Data/hora: 06/06/2024 02:24:38

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Effect of follicular wave synchronization on superovulatory response of Girolando embryo donors	
Autores: 	Ferreira,Joaquim Esquerdo; Mello,Marco Roberto Bourg de; Alves,Pedro Afonso de Preaulx Moreira; Mello,Raquel Rodrigues Costa; Palhano,Helcimar Barbosa.	
Data: 	2014-11-01	
Ano: 	2014	
Palavras-chave: 	Animal category; Bos taurus indicus; Embryo transfer; Genetic group.	
Resumo: 	The objective of this study was to evaluate the effect of the follicular wave synchronization method on the superovulatory response of Girolando embryo donors. Seven cows and five heifers were divided into three treatments according to the method of the follicular wave synchronization prior to superovulation. The donors were superovulated with eight FSH decreasing doses, adding 133 mg per animal. The superovulatory response was evaluated using an ultrasound device to quantify the number of corpora lutea. The number and quality of recovered structures were also evaluated. Animal category (cow or heifer) and genetic group influenced the superovulatory response, in which heifers showed a greater response (100% in all treatments) compared with cows, which showed 85.7%, 57.1% and 57.1% superovulatory response for standing estrus, GnRH and P4 + BE groups, respectively. The genetic group also showed influence on superovulatory response, in which the 3/8 animals had an average of 10.3 corpora lutea per donor compared with the 3/4 animals, which showed 4.9. The follicular wave synchronization treatments did not show differences in superovulatory response, recovered structures and viable structures. The treatment of follicular wave synchronization with GnRH or with P4 + BE can be used in Girolando donors with the same efficiency as the standing estrus group, and 3/8 Girolando heifers respond better to the superovulatory treatment.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100568	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982014001100002	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.43 n.11 2014	
Fonte: 	info:eu-repo/semantics/openAccess