The Influences of Different Insemination Techniques to Reproduction Performance of Sow

Sows of two crossbreds were chosed from a pig farm in Jiangxi Province, and crossed with ripe Durock boar. Different insemination techniques were used for observing its influence on reproduction performance of sows.The results showed the best result was obtained by complete artificial insemination.The average number of farrow piglets was larger by 0.49 head than that from natural insemination, 0.31 head more than that from half artificial insemination. The average number of farrow living piglets was larger by 0.44 head than that from natural insemination, 0.28 head more than that from half artificial insemination.The fecundation rate and farrow weight of newborn through complete artificial insemination were lower than those from natural insemination, but higher than those from half artificial insemination. Three different insemination techniques had no diversity in essence and its influence on reproduction performance of sows were not dominant (P0.05). So it is suitable to extend the use of artificial insemination comprehensively in medium or large pig farms.