http://lattes.cnpq.br/1697655989079287; MORENO, Camila Mendonça Bezerra.
Résumé:
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.
