Effect of Lipopolysaccharides Treatment on Uterine Involution in Dairy Cows with Retained Placenta

후산정체 젖소에 있어서 Lipopolysaccharide의 처리가 자궁 회복에 미치는 영향

  • Baek, K.S. (National Livestock Research Institute, R.D.A.) ;
  • Park, S.J. (National Livestock Research Institute, R.D.A.) ;
  • Park, S.B. (National Livestock Research Institute, R.D.A.) ;
  • Lee, W.S. (National Livestock Research Institute, R.D.A.) ;
  • Kim, H.S. (National Livestock Research Institute, R.D.A.) ;
  • Jeong, G.Y. (National Livestock Research Institute, R.D.A.) ;
  • Ki, K.S. (National Livestock Research Institute, R.D.A.) ;
  • Suh, G.H. (National Livestock Research Institute, R.D.A.) ;
  • Jeon, B.S. (National Livestock Research Institute, R.D.A.) ;
  • Ahn, B.S. (National Livestock Research Institute, R.D.A.) ;
  • Kim, T.I. (National Livestock Research Institute, R.D.A.)
  • 백광수 (농촌진흥청 축산연구소 낙농과) ;
  • 박성재 (농촌진흥청 축산연구소 낙농과) ;
  • 박수봉 (농촌진흥청 축산연구소 낙농과) ;
  • 이왕식 (농촌진흥청 축산연구소 낙농과) ;
  • 김현섭 (농촌진흥청 축산연구소 낙농과) ;
  • 정경용 (농촌진흥청 축산연구소 낙농과) ;
  • 기광석 (농촌진흥청 축산연구소 낙농과) ;
  • 서국현 (농촌진흥청 축산연구소 낙농과) ;
  • 전병순 (농촌진흥청 축산연구소 낙농과) ;
  • 안병석 (농촌진흥청 축산연구소 낙농과) ;
  • 김태일 (농촌진흥청 축산연구소 낙농과)
  • Published : 2006.09.30

Abstract

This study was carried out to investigate the effect of intra-uterine infusion of lipopolysaccharides (LPS) on uterine involution in dairy cows with retained placenta. The LPS isolated from Bacteroides helcogenes and Fusobaoterium varium was infused at the rate of 100 ug (n=11) and 200 ug (n=11) with 30 ml of phosphate buffer saline in each cow at 20 days post-partum. The cows in conrol group (n=11) with retained placenta were infused with 30 ml phosphate buffer saline in each cow at 20 days postpartum. Cross-sectional ultrasonography was performed at days 40 postpartum to examine uterine involution and exudate in the all dairy cows in study. The cows in control group have shown 45.5, 27.3 and 27.3% gravid horn with less than 30 mm (normal), $31{\sim}50mm$ (medium) and more than 51 mm (large) in diameter. Respective average values of gravid horn diameter in cows treated with LPS 200 ug were noticed 72.7, 18.2 and 9.1%. However, the gravid horn diameter in all the cows treated with 100 ug of LPS was less than 30 mm. The 18.2, 63.6 and 54.6% cows in the control, LPS 100 ug and LPS 200 ug, respectively, have shown no exudate in uterine cavity. However, the respective rates of small amount of exudate retention in uterine cavity were 45.5, 0.0, and 9.1%. Approximately 36.4% cows in all 3 treated groups have shown minute quantity of exudate. In conclusion, the LPS intra-uterine infusion promoted postpartum uterine involution in dairy cows with retained placenta.

본 연구는 후산정체 젖소에 있어서 Lipopolysaccharide의 처리가 자궁 회복에 미치는 영향을 조사하기 위하여 2004년부터 2005년까지 2년간에 걸쳐 축산연구소와 전문 경영체 농장에서 사육중인 홀스타인 착유우 중 분만 후 12시간이 경과하여도 태반이 배출되지 않았던 후산정체우 33두를 대상으로 LPS $100{\mu}g$구, LPS $200{\mu}g$구 및 대조구 각각 11두씩을 공시하였으며 분만 후 20일째에 대조구는 PBS를, 처치구는 LPS를 자궁내에 주입하여 분만 후 40일째에 초음파 측정을 통하여 자궁의 크기 및 자궁내 삼출물의 저류 정도를 조사하여 다음과 같은 결과를 얻었다. 1.자궁각의 크기에 있어서 30 mm이하인 경우는 대조구 45.5%, LPS $100{\mu}g$구 100%, LPS $200{\mu}g$구 72.7%였고 $31{\sim}50mm$인 경우는 대조구 27.3%, LPS $100{\mu}g$구 0%, LPS $100{\mu}g$구 18.2%였으며 51 mm이상인 경우는 대조구 27.3%, LPS $100{\mu}g$구 0%, LPS $200{\mu}g$구 9.1%였다. 2. 삼출액의 저류 상태에 있어서 삼출액이 거의 없는 경우는 대조구 18.2%, LPS $100{\mu}g$구63.6%, LPS $200{\mu}g$구 54.6%였고 자궁강내에 삼출액이 소량 있는 경우는 대조구 36.4%, LPS $100{\mu}g$구 36.4%, LPS $200{\mu}g$구 36.4%였으며 자궁강내에 삼출액이 고여 있는 경우는 대조구 45.5%, LPS $100{\mu}g$구 0%, LPS $200{\mu}g$구 9.1%였다.

Keywords

References

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