Anti-M üllerian hormone and antral follicle count are more effective for selecting ewes with good potential for in vivo embryo production than the presence of FecGE mutation or eCG pre-selection tests

This study aims to compare four different methods for selecting high responding sheep donors for in vivo embryo production. These methods include a pre-selection eCG test (eCG), antral follicle count (AFC), plasma anti-M üllerian hormone measurement (AMH) and genotyping for the presence of the FecGE mutation (a polymorphism in the GDF9 gene associated with increased ovulation rate). Santa Ines ewe lambs (n = 25) underwent superovulation (SOV) with 800 IU equine chorionic gonadotropin (eCG) and the corpus luteum (CL) count was recorded by laparoscopy after eight days.

Source: Theriogenology - February 23, 2018 Category: Genetics & Stem Cells Authors: Pedro Henrique Nicolau Pinto, Mario Felipe Alvarez Balaro, Joanna Maria Gon çalves Souza-Fabjan, Lilian dos Santos Ribeiro, Gláucia Mota Bragança, Ceci Ribeiro Leite, Eduardo Kenji Nunes Arashiro, Kleibe de Moraes Silva, Jeferson Ferreira Da Fonseca, F Source Type: research