Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Amino Acid Balance of Dietary Casein and Soy Protein on the Plasma and Liver Cholesterol Levels in Young Chicks

사료중 Casein 및 대두단백질의 아미노산 균형이 병아리의 혈액 및 간조직내의 Cholesterol함량에 미치는 영향

  • 김현숙 (숙명여자대학교 식품영양학과) ;
  • 지규만 (고려대학교 응용동물과학과) ;
  • 최인숙 (고려대학교 응용동물과학과)
  • Published : 1995.03.01
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Abstract

Effects of dietary protein sources and their amino acid compositions on the liver and plasma cholesterol levels in growing Single Comb white Leghorn male chicks were studied. A diet containing isolated soy protein (21% cp) was supplemented with 0.5% DL-methionine and 0.3% L-glycine. and another diet containing casein(21% cp) was supplemented with 1.5% L-arginine HCl, 0.4% DL-methionine. and 1.0% L-glycine. Plasma cholesterol level was markedly lower in groups force-fed the diets containing either soy protein or casein supplemented with amino acids compared to those found in birds fed corresponding diets without amino acids supplementation. The cholesterol lowering effect of the casein diet. when balanced with various supplemental amino acids appeared to be due to arginine instead of methionine or glycine. It is likely that amino acid balance rather than the composition of a specific amino acid is one of the major factors determining the effect of dietary protein sources on the blood cholesterol levels in chicks.

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References

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