Evolution of fixed-time AI in dairy cattle in Brazil

Autor:	Thiago Guzela Guida, Anderson Kloster Munhoz, José Luiz Moraes Vasconcelos, Carlos Patricio Sanches Junior, Milo C. Wiltbank, M. H. C. Pereira, Lucas Furtado dos Santos Pereira Barbosa, Wedson Maria Costa Junior, Francisco Rebolo Lopes Junior
Rok vydání:	2018
Předmět:	0301 basic medicine 03 medical and health sciences 030104 developmental biology Animal science General Veterinary Fixed time 0402 animal and dairy science Animal Science and Zoology 04 agricultural and veterinary sciences Biology 040201 dairy & animal science Dairy cattle
Zdroj:	Animal reproduction. 15(Suppl 1)
ISSN:	1984-3143
Popis:	Various programs have been used to synchronize ovulation of a fertile oocyte, accompanied by fixed-time artificial insemination (FTAI). These programs involve a series of hormonal treatments to achieve four physiologic outcomes: 1) synchronize an ovarian follicular wave; 2) optimize conditions for ovulatory follicle development; 3) synchronize corpus luteum (CL) regression; and 4) synchronize ovulation. This manuscript summarizes studies conducted in Brazil with lactating dairy cows that aimed to increase pregnancy rates to E2/P4-based programs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83c708959fdcd28708e7af12767bef87 https://pubmed.ncbi.nlm.nih.gov/36249843 Zobrazit plný text záznamu