Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
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Effects of Dummy Cow or Teaser Bull for Semen Collection on Semen Characteristics in Hanwoo Proven Bull

한우 종모우에 있어 정액 채취시 의빈대 혹은 의빈우 이용이 정액성상에 미치는 영향

  • Lee S.S. (Cattle Genetic Improvement Center, NACF) ;
  • Jeong J. (Livestock Research Institute, NACF) ;
  • Park N.H. (Livestock Research Institute, NACF)
  • 이성수 (농협중앙회 가축개량사업소) ;
  • 정준 (농협중앙회 축산연구소) ;
  • 박노형 (농협중앙회 축산연구소)
  • Published : 2006.06.01
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Abstract

Thirty heads of proven bulls were used to identify the effects of mounting conditions (dummy cow vs. teaser bull) on semen characteristics in Hanwoo. Semen was collected from bulls daily two times with 1 h interval every $3{\sim}6$ days for 6 months. Bulls mounted dummy cow (BDC) had higher both the $1^{st}$ and the $2^{nd}$ sperm concentrations than in bulls mounted teaser bull (BTB), resulting in more total sperm number (p<0.05). The total sperm number in the $1^{st}$ collection was the highest in BDC with collection interval of 5 days. Total sperm number in the $1^{st}\;and\;2^{nd}$ collections tended to be more in the BDC of $4{\sim}5$ years old and BTB of $6{\sim}7$ years old. These results indicate that semen collection using dummy cow has a better effect than teaser bull on semen characteristics.

한우 종모우에 있어 정액 채취시 승가 조건(의빈우 혹은 의빈대)이 정액성상에 미치는 영향을 구명하기 위하여 의빈우 승가 종모우 21두, 의빈대승가 종모우 9두 등 보증 종모우 30두를 공시하여 연구하였다. 정액은 $3{\sim}6$일 간격으로 채취하였으며 채취 당일 1시간 간격으로 총 2회 정액 채취하여 6개월간 정액성상을 조사하였다. 의빈대 승가 종모우가 의빈우 승가 종모우보다 1차 및 2차 정자농도에 있어 유의적으로 높아(p<0.05) 1차 및 2차 총 정자수에서도 많았으며 특히 l차 총 정자수는 유의적으로 많게 나타났다(p<0.05). 종모우 승 가 조건(의빈대, 의빈우)에 상관없이 5일 간격으로 정액 채취시가 정액량이 많아(p<0.05) 총 정자수가 많았으며 의빈대를 이용하여 5일 간격으로 정액 채취시가 총 정자수가 다른 모든 처리군보다 많았다. 의빈대 승가 종모우는 $4{\sim}5$세에서 총 정자 수가 높게 나타났으며 의빈우 승가 종모우는 $6{\sim}7$세에서 총 정자수가 높게 나타났다(p<0.05). 이러한 결과로 미루어 볼 때 한우 종모우에서 의빈대를 이용하여 정액을 채취하는 것이 의빈우를 이용 할 때 보다 정액 생산성이 좋을 것으로 사료된다.

Keywords

References

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