Reproductive and Developmental Biology

The Korean Society of Animal Reproduction (한국동물번식학회)
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Superovulation Response by FSH Treatments in Hanwoo

FSH 투여 용량과 방법Ul 따른 한우의 과배란 처리 효율

  • Choi, Soo-Ho (Kyoungbuk National Livestock Research Institute) ;
  • Park, Yong-Soo (Kyoungbuk National Livestock Research Institute) ;
  • Son, Woo-Jin (College of Veterinary Medicine College of Agriculture and Life Science, Gyeongsang National University) ;
  • Lee, Joon-Hee (Division of Applied Life Science, College of Agriculture and Life Science, Gyeongsang National University) ;
  • Rho, Gyu-Jin (College of Veterinary Medicine College of Agriculture and Life Science, Gyeongsang National University) ;
  • Kim, Joo-Heon (College of Veterinary Medicine College of Agriculture and Life Science, Gyeongsang National University) ;
  • Choe, Sang-Yong (College of Veterinary Medicine College of Agriculture and Life Science, Gyeongsang National University)
  • 최수호 (경상북도 축산기술연구소) ;
  • 박용수 (경상북도 축산기술연구소) ;
  • 손우진 (경상대학교 수의과대학) ;
  • 이준희 (경상대학교 농업생명과학대학) ;
  • 노규진 (경상대학교 수의과대학) ;
  • 김주헌 (경상대학교 수의과대학) ;
  • 최상용 (경상대학교 수의과대학)
  • Published : 2007.09.30
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Abstract

The present study was carried out to assess the effect of superovulation response and efficiency of embryo production induced with injection of FSH dissolved in polyethylene glycol (PEG) in Hanwoo. Eighty-eight cows were divided into four groups. In group 1, cattle were intramuscularly treated with twice-daily administration of 50mg FSH for 4 days. Group 2 and 3 were subcutaneously single injection of 400mg and 200mg FSH dissolved in 30% PEG, respectively. Group 4 were subcutaneously single injection of 200 mg FSH dissolved in 30% PEG at 7 day after CIDR insertion. The number of corpus luteum (CL) in group 2 resulted in significantly (p<0.05) higher compared to group 1, 3 and 4 (18.5 vs. 11.2, 13.1 and 13.9, respectively). However, the number of total ova $(7.9{\sim}10.4)$, transferable embryos $(3.7{\sim}4.7)$, degenerate embryos $(1.9{\sim}3.5)$ and unfertilized ova $(1.8{\sim}2.7)$ did not differ among treatment groups. No difference was observed in pregnancy rate after transferring the recovered embryos among groups $(36.0{\sim}50.0%)$. In addition, blood progesterone concentrations at embryo recovery did not differ among all groups. In conclusion, although no differences were observed in the number of total ova, transferable embryos and pregnancy rate after transfer, a single injection of reduced dose of FSH (200mg FSH) at 7 day after CIDR insertion is more practical for superovulation treatments than frequent injection because of reduction of stress in Hanwoo and decreases of cost and laber.

본 실험은 polyethylene glycol (PEG)에 용해시킨 FSH의 투여 방법과 용량에 따른 체내 수정란 생산 효율을 난소 반응과 회수되는 수정란의 수량과 품질, 수정란 이식 효율을 조사하였다. 공란우 88마리를 네 군으로 구분하였다. 처리 1군은 50mg의 FSH를 하루 2회 4일 동안 투여하였으며, 처리 2 및 3군은 30% PEG에 녹인 400mg과 200mg의 FSH용량을 1회 투여하였으며, 처리 4군은 CIDR로 처리 후 7일째에 30% PEG에 녹인 200mg의 FSH를 처리하였다. 과배란 처리 후 황체수에서는 처리 1, 2, 3 및 4군에서 각각 11.2, 18.5, 13.1 및 13.9개로서, 처리 2군에서 다른 처리군보다 유의적으로 (p<0.05) 높았다. 회수된 난자의 총 수에서 각 군의 결과는 8.5, 10.4, 8.7 및 7.9개였으며, 이식 가능한 수정란 수에서 각 군의 결과는 3.9, 4.3, 4.7 및 3.7개로 군간의 유의적인 차이는 보이지 않았다. 각 과배란 처리 방법에 따라 생산된 수정란의 이식 후 수태율 $36.0{\sim}50.0%)$ 및 채란시 혈중 progesterone 농도 또한 군간의 유의적인 차이는 보이지 않았다. 결론적으로 공란우에 스트레스를 적게 주며 과배란 처리 호르몬 비용과 노동력을 줄일 수 있으며, 여러 마리의 공란우를 발정 주기에 상관없이 한번에 과배란 처리를 할 수 있는 CIDR를 사용 후 7일째 200mg의 FSH를 1회 투여 방법이 축산 현장에서 적용하기에 매우 유용한 방법이라 사료된다.

Keywords

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