Comparison of follicular development, timing of ovulation and serum progesterone, estradiol and luteinizing hormone concentrations in dairy heifers treated with 4‐ or 5‐day CoSynch + CIDR protocols

Comparison of follicular development, timing of ovulation and serum progesterone, estradiol and luteinizing hormone concentrations in dairy heifers treated with 4‐ or 5‐day CoSynch + CIDR protocols

Abstract The use of 4‐day CoSynch + Controlled internal drug release (CIDR) + timed artificial insemination (TAI) in dairy heifers has resulted in adequate pregnancy rates compared with the 5‐day CoSynch + CIDR + TAI protocol. The objective of this study was to compare follicular growth, timing of o...

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Bibliographic Details
Main Authors: Heidi Fishman‐Holland, Agne Stoskute, Maria S. Ferrer, Deana Veal, Joao H. J. Bittar, Emmanuel Rollin, Jeferson Lourenço, Roberto A. Palomares
Format: Article
Language:English
Published: Wiley 2019-08-01
Series:Veterinary Medicine and Science
Subjects:
Co‐Synch
CIDR
Dairy heifer
Luteinizing hormone
Estradiol
Ovulation
Online Access:https://doi.org/10.1002/vms3.171

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