Effect of equine chorionic gonadotropin (eCG) administration and proestrus length on ovarian response, uterine functionality and pregnancy rate in beef heifers inseminated at a fixed-time

Author:

Núñez-Olivera R.,Cuadro F.,Bosolasco D.,de Brun V.,de la Mata J.,Brochado C.,Meikle A.,Bó G.A.,Menchaca A.

Funder

Agencia Nacional de Investigación e Innovación

Publisher

Elsevier BV

Subject

Equine,Animal Science and Zoology,Food Animals,Small Animals

Reference42 articles.

1. Decreasing the interval between GnRH and PGF2αfrom 7 to 5 days and lengthening proestrus increases timed-AI pregnancy rates in beef cows;Bridges;Theriogenology,2008

2. State of the art of GnRH - based timed AI in beef cattle;Day;Anim Reprod,2015

3. Controlling the dominant follicle in beef cattle to improve estrous synchronization and early embryonic development;Day;Soc Reprod Fertil Suppl,2010

4. Alternative programs for synchronizing and resynchronizing ovulation in beef cattle;Bó;Theriogenology,2016

5. Effects of extending the length of pro-oestrus in an oestradiol- and progesterone-based oestrus synchronisation program on ovarian function, uterine environment and pregnancy establishment in beef heifers;de La Mata;Reprod Fertil Dev,2018

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