kh\u00e1ng th\u1ec3 \u0111\u1ea1t \u0111\u1ec9nh tr\u00f9ng v\u1edbi th\u1eddi \u0111i\u1ec3m t\u00edch l\u0169y s\u1eefa non.<\/li>\n
    • \u0110i\u1ec1u tr\u1ecb cho b\u00f2 c\u1ea1n s\u1eefa & Ch\u1ea5t b\u1ecbt k\u00edn n\u00fam v\u00fa b\u00ean trong:<\/strong> Trong c\u00e1c \u0111\u00e0n b\u00f2 s\u1eefa, vi\u1ec7c truy\u1ec1n kh\u00e1ng sinh t\u00e1c d\u1ee5ng k\u00e9o d\u00e0i v\u00e0o tuy\u1ebfn v\u00fa c\u00f9ng v\u1edbi ch\u1ea5t b\u1ecbt k\u00edn n\u00fam v\u00fa bismuth subnitrate khi ng\u1eebng cho s\u1eefa gi\u00fap ng\u0103n ng\u1eeba vi\u00eam v\u00fa c\u1eadn l\u00e2m s\u00e0ng v\u00e0 nhi\u1ec5m tr\u00f9ng coliform t\u1eeb m\u00f4i tr\u01b0\u1eddng trong giai \u0111o\u1ea1n kh\u00f4 h\u1ea1n d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng.<\/li>\n
    • V\u1ec7 sinh khu v\u1ef1c s\u1ea3n ph\u1ee5:<\/strong> Di chuy\u1ec3n nh\u1eefng con b\u00f2 s\u1eafp sinh (trong v\u00f2ng 10 \u0111\u1ebfn 14 ng\u00e0y n\u1eefa l\u00e0 \u0111\u1ebfn ng\u00e0y d\u1ef1 sinh) \u0111\u1ebfn nh\u1eefng \u0111\u1ed3ng c\u1ecf ch\u0103n th\u1ea3 c\u00f3 h\u1ec7 th\u1ed1ng tho\u00e1t n\u01b0\u1edbc t\u1ed1t v\u00e0 ph\u1ee7 c\u1ecf ho\u1eb7c c\u00e1c chu\u1ed3ng \u0111\u1ebb ri\u00eang bi\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eed tr\u00f9ng v\u00e0 tr\u1ea3i l\u1edbp l\u00f3t m\u1edbi. M\u1eadt \u0111\u1ed9 m\u1ea7m b\u1ec7nh cao trong c\u00e1c khu v\u1ef1c b\u1ecb \u00f4 nhi\u1ec5m s\u1ebd khi\u1ebfn b\u00f2 con m\u1edbi sinh d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng tr\u01b0\u1edbc khi qu\u00e1 tr\u00ecnh l\u00e2y truy\u1ec1n th\u1ee5 \u0111\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp.<\/li>\n<\/ul>\n

      Ba giai \u0111o\u1ea1n sinh n\u1edf (\u0111\u1ebb b\u00ea) v\u00e0 can thi\u1ec7p khi kh\u00f3 sinh<\/h2>\n

      Qu\u00e1 tr\u00ecnh sinh n\u1edf \u0111\u01b0\u1ee3c kh\u1edfi ph\u00e1t b\u1edfi thai nhi \u0111\u00e3 tr\u01b0\u1edfng th\u00e0nh, ch\u1ee9 kh\u00f4ng ph\u1ea3i ng\u01b0\u1eddi m\u1eb9. Khi v\u00f9ng d\u01b0\u1edbi \u0111\u1ed3i c\u1ee7a thai nhi \u0111\u1ea1t \u0111\u1ebfn \u0111\u1ed9 tr\u01b0\u1edfng th\u00e0nh v\u1ec1 m\u1eb7t ph\u00e1t tri\u1ec3n, c\u0103ng th\u1eb3ng s\u1ebd k\u00edch ho\u1ea1t s\u1ef1 ti\u1ebft hormone gi\u1ea3i ph\u00f3ng corticotropin (CRH), th\u00fac \u0111\u1ea9y s\u1ef1 gi\u1ea3i ph\u00f3ng cortisol t\u1eeb tuy\u1ebfn th\u01b0\u1ee3ng th\u1eadn c\u1ee7a thai nhi. Cortisol c\u1ee7a thai nhi k\u00edch ho\u1ea1t c\u00e1c enzyme \u1edf nhau thai chuy\u1ec3n h\u00f3a progesterone th\u00e0nh estrogen. N\u1ed3ng \u0111\u1ed9 estrogen t\u0103ng cao k\u00edch th\u00edch s\u1ef1 gi\u1ea3i ph\u00f3ng PGF2\u03b1 \u1edf n\u1ed9i m\u1ea1c t\u1eed cung, l\u00e0m tan th\u1ec3 v\u00e0ng, l\u00e0m gi\u00e3n c\u00e1c d\u00e2y ch\u1eb1ng v\u00f9ng ch\u1eadu, l\u00e0m m\u1ec1m c\u1ed5 t\u1eed cung v\u00e0 k\u00edch ho\u1ea1t c\u00e1c th\u1ee5 th\u1ec3 oxytocin \u1edf t\u1eed cung.<\/p>\n

      Qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 \u0111\u00f2i h\u1ecfi ph\u1ea3i nh\u1eadn bi\u1ebft ba giai \u0111o\u1ea1n kh\u00e1c nhau c\u1ee7a qu\u00e1 tr\u00ecnh chuy\u1ec3n d\u1ea1 b\u00ecnh th\u01b0\u1eddng v\u00e0 bi\u1ebft khi n\u00e0o c\u1ea7n can thi\u1ec7p v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd v\u00e0 \u0111\u1ea1o \u0111\u1ee9c:<\/p>\n

      Giai \u0111o\u1ea1n 1: Gi\u00e3n n\u1edf c\u1ed5 t\u1eed cung v\u00e0 co th\u1eaft t\u1eed cung (2 \u0111\u1ebfn 6 gi\u1edd)<\/h3>\n

      B\u00f2 c\u00e1i t\u00e1ch kh\u1ecfi \u0111\u00e0n, bi\u1ec3u hi\u1ec7n b\u1ed3n ch\u1ed3n, v\u1eaby \u0111u\u00f4i, th\u01b0\u1eddng xuy\u00ean n\u1eb1m xu\u1ed1ng r\u1ed3i \u0111\u1ee9ng l\u00ean, v\u00e0 ti\u1ebft d\u1ecbch nh\u1ea7y trong su\u1ed1t t\u1eeb \u00e2m \u0111\u1ea1o. C\u00e1c c\u01a1n co th\u1eaft \u0111\u1ea9y t\u00fai m\u00e0ng \u0111\u1ec7m ch\u1ee9a \u0111\u1ea7y d\u1ecbch (t\u00fai n\u01b0\u1edbc) v\u00e0o c\u1ed5 t\u1eed cung, ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh gi\u00e3n n\u1edf c\u01a1 h\u1ecdc. \u1ede b\u00f2 t\u01a1, giai \u0111o\u1ea1n 1 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i \u0111\u1ebfn 8 gi\u1edd.<\/p>\n

      Giai \u0111o\u1ea1n 2: Sinh v\u00e0 t\u1ed1ng xu\u1ea5t thai nhi (30 \u0111\u1ebfn 60 ph\u00fat)<\/h3>\n

      Giai \u0111o\u1ea1n 2 b\u1eaft \u0111\u1ea7u v\u1edbi vi\u1ec7c v\u1ee1 t\u00fai \u1ed1i v\u00e0 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a m\u00e0ng \u1ed1i ch\u1ee9a b\u00e0n ch\u00e2n thai nhi \u1edf \u00e2m h\u1ed9. Ng\u00f4i thai b\u00ecnh th\u01b0\u1eddng l\u00e0 ng\u00f4i tr\u01b0\u1edbc d\u1ecdc, l\u01b0ng-x\u01b0\u01a1ng c\u00f9ng, hai ch\u00e2n tr\u01b0\u1edbc du\u1ed7i th\u1eb3ng v\u00e0 \u0111\u1ea7u n\u1eb1m gi\u1eefa hai \u0111\u1ea7u g\u1ed1i (t\u01b0 th\u1ebf \"l\u1eb7n\"). \u0110\u1ed1i v\u1edbi b\u00f2 tr\u01b0\u1edfng th\u00e0nh, qu\u00e1 tr\u00ecnh sinh n\u1edf n\u00ean k\u1ebft th\u00fac trong v\u00f2ng... 30 \u0111\u1ebfn 60 ph\u00fat<\/strong> trong qu\u00e1 tr\u00ecnh r\u1eb7n b\u1ee5ng ch\u1ee7 \u0111\u1ed9ng. \u0110\u1ed1i v\u1edbi b\u00f2 c\u00e1i t\u01a1 sinh l\u1ee9a \u0111\u1ea7u, cho ph\u00e9p t\u1ed1i \u0111a 60 \u0111\u1ebfn 90 ph\u00fat<\/strong>.<\/p>\n

      Quy t\u1eafc can thi\u1ec7p hai gi\u1edd:<\/strong> N\u1ebfu r\u1eb7n \u0111\u1ebb li\u00ean t\u1ee5c h\u01a1n 1 gi\u1edd m\u00e0 kh\u00f4ng c\u00f3 ti\u1ebfn tri\u1ec3n, ho\u1eb7c n\u1ebfu v\u1ee1 \u1ed1i 2 gi\u1edd tr\u01b0\u1edbc \u0111\u00f3 m\u00e0 v\u1eabn ch\u01b0a th\u1ea5y ch\u00e2n thai nhi xu\u1ea5t hi\u1ec7n, h\u00e3y ti\u1ebfn h\u00e0nh kh\u00e1m \u00e2m \u0111\u1ea1o ngay l\u1eadp t\u1ee9c b\u1eb1ng kh\u0103n v\u00f4 tr\u00f9ng v\u00e0 b\u0103ng v\u1ec7 sinh s\u1ea3n khoa c\u00f9ng ch\u1ea5t b\u00f4i tr\u01a1n s\u1ea3n khoa. C\u00e1c nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p g\u00e2y kh\u00f3 sinh bao g\u1ed3m b\u1ea5t t\u01b0\u01a1ng x\u1ee9ng gi\u1eefa thai nhi v\u00e0 khung ch\u1eadu, l\u1ec7ch \u0111\u1ea7u ho\u1eb7c chi (ch\u00e2n co qu\u1eafp, \u0111\u1ea7u quay ng\u01b0\u1ee3c), ng\u00f4i m\u00f4ng ho\u1eb7c xo\u1eafn t\u1eed cung.<\/p>\n

      Giai \u0111o\u1ea1n 3: T\u1ed1ng xu\u1ea5t nhau thai (2 \u0111\u1ebfn 12 gi\u1edd)<\/h3>\n

      Sau khi sinh, c\u00e1c c\u01a1n co t\u1eed cung c\u1ee7a ng\u01b0\u1eddi m\u1eb9 ti\u1ebfp t\u1ee5c di\u1ec5n ra v\u1edbi bi\u00ean \u0111\u1ed9 th\u1ea5p h\u01a1n \u0111\u1ec3 t\u00e1ch c\u00e1c th\u00f9y nhau thai kh\u1ecfi c\u00e1c nh\u00fa nhau thai c\u1ee7a ng\u01b0\u1eddi m\u1eb9. M\u00e0ng nhau thai th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ed1ng ra ngo\u00e0i trong v\u00f2ng 4 \u0111\u1ebfn 8 gi\u1edd. N\u1ebfu nhau thai v\u1eabn c\u00f2n d\u00ednh sau 12 \u0111\u1ebfn 24 gi\u1edd, n\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i v\u1ec1 m\u1eb7t y h\u1ecdc l\u00e0 nhau thai s\u00f3t. M\u00e0ng nhau thai c\u00f2n s\u00f3t l\u1ea1i (RFM)<\/strong>Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng tay b\u00f3c t\u00e1ch ho\u1eb7c k\u00e9o m\u1ea1nh m\u00e0ng nhau thai c\u00f2n s\u00f3t l\u1ea1i, v\u00ec \u0111i\u1ec1u n\u00e0y g\u00e2y xu\u1ea5t huy\u1ebft m\u00e0ng nhau thai nghi\u00eam tr\u1ecdng v\u00e0 \u0111\u1ec3 l\u1ea1i s\u1eb9o trong t\u1eed cung. \u0110i\u1ec1u tr\u1ecb b\u1ea3o t\u1ed3n b\u1eb1ng kh\u00e1ng sinh to\u00e0n th\u00e2n n\u1ebfu b\u00f2 c\u00f3 bi\u1ec3u hi\u1ec7n s\u1ed1t (>103\u00b0F\/39.5\u00b0C), suy nh\u01b0\u1ee3c ho\u1eb7c s\u1ea3n d\u1ecbch c\u00f3 m\u00f9i h\u00f4i.<\/p>\n

      S\u1ef1 co h\u1ed3i t\u1eed cung sau sinh v\u00e0 duy tr\u00ec chu k\u1ef3 sinh b\u00ea 365 ng\u00e0y<\/h2>\n

      Trong ch\u0103n nu\u00f4i b\u00f2 th\u1ecbt th\u01b0\u01a1ng ph\u1ea9m v\u00e0 ch\u0103n nu\u00f4i b\u00f2 s\u1eefa theo m\u00f9a, kh\u1ea3 n\u0103ng sinh l\u1eddi v\u1ec1 m\u1eb7t t\u00e0i ch\u00ednh ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c duy tr\u00ec m\u1ed9t ch\u1ebf \u0111\u1ed9 qu\u1ea3n l\u00fd nghi\u00eam ng\u1eb7t. Kho\u1ea3ng th\u1eddi gian sinh s\u1ea3n 365 ng\u00e0y<\/strong>\u2014c\u00f3 ngh\u0129a l\u00e0 c\u1ee9 m\u1ed7i con b\u00f2 l\u1ea1i sinh ra m\u1ed9t con b\u00ea kh\u1ecfe m\u1ea1nh, c\u00f3 th\u1ec3 b\u00e1n \u0111\u01b0\u1ee3c sau m\u1ed7i 12 th\u00e1ng. V\u1edbi th\u1eddi gian mang thai trung b\u00ecnh l\u00e0 283 ng\u00e0y, ph\u00e9p t\u00ednh \u0111\u01a1n gi\u1ea3n cho th\u1ea5y m\u1ed9t con b\u00f2 c\u00f3 ch\u00ednh x\u00e1c... 82 ng\u00e0y sau khi sinh b\u00ea<\/strong> (365 USD \u00d7 283 USD = 82 USD) \u0111\u1ec3 ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh ph\u1ee5c h\u1ed3i t\u1eed cung, kh\u00f4i ph\u1ee5c chu k\u1ef3 \u0111\u1ed9ng d\u1ee5c c\u00f3 kh\u1ea3 n\u0103ng th\u1ee5 thai v\u00e0 mang thai l\u1ea1i th\u00e0nh c\u00f4ng.<\/p>\n

      \n

      Ph\u01b0\u01a1ng tr\u00ecnh t\u1eeb khi sinh b\u00ea \u0111\u1ebfn khi th\u1ee5 thai: C\u1eeda s\u1ed5 82 ng\u00e0y<\/h3>\n

      \u0110\u1ec3 sinh ra m\u1ed9t con b\u00ea m\u1ed7i n\u0103m, t\u1ed5ng s\u1ed1 ng\u00e0y \u0111\u1ed9ng d\u1ee5c kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 80 \u0111\u1ebfn 85 ng\u00e0y. V\u00ec qu\u00e1 tr\u00ecnh h\u1ed3i ph\u1ee5c t\u1eed cung sau sinh c\u1ea7n 30 \u0111\u1ebfn 45 ng\u00e0y v\u00e0 b\u00f2 c\u00e1i tr\u1ea3i qua 1 \u0111\u1ebfn 2 l\u1ea7n r\u1ee5ng tr\u1ee9ng th\u1ea7m l\u1eb7ng tho\u00e1ng qua tr\u01b0\u1edbc khi \u0111\u1ed9ng d\u1ee5c, n\u00ean vi\u1ec7c ph\u1ed1i gi\u1ed1ng ch\u00ednh th\u1ee9c ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb ng\u00e0y th\u1ee9 45 \u0111\u1ebfn ng\u00e0y th\u1ee9 80 sau sinh.<\/p>\n<\/div>\n

      C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i v\u01b0\u1ee3t qua ba giai \u0111o\u1ea1n sinh h\u1ecdc trong kho\u1ea3ng th\u1eddi gian ph\u1ee5c h\u1ed3i sau sinh ng\u1eafn ng\u1ee7i n\u00e0y:<\/p>\n

        \n
      1. S\u1ef1 tho\u00e1i h\u00f3a t\u1eed cung (Ng\u00e0y 1 \u2013 35):<\/strong> S\u1eebng t\u1eed cung trong th\u1eddi k\u1ef3 mang thai co l\u1ea1i t\u1eeb h\u01a1n 10 kg xu\u1ed1ng d\u01b0\u1edbi 1 kg th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u00e1i c\u1ea5u tr\u00fac m\u00f4 m\u1ea1nh m\u1ebd, bong tr\u00f3c c\u01a1 t\u1eed cung v\u00e0 ti\u1ebft s\u1ea3n d\u1ecbch. S\u1ef1 nhi\u1ec5m khu\u1ea9n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf th\u00f4ng qua qu\u00e1 tr\u00ecnh th\u1ef1c b\u00e0o t\u1ef1 nhi\u00ean. Qu\u00e1 tr\u00ecnh tho\u00e1i h\u00f3a ho\u00e0n to\u00e0n ni\u00eam m\u1ea1c t\u1eed cung v\u1ec1 m\u1eb7t m\u00f4 h\u1ecdc c\u1ea7n kho\u1ea3ng 40 ng\u00e0y.<\/li>\n
      2. Kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng v\u00f4 sinh sau sinh (Ng\u00e0y 30 \u2013 60):<\/strong> K\u00edch th\u00edch t\u1eeb vi\u1ec7c b\u00fa s\u1eefa c\u1ee7a b\u00ea con gi\u1ea3i ph\u00f3ng opioid n\u1ed9i sinh, \u1ee9c ch\u1ebf s\u1ef1 ti\u1ebft GnRH c\u1ee7a v\u00f9ng d\u01b0\u1edbi \u0111\u1ed3i, ng\u0103n ch\u1eb7n hormone luteinizing (LH) v\u00e0 l\u00e0m tr\u00ec ho\u00e3n l\u1ea7n r\u1ee5ng tr\u1ee9ng \u0111\u1ea7u ti\u00ean. B\u00f2 c\u00f3 th\u1ec3 tr\u1ea1ng t\u1ed1t (BCS \u2265 5.5) th\u01b0\u1eddng ph\u1ee5c h\u1ed3i chu k\u1ef3 sinh s\u1ea3n v\u00e0o ng\u00e0y th\u1ee9 45 \u0111\u1ebfn 55, trong khi b\u00f2 g\u1ea7y (BCS \u2264 4.5) tr\u1ea3i qua th\u1eddi k\u1ef3 v\u00f4 sinh k\u00e9o d\u00e0i t\u1eeb 80 \u0111\u1ebfn 120 ng\u00e0y, kh\u00f4ng \u0111\u1ea1t chu\u1ea9n 365 ng\u00e0y.<\/li>\n
      3. M\u00f9a sinh s\u1ea3n c\u00f3 ki\u1ec3m so\u00e1t (60 \u0111\u1ebfn 90 ng\u00e0y):<\/strong> H\u1ea1n ch\u1ebf vi\u1ec7c th\u1ea3 b\u00f2 \u0111\u1ef1c gi\u1ed1ng ho\u1eb7c th\u1ee5 tinh nh\u00e2n t\u1ea1o trong v\u00f2ng 60 ng\u00e0y s\u1ebd t\u1eadp trung th\u1eddi gian sinh s\u1ea3n, t\u1ea1o ra m\u1ed9t l\u1ee9a b\u00ea \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 c\u00f3 gi\u00e1 tr\u1ecb th\u01b0\u01a1ng m\u1ea1i cao. Nh\u1eefng con b\u00f2 kh\u00f4ng ph\u1ed1i gi\u1ed1ng trong kho\u1ea3ng th\u1eddi gian n\u00e0y n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra mang thai s\u1edbm, b\u00e1n \u0111i ho\u1eb7c chuy\u1ec3n sang \u0111\u00e0n b\u00f2 kh\u00e1c theo m\u00f9a.<\/li>\n<\/ol>\n

        B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p to\u00e0n di\u1ec7n c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee7a ch\u00fang t\u00f4i m\u00e1y t\u00ednh th\u1eddi gian mang thai c\u1ee7a b\u00f2<\/strong> Nh\u1edd vi\u1ec7c ch\u1ea5m \u0111i\u1ec3m th\u1ec3 tr\u1ea1ng gia s\u00fac t\u1ec9 m\u1ec9, ti\u00eam ph\u00f2ng tr\u01b0\u1edbc khi sinh \u0111\u00fang li\u1ec1u l\u01b0\u1ee3ng v\u00e0 \u00e1p d\u1ee5ng c\u00e1c quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u00e0i b\u1ea3n, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ea3m b\u1ea3o s\u1ef1 th\u00e0nh c\u00f4ng sinh s\u1ea3n \u1ed5n \u0111\u1ecbnh h\u00e0ng n\u0103m cho to\u00e0n b\u1ed9 \u0111\u00e0n gia s\u00fac c\u1ee7a h\u1ecd.<\/p>","protected":false},"excerpt":{"rendered":"

        Accurately calculate your cow’s estimated calving due date with our free Cattle Gestation Calculator. Plan breeding schedules, embryo transfer timelines, trimester veterinary milestones, and herd management.<\/p>","protected":false},"author":0,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"tools\/template-tool.php","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[705],"tags":[],"class_list":["post-3114","page","type-page","status-publish","hentry","category-useful-tools"],"acf":{},"yoast_head":"\nCattle Gestation Calculator | Accurate Calving Date Planner<\/title>\n<meta name=\"description\" content=\"Calculate your cow's exact calving due date with our free Cattle Gestation Calculator. 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