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KMID : 1025520120540020095
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Journal of Animal Science and Technology
2012 Volume.54 No. 2 p.95 ~ p.101
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Effect of Amides as a Cryoprotectant on Quality of Frozen-thawed Sperm in Korean Jeju Black Bull
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Oh Shin-Ae
Choi Sun-Ho
Ko Min-Hee
Kang Tae-Young
Cho Sang-Rae
Ko Moon-Suck
Oh Young-Mi
Cho Won-Mo
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Abstract
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The objective of this study was to examine the effect of amides as a cryoprotectant for semen cryopreservation in Korean Jeju Black Bull. The semen was cryopreserved with extenders containing 5% dimethyl acetamide(DMA), 5% dimethyl formamide (DMF), 5% methyl formamide(MF) or 7% glycerol. Post-thawed sperm were evaluated for sperm motility, viability, acrosome integrity and membrane integrity. Post-thawed sperm motility was significantly higher(p<0.05) in glycerol and DMF(64.00%± 9.62 and 59.00%±5.48, respectively) than DMA and MF(50.00%±3.24 and 44.00%±4.18, respectively). Sperm viability wassignificantly higher(p<0.05) in glycerol and DMF(58.25%±7.35 and 53.05%±3.77, respectively) than others. However, for sperm motility and viability, there were no differences among glycerol and DMF. Also, swelling sperm ratio by hypo-osmetic selling test(HOST) was significantly increased(p<0.05) in glycerol and DMF treatments(45.12%±25.08 and 44.95%±8.58, respectively). The percentage of capacitated sperm assessed by CTC staining, F pattern was lower(p<0.05) in DMF than others. B pattern was increased(p<0.05) in DMA, DMF and MF when compared with glycerol. AR pattern ratio was decreased(p<0.05) in glycerol and DMF when compared with DMA and MF. These results suggested that amides performed better and could be used as a cryoprotectant for semen freezing of Korean Jeju Black Bull.
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KEYWORD
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Korean Jeju Black Bull, Semen freezing, Cryoprotectants, Amide compound
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