The use of insulin to improve fertility of timed-inseminated postpartum suckled beef cows

被引：3

作者：

Schneider, Augusto ^{[1
]}

Machado Pfeifer, Luiz Francisco ^{[2
]}

Schmitt, Eduardo ^{[2
]}

Bianchi, Ivan ^{[2
]}

Vieira, Marcelo Brandi ^{[3
]}

Xavier, Eduardo Gularte ^{[3
]}

Burkert Del Pino, Francisco Augusto ^{[4
]}

Correa, Marcio Nunes ^{[2
]}

机构：

[1] Univ Fed Pelotas UFPel, Nucleo Pesquisa Ensino & Extensao Pecuaria, Ctr Biotecnol, BR-96010900 Pelotas, RS, Brazil

[2] Univ Fed Pelotas, Fac Vet, Pelotas, RS, Brazil

[3] Granja 4 Irmaos, Rio Grande Do Sul, RS, Brazil

[4] Univ Fed Pelotas, Dept Bioquim, Pelotas, RS, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2010年 / 45卷 / 10期

关键词：

Bos taurus; eCG; insulin; FTAI; weaning; GROWTH-FACTOR-I; BODY CONDITION SCORE; PROGESTERONE; ESTRADIOL; GONADOTROPIN; HEIFERS; HORMONE; CATTLE; PLASMA;

D O I：

10.1590/S0100-204X2010001000023

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to evaluate the effect of insulin alone or in association with equine chorionic gonadotropin (eCG) on the fertility of postpartum beef cows subjected to synchronization. A total of 340 cows was subjected to fixed time artificial insemination. In the trial 1, the cows were subjected to temporary weaning (TW), while in the trial 2 the same protocol was tested without TW. The addition of an insulin injection to a progesterone/eCG-based protocol without TW increased the pregnancy rate of beef cows with body condition score (BCS) equal to or lower than 2.5. Insulin had no effect on cows submitted to TW or with BCS equal to or higher than 3.0.

引用

页码：1219 / 1221

页数：3

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