한국가금학회지 (Korean Journal of Poultry Science)

  • 제38권1호
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  • Pages.37-43
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  • 2011
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  • 1225-6625(pISSN)
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  • 2287-5387(eISSN)
한국가금학회 (The Korean Society of Poultry Science)
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맹장 결찰계(Cecal-ligated Chicken)를 이용한 [15N]urea의 이용성에 관한 연구

A Study on the Utilization of Dietary [15N]urea in Cecal Ligated Chickens

  • 손장호 (대구교육대학교 실과교육과)
  • Son, Jang-Ho (Department of Practical Arts Education, Daegu National University of Education)
  • 투고 : 2010.11.16
  • 심사 : 2011.01.11
  • 발행 : 2011.03.31
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초록

본 연구는 맹장 결찰계를 이용하여서 [15N]urea의 이용성을 조사하였다. 질소의 balance 및 이용률은 맹장 결찰 수술에 의해서 높아지는 경향이 인정되었다. 이는 맹장 결찰 수술로 인한 요산 배설량의 유의한 감소로 인한 결과였다(사료 및 요소 유래 질소 이용률, P<0.01). 닭에 있어서 맹장 결찰 수술은 사료 유래 ammonia 배설량은 증가(P<0.01), 요소 유래 ammonia배설량은 감소(P<0.01)시켰다. 요소 유래, 요소질소의 배설량은 맹장 결찰 수술에 의해서 유의하게 증가하였지만(P<0.01), 맹장 결찰계도 5% 단백질 사료와 같이 급여한 요소를 51.6%정도 이용하는 것으로 나타났다. 결론적으로 닭에 있어서 단백질 수준이 결핍된 사료와 같이 급여된 요소의 이용에 있어서 맹장은 유의한 역할을 한다고 할 수 있다. 하지만 질소의 이용에 있어서는 반드시 긍정적인 역할만을 한다고는 결론내릴 수 없다.

The effect of cecal ligation on the utilization of dietary [15N]urea in chickens fed 5 % protein diet plus urea were investigated. Nitrogen balance and utilization tended (P<0.01) to increase by cecal ligation. Total uric acid excretion was significantly decrease by (P<0.01) cecal ligation in chickens from origin of diet and urea (P<0.01). Excretion of ammonia was increased in chickens from origin of diet, where as it decreased in chickens an urea diet (P<0.01). Amount of urea nitrogen excretion from origin of urea was significantly decrease (P<0.01) by cecal ligation, but cecal ligated chicken fed 5% protein diet with urea showed 51.6% urea utilization. Result obtained in present study indicates that ceca is having beneficial role for urea utilization in chicken fed protein deficient diets, but ceca do not always positive role for nitrogen utilization.

키워드

참고문헌

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