Reproductive and Developmental Biology

The Korean Society of Animal Reproduction (한국동물번식학회)
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Assessment of Sperm Characteristics in Fresh and Frozen Semen of Miniature-Pig

  • Lee S. H. (College of Animal Resource Science, Kangwon National University) ;
  • Kim T. S. (College of Animal Resource Science, Kangwon National University) ;
  • Cheong H. T. (College of Animal Resource Science, Kangwon National University) ;
  • Yang B. K. (College of Animal Resource Science, Kangwon National University) ;
  • Kim C. I. (College of Animal Resource Science, Kangwon National University) ;
  • Park C. K. (College of Animal Resource Science, Kangwon National University)
  • Published : 2004.12.01
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Abstract

The present study was conducted to assess sperm characteristics in miniature-pig. The semen samples were transported to the laboratory at 17℃ within 3 hours after collection. The extended semen was stored at 17℃, and sperm quality was evaluated at 0, 1, 3, 5 and 7 days after storage. The semen volume of miniature-pig (62±22㎖) was significantly (p<0.05) lower than that of Duroc (155±25㎖) and Yorkshire (154±23㎖). Significant differences were also observed in sperm concentrations. During 3 days of storage, sperm viability did not differ among miniature-pig, Duroc and Yorkshire. However, the viability was significantly (p<0.05) lower in miniature-pig than in Duroc and Yorkshire semen after Day 3 of storage. In abnormality, acrosome intactness and intensity, there were no differences among miniature-pig, Duroc and Yorkshire semen. On the other hand, the viability of frozen-thawed sperm in miniature-pig was significantly (p<0.05) lower than in that of Duroc and Yorkshire. This study also examined CTC patterns in frozen-thawed spermatozoa. The rates of AR pattern were higher in miniature-pig than in Duroc and Yorkshire. However, no difference was found in F, B and AR patterns. The results of present study suggest that further research is necessary to develop of semen extender and freezing methods to improve sperm quality in miniature-pig.

Keywords

References

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