• Title/Summary/Keyword: 육계 사료

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육계사료내 마늘분말의 첨가 급여가 육계 성장과 콜레스테롤 대사에 미치는 영향

  • 유선종;신승철;김성권;박유헌;안병기;강창원
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2003.11a
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    • pp.75-76
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    • 2003

  • This experiment was conducted to evaluate the potential for dietary garlic powder(GP) on overall growth performances and cholesterol metabolism in broiler chickens. 1-d-old male chicks were fed diets containing 0 ％(with or without antibiotics), 1 ％, 3 ％ and 5％ GP for 6wk. Body weight gains in GP 3 ％ and 5 ％ groups were significantly higher than that of control without antibiotics. The content of tissue cholesterol in GP containing diet groups tended to be reduced as compared to those of control. The expression of hepatic HMG-CoA reductase mRNA was reduced consistently by dietary GP. IB antibody titer In chicks fed GP containing diets was significantly higher than control without antibiotics.

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Rare Earth as a Feed Additive for Broiler Growth (육계의 성장 촉진을 위한 사료 첨가제로서의 희토(稀土))

  • Ham, S.K.;Song, T.H.;Zhang, G.Q.;Hur, S.N.;Park, H.S.
    • Korean Journal of Poultry Science
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    • v.33 no.3
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    • pp.233-238
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    • 2006

  • In order to study the effect of feeding rare earth(RE) on growth of broiler chicks, feed conversion ratio, and probable harmfulness of feeding high levels of RE, two feeding trials with broiler chicks were conducted; one using a commercial broiler compound feed and the other using a self mixed feed excluding any growth stimulating feed additives. The the first trial used three hundred sixty of one day old Cobb broiler chicks for six levels of dietary supplementation of RE : 0, 100, 200, 400, 800 and 1,600 mg/kg. There were significant effect of RE stimulating broiler chick growth and improving feed conversion ratio, The dietary supplementation of RE at a level of 100 mg/kg was the best of all and increased body weight gain by 8.9% (p<0.05). Chicks fed RE at a level of 1,600 mg/kg grew as good as chicks fed feeds without RE and did not show my abnormalities. The second feeding trial was conducted in the same manner as the first trial using Ross broiler chicks and self-mixed experimental diets supplemented with RE at levels of 0, 50, 100 and 150 mg/kg. Differently from Results of the first trial, body weight gain and feed conversion ratio of were the best at the level of 50 mg/kg RE supplementation(p<0.05). In this trial all the birds fed RE showed significantly lower ratio of abdominal fat against live weight than those of the control group birds. Overall, it can be said that dietary supplementation of RE will improve broiler growth and feed conversion ratio and the proper dietary level would be $50\sim100mg/kg$. These results suggested that the proper level of RE for broiler chicks would be 50 to 100 mg/kg and its effectiveness is varied depending upon RE mixture. There appears abdominal fat of broiler chicks is decreased by feeding RE but further investigation is in need.

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