The Effects of Dietary Chitosan or Glucosamine HCl on Liver Lipid Concentrations and Fat Deposition in Broiler Chickens

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Dietary chitosan, a polymer of glucosamine, decrease the absorption of dietary fat and then reduce the abdominal fat deposition in broiler chickens. Chitosan is also digested and absorbed in the form of glucosamine by hens and broilers. Thus, in broiler chickens, dietary chitosan may decrease lipogenesis and triglyceride (TG) synthesis in the liver in addition to decrease fat absorption, consequently resulting in a reduction of body fat deposition. However, little research has been done to determine whether dietary glucosamine decreases hepatic TG synthesis and body fat deposition in broiler chickens. The present experiment was conducted to determine the effects of dietary chitosan or glucosamine HCl on fat absorption, hepatic TG contents and body fat deposition in broiler chickens. Broiler chickens at 14d old were fed on a control diet based on corn and soybean meal or diets containing 5% chitosan or glucosamine HCl for 3 weeks. Dietary chitosan and glucosamine HCl did not affect feed intake, body weight gain, feed efficiency and breast muscle weight. Dietary chitosan significantly (P<0.05) decreased fat digestibility, the contents of total lipid and triglyceride in the liver and abdominal fat weight. The concentration of plasma very low density lipoproteins (VLDL) tended to decrease in broilers fed on the chitosan diet. Dietary glucosamine HCl significantly (P<0.05) reduced hepatic total lipid and triglyceride contents, plasma VLDL concentration and abdominal fat deposition with no influence on fat digestibility. These results suggest that dietary chitosan may decrease the body fat deposition by reducing intestinal fat absorption and hepatic TG synthesis and dietary glucosamine may decrease the body fat deposition by reducing hepatic TG synthesis in broiler chickens.

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  • The journal of poultry science  

    The journal of poultry science 43(2), 156-161, 2006-04-25 

    日本家禽学会

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各種コード

  • NII論文ID(NAID)
    10018128273
  • NII書誌ID(NCID)
    AA11564513
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13467395
  • NDL 記事登録ID
    7893842
  • NDL 雑誌分類
    ZR22(科学技術--農林水産--畜産)
  • NDL 請求記号
    Z54-J694
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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