Effect of extenders and containers under rough-road transport on liquid boar semen quality
1996
Thevin Vongpralub | Khanjana Bunsit | Pitcharat Sanchaisuriya | Bunta Tummabut | Manit Sontichai (Khon Kaen Univ., Khon Kaen (Thailand). Faculty of Agriculture. Dept. of Animal Science)
Experiments were conducted to evaluated the effects of extender and transporting container on diluted boar semen quality. The effects of extender on sperm motility and normal apical ridge of acrosome (NAR) after 3 days storage were compared. Four extenders used for storage of semen at 15-20 deg C were Kiev and Beltsville Thawing Solution (BTS), Illinois Variable Temperature (IVT), Beltsville Liquid No.1 (BL1), and Foley. Kiev and BTS were the most successful extenders. At storage temperature of 5 deg C, among 5 extenders: Egg-Yolk Glucose Buffer (EGB), E-3, Kharkov, Skimmilk-Glucose, and Foley with egg yolk, the E-3 extender resulted the highest motility, whereas Skimmilk-Glucose extender produced the highest NAR. Styrofoam box was successive container under rough-road transport condition. However, the motility was poor when compared with untransported diluted semen. Sows were bred naturally or artificial insemination using semen diluted with Kiev and BTS after 1-3 days storage and transported on rough road by the motorcycle. The farrowing rates of the three insemination methods were 83.3 percent, and litter sizes were 9.8, 8.3 and 9.0 for natural mating, A.I with Kiev, and A.I. with BTS, respectively. There was no statistical difference among insemination procedures. The results indicate that rough-road transport of stored semen in styro-foam box is appropriate for A.I. in swine.
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