Reproductive disorders and low fertility in cows

Alejandro Córdova - Izquierdo,Román Espinosa Cervantes,Rubén Huerta Crispín,Jaime Olivares Pérez,Ma De Lourdes Juárez Mosqueda,Edmundo Abel Villa Mancera,Armando Gómez Vázquez,Juan Eulogio Guerra Liera

doi:10.24327/ijrsr.2017.0805.0241

Alejandro Córdova - Izquierdo, Román Espinosa Cervantes + Show 6 more

Open Access

https://doi.org/10.24327/ijrsr.2017.0805.0241

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Abstract

Reproductive disorders and low fertility in cows

Highlights

During the last two decades, the advances in genetic improvement, the area of nutrition and in the improvement of animal management have made the average production of cows specialized in milk production increasing; such an increase in dairy production has negatively impacted the reproductive performance of these animals, such as low conception rates, which do not correspond to those achieved 20 to 30 years ago; So that before conception rates of 60% could be attained, at present and at best, can only be achieved, from 40 to 50%
The problem of repetitive cows is considered to be the second reproductive problem, after the problems of postpartum infants, mainly in Units of bovine production of tropical zones, which is considered as a problem of low fertility, that sometimes, Is below 30% of gestations
One can think that man does not have to do with the breeding faults of cattle, but if we analyze it carefully, we will see that it does have a lot to do; Because man is directly responsible for the management of livestock in general terms, so it is he who owes and has the responsibility to provide livestock with an absolute state of well-being, which has a direct impact on the reproductive performance of animals

Summary

INTRODUCTION

During the last two decades, the advances in genetic improvement, the area of nutrition and in the improvement of animal management have made the average production of cows specialized in milk production increasing; such an increase in dairy production has negatively impacted the reproductive performance of these animals, such as low conception rates, which do not correspond to those achieved 20 to 30 years ago; So that before conception rates of 60% could be attained, at present and at best, can only be achieved, from 40 to 50%. We can say that at present, 15 to 16% of cows with stray repetition problems can be accepted, which means achieving at least 45% of conceptions (Cavazos, 2001, Cordova et al 2002). The problem of repetitive cows is considered to be the second reproductive problem, after the problems of postpartum infants, mainly in Units of bovine production of tropical zones, which is considered as a problem of low fertility, that sometimes, Is below 30% of gestations. The low fertility of the animals in UPA, is directly related to metabolic disorders, whose result is that the high producing cows can usually present negative energy balance during the first 70-80 days postpartum. Are some vital points related to the fertility problem in dairy cows

Causes of Infertility Caused By Man

Nutritional Causes That May Cause Infertility

Findings

Micronutrient Vitamin A Vitamin E Selenium Copper Zinc