Effect of gonadorelin dose and an additional gonadorelin treatment 2 days after the initiation of Resynch-25 on ovarian dynamics and fertility of lactating Holstein cows

Effect of gonadorelin dose and an additional gonadorelin treatment 2 days after the initiation of Resynch-25 on ovarian dynamics and fertility of lactating Holstein cows

ABSTRACT: Our objective was to improve ovulatory response at the initiation of the Resynch-25 protocol by (1) increasing the dose of GnRH from 100 µg to 200 µg; and (2) giving a second GnRH treatment 56 h after the initiation of the protocol. We considered the experimental d 0 the day of the previou...

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Main Authors: Iago M.R. Leão, Carlos E.C. Consentini, Marcelo S. El Azzi, Everaldo Anta-Galván, Teresita Valdés-Arciniega, Lucas Oliveira e Silva, Roberto Sartori, João Paulo N. Martins
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Journal of Dairy Science
Subjects:
GnRH
resynchronization
timed AI
ovulation
Online Access:http://www.sciencedirect.com/science/article/pii/S002203022401333X
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