Presynchronization with prostaglandin F2α and gonadotropin-releasing hormone simultaneously improved first-service pregnancy per artificial insemination in lactating Holstein cows compared with Presynch-14 when combined with detection of estrus

Presynchronization with prostaglandin F2α and gonadotropin-releasing hormone simultaneously improved first-service pregnancy per artificial insemination in lactating Holstein cows compared with Presynch-14 when combined with detection of estrus

ABSTRACT: This study aimed to determine the effect of 2 simple breeding strategies combining artificial insemination (AI) after detection of estrus (AIED) and timed AI (TAI) on first-service fertility in lactating Holstein cows. Weekly, lactating Holstein cows (n = l,049) between 40 and 46 d in milk...

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Bibliographic Details
Main Authors: J.P.N. Martins, T.O. Cunha, W. Martinez, J.S. Schmitt
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Journal of Dairy Science
Subjects:
presynchronization
Ovsynch
detection of estrus
fertility
timed artificial insemination
Online Access:http://www.sciencedirect.com/science/article/pii/S0022030223002114

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http://www.sciencedirect.com/science/article/pii/S0022030223002114

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