Title:	Impact of sperm hyperactivation and estrus on pregnancy in timed AI Bos indicus beef cows.
Authors:	PFEIFER, L. F. M. SILVA, G. M. da SOUZA, V. L. de ANDRADE, J. de S. POTIENS, J. R.
Affiliation:	LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO; GEORGE MOREIRA DA SILVA, UNIVERSIDADE FEDERAL DE RONDÔNIA; VANESSA LEMOS DE SOUZA, UNIVERSIDADE FEDERAL DE RONDÔNIA; JÉSSICA DE SOUZA ANDRADE, SELEON BIOTECNOLOGIA; JOSÉ ROBERTO POTIENS, SELEON BIOTECNOLOGIA.
Date Issued:	2025
Citation:	Brazilian Journal of Veterinary Research and Animal Science, v. 62, e223638, 2025.
Description:	This study hypothesized that cows that express estrus within 48 hr of progesterone insert removal ovulate earlier, and that the association between estrus and the degree of sperm hyperactivation increases pregnancy rates in beef cows. The kinematics of the semen used in this study did not influence the fertility of cows, regardless of estrus incidence.
Thesagro:	Reprodução Animal Fertilidade Animal Vaca de Corte Bos Indicus Prenhez Ovulação
NAL Thesaurus:	Animal reproduction Animal fertility Beef cows Pregnancy Estrus Ovulation
Keywords:	Hiperativação espermática Estro Sperm hyperactivation
ISSN:	1413-9596 (impresso) / 1678-4456 (online)
DOI:	https://doi.org/10.11606/issn.1678-4456.bjvras.2025.223638
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-RO)