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  1. Influencia de la estacionalidad en la fertilidad de vacas Holstein altas productoras

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    Description: The monthly fertility, was evaluated along the year, during the implicit period of 1991-2000. We used data records of reproduction of 24,380 artificial inseminations of high producer’s dairy cows. The study was made in "La Quinta Ranch" in Actopan, Hidalgo State, it is located an altitude of 1980 msnm, with...
    Subject: Vacas -- Inseminación artificial, Ganado vacuno -- Reproducción, Vacas -- Reproducción, Artificial insemination, Cows -- Reproduction, Cows -- Artificial insemination, and Cattle -- Reproduction
    Creator: Villa Mancera, Abel Edmundo
    Contributor: Pérez Martínez, Mario, Jaramillo Jaimes, María Teresa, and Olivera López, Jorge Ivan
    Publisher: Universidad Autónoma Metropolitana
    Posgrado: Maestria en Biologia de la Reproduccion Animal
    Language: spa
    Año de publicación: 2002
    Rights Statement*: Acceso Abierto
    License: Atribucion-NoComercial 4.0 Internacional (CC BY-NC 4.0)
    Tipo de Recurso: Tesis de Maestría