1. Correlation between estrus onset and ovarian parameters in dairy goats
- Author
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CORTAT, P. R., DIAS, M. B., PAULA, C. J. C. de, RANGEL, P. S. C., OLIVEIRA, M. E. F., SOUZA-FABJAN, J. M. G. de, FONSECA, J. F. da, PAULA RENATA CORTAT, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil, MIRELA BALISTRIERI DIAS, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil, CLEBER JONAS CARVALHO DE PAULA, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil, PAULO SERGIO CERQUEIRA RANGEL, Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brazil, MARIA EMILIA FRANCO OLIVEIRA, Universidade Estadual Paulista (UNESP) - Jaboticabal, SP, Brazil, JOANNA MARIA GONÇALVES DE SOUZA-FABJAN, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil, and JEFERSON FERREIRA DA FONSECA, CNPC.
- Subjects
Ovulation ,Reprodução Animal ,Manifestação de estro ,Cabra Leiteira ,Animal reproduction ,Ovulação ,Estrus behavior ,Dairy goats ,Estrus synchronization ,Comportamento Animal ,Follicular dynamics ,Estrus ,Ciclo Estral ,Caprino ,Social hierarchy ,Dinâmica folicular ,Social behavior ,Animal behavior ,Hierarquia social - Abstract
This study assessed the effects of social dominance on the behavioral estrus and ovarian parameters of dairy goats subjected to synchronous estrus induction during the non-breeding season. Synchronous estrus was induced in 23 dairy goats allocated to collective pens. Ovarian ultrasonography was performed at 12 h intervals from device removal to ovulation. Upon estrus onset (EO) detection, the goats were immediately removed from the pens. Dominance was scored according to EO in relation to device removal in each pen, with HD-high dominants (48 h; n = 5). Goats in estrus underwent flexible time artificial insemination (FxTAI) according to EO. The estrus response was 100.0%. The interval to estrus was longer (P0.05) among all groups. The interval from EO to FxTAI was longer in HD goats compared to the other groups (P
- Published
- 2022