Effects of season and environmental modification on reproductive performance during early gestation of pig in Thailand
1995
Srinoy Chumkam
There are 3 experiments in the present study. Experiment 1 was designed to determined the effect of climatic environment on reproductive performance of sows (parity 3-6) during early gestation period. The data were collected from 3 farms, one each in Lopburi, Nakhon Ratchasima and Chonburi provinces. Meteorologica data were also collected. There were statistical difference (P0.01) among three farms in the number of total born and mummified pigs. The number of born alive in the third farm was highest and the mummified pigs in the first farm was lowest. There was no statistical difference among seasons in percent of sows farrowed in summer, rainy and winter, but there was a trend (P
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