Effect of follicle age on conception rate in beef heifers1

Author:

Abreu F. M.12,Cruppe L. H.1,Maquivar M.1,Utt M. D.1,Madsen C. A.2,Vasconcelos J. L. M.3,Mussard M. L.1,Day M. L.1,Geary T. W.2

Affiliation:

1. Department of Animal Sciences, The Ohio State University, Columbus, 43210

2. USDA-ARS, Fort Keogh Livestock and Range Research Laboratory, Miles City, MT 59301

3. Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia-UNESP, Botucatu, SP, Brazil

Publisher

Oxford University Press (OUP)

Subject

Genetics,Animal Science and Zoology,General Medicine,Food Science

Reference28 articles.

1. Use of bovine FSH for superovulation and embryo production in beef heifers;Bellows;Theriogenology,1991

2. Association between ovarian follicle development and pregnancy rates in dairy cows undergoing spontaneous oestrus cycle;Bleach;Reproduction,2004

3. Decreasing the interval between GnRH and PGF2α from 7 to 5 days and lengthening proestrus increases timed-AI pregnancy rates in beef cows;Bridges;Theriogenology,2008

4. Influence of the length of proestrus on fertility and endocrine function in female cattle;Bridges;Anim. Reprod. Sci.,2010

5. Comparison of follicular dynamics and hormone concentrations between the 7 d and 5 d CO-Synch + CIDR program in two-year old beef cows;Bridges;J. Anim. Sci.,2009

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