Alejandro Córdova Izquierdo
Universidad Autónoma Metropolitana Unidad Xochimilco,
Calz, Del hueso 1100 Col, Villa Quietud C.P. 04960, D.F
Mexico
Editorial
Reproductive Disorders and Low Fertility in Dairy Cows
Author(s): Alejandro Córdova IzquierdoAlejandro Córdova Izquierdo
During the last two decades, advances in genetic improvement, the area of nutrition and the improvement in the handling of animals, have made production averaged specialized cow’s milk production is increasing; however, such an increase in milk production, has had a negative impact on reproductive performance of these animals, such as low conception rates, which do not correspond to those that were achieved 20 to 30 years ago; so that before they could achieve conception rates 60%, at present and in the best case, only be achieved 40 to 50%. From all this, we can say that today, you can take the 15 to 16% of cows with estrus repetitions problems, which means achieving at least 45% of conceptions... View More»
