In vitro sperm characteristics and in vivo fertility of sex-sorted and conventional semen in suckled Nelore cows at a traditional schedule for timed-AI with estrus detection

Autor:	J.H.W. Diniz, J.A.N. Riveros, A.C.B. Teixeira, I.C. Pereira, A.M. Borges, G.A. Monteiro, R.F.G. Peres, L.O. Rocha, M.E. Beletti, L.Z. Oliveira
Rok vydání:	2022
Předmět:	General Veterinary
Zdroj:	Arquivo Brasileiro de Medicina Veterinária e Zootecnia. 74:969-982
ISSN:	1678-4162 0102-0935
DOI:	10.1590/1678-4162-12757
Popis:	The aim of this study was to assess in vitro sperm characteristics and pregnancies/AI (P/AI) of conventional and sex-sorted semen at timed-AI of suckled, multiparous Nelore cows. All cows (n=348) were submitted to a traditional estradiol/progesterone(P4)-based protocol. At 48h after P4-device removal, the estrous behavior was recorded, and AI was performed with conventional or sex-sorted semen from two bulls. The following sperm assessments were performed: CASA, Hyposmotic Test, sperm morphometry and chromatin structure by TB staining. P/AI were reduced (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e3da75eedb9360d2d7323e2641ec991 https://doi.org/10.1590/1678-4162-12757 Zobrazit plný text záznamu