REPRODUCTIVE PERFORMANCE OF SOWS AND PRODUCTION OF WEANERS AT 14 AND 21 DAYS OF AGE

Abstract

The experiment was made in the college “Dr. Francisco Maeda – FAFRAM”, situated in Ituverava- SP and its geographical coordinates are latitude of 20º20’30’’ South, longitude 47º47’30’’ West and 631 meters of elevation, since February 18 up to May 30, 2008. Its goal is evaluating the performance of animals since their birthday up to 60 days of life and about the period of time that the female reproducer animal, which is submitted to stop suckling in different periods of time, takes to have a new fertile period. The collected data were analyzed into two aspects: variance and comparison of the means using the Turkey test, the possibility of error was set 5% (95% of reliability) to have acceptable results. It concluded that the animals which stopped suckling in 14 or 21 days showed similar results in the evaluated aspects and it means that their performance was not impaired. The female pigs had fertile period as soon as they stopped suckling and they were not influenced by the day of stopping suckling.