Replacing the first gonadotropin-releasing hormone treatment in an Ovsynch protocol with human chorionic gonadotropin decreased pregnancies per artificial insemination in lactating dairy cows

Autor: Cabrera, E.M., Lauber, M.R., Valdes-Arciniega, T., El Azzi, M.S., Martins, J.P.N., Bilby, T.R., Fricke, P.M. *
Zdroj: In Journal of Dairy Science July 2021 104(7):8290-8300
Databáze: ScienceDirect