Studies on Increase of Litter Size by Infusion with Sterile Boar and Their Semen before Gestation in Gilts
2003
Youn, J.W. | Kim, J.D. | Chung, H.W. (Yonam College of Agriculture, sunghwan, Republic of Korea)
This study was conducted to investigate the effect of infusion of sterile boar and their semen as pregnancy antigen factor for improvement of production in gilts. We observed 160 gilts between 7 to 8 months of age that were divided into 4 treatment groups viz. A group-control in a completely randomized design. The number of total pigs born of A, B, C, and groups were 10.05, 10.44,11.63, and 9.97 pigs , respectively. And the NT of C group was the highest among treatment. The number of live pigs born was similar to NT. The NB of C group was higher than that of A and control. However, there was not significant between B and C groups. The progesterone concentration of C group concentration of C was lower than other groups after the 8th day.
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