Estudo da eficiência reprodutiva em Vacas Girolando criadas na Agropecuária Chapada do Moura LTDA. no Município de Iguatu - CE.

Abstract

In farm animal reproductive efficiency is the key success factor in a creation, but for that to happen, it is necessary that females show high reproductive rates, evaluated based on aspects such as age at first estrus (puberty); age at first calving; calving interval and service period. Considering these aspects, the objective of this study was to evaluate the reproductive efficiency, and based on the age at first calving, calving interval and race cows duty period Girolando created in the Agropecuária Chapada do Moura Ltda. in the city of Iguatu- Ceará, in the years 2012 to 2014. Data were collected through individual chips husbandry of animals from Girolando com race records of 2012, 2013 and 2014 stored in Dairy Plan C21, which is a specific software for agriculture. This program is used to calculate averages, do graphics and statistical results assisting in the analysis of productive animals. The collected data were: age of first calving, calving interval and service period. The average age at first calving obtained during the study period was 34.9 months. For the range of values between births in the three years evaluated, we can see that the average was 13.7 months, while for service period the averages were 156.2; 126.6 and 160.7 days for the years 2012, 2013 and 2014, respectively. It can be concluded, therefore, the reproductive parameters evaluated in this study were within a consistent with the observed variation in the literature, however, there was a likely influence of the year, which in the year 2013, there was obtained an improvement in reproductive parameters evaluated, compared to the other years studied.