Effects of human chorionic gonadotropin on the last day of a 5-day CIDR Synch protocol and 5 days later on circulating progesterone concentrations and luteal area in Holstein heifers

The objective was to determine the effect of replacing GnRH with human chorionic gonadotropin (hCG) on the last day of a 5-d CIDR Synch protocol (d 0) and inducing accessory corpus luteum (CL) formation with hCG 5 d later (d 5) on serum progesterone (P4) concentrations and luteal dynamics in dairy h...

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Bibliographic Details
Main Authors: Marcelo S. El Azzi, Teresita Valdes-Arciniega, Everardo Anta-Galvan, Iago M.R. Leão, Rodrigo V. Sala, Meliton Fosado, José C. de Souza, João Paulo N. Martins
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:JDS Communications
Online Access:http://www.sciencedirect.com/science/article/pii/S2666910222000746