Effect of cooling down period on semen quality of Thai native chicken
2006
Sarawut Sringam(Khon Kaen University, Khon Kaen (Thailand). Faculty of Veterinary Medicine. Dept. of Surgery and Theriogenology) | Banyat Laopiboon(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Animal Science) | Monchai Duangjinda(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Animal Science) | Thevin Vongpralub(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Animal Science)
Objectives of the study were to study the effect of cool down time on sperm motility, viability and methylene blue reduction test. The correlation between sperm motility and MBRT was determined. The experimental design was performed on RCBD, 2 blocks of pool semen (5 cocks per block) and 6 treatments of cooling down period (0, 30 min, 1, 2, 3 and 4 hr). The sperm motility of semen from 0, 30 min, 1, 2 and 3 hr group were higher than 4 hr group (p LT 0.05). The sperm viability and MBRT results of sperm at 0 min group were higher than sperm at 4 hr group (p LT 0.05) but did not differ from 30 min, 1, 2 and 3 hr group. Sperm motility was highly negative correlated to MBRT (R**(2)=0.74).
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