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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2003;16(12): 1809-1815.
DOI: https://doi.org/10.5713/ajas.2003.1809    Published online January 1, 2003.
Effect of Yeast Chromium and L-carnitine on Lipid Metabolism of Broiler Chickens
Jundong Wang, Rong Du, Jian Qin, Shaolin Wang, Wenkui Wang, Hongquan Li, Quanhai Pang
Abstract
A 3횞4 (chromium and L-carnitine) experiment was designed to investigate the single and interactive effects of adding yeast Cr and L-carnitine to corn-soybean meal diets on lipid metabolism of broiler chickens. Four hundred and eighty one-day-old avian chickens were randomly allocated to 12 treatments of 40 each for 7 weeks. Levels of adding Cr were 0, 400, 600 mg/kg and those of L-carnitine was 0, 30, 50, 100 mg/kg, respectively. The result showed that adding 600 mg/kg Cr or 100 mg/kg L-carnitine alone had better regulative effects on fat and cholesterol metabolism than lower adding levels. Effects were more significant at the end of the experiment. There were significantly interactive effects between Cr and L-carnitine on triaclyglycerol, whole cholesterol, HDL, dissociating FFA, and blood glucose, cholesterol and triaclyglycerol of liver, and cholesterol of chest muscle at the end of experiment (p=0.0001-0.0315). But Cr or L-carnitine had no significant effect on growth performance of broiler chickens (p>0.05).
Keywords: Broiler Chickens; Cooperative Effect; Lipid Metabolism; L-carnitine; Yeast Chromium


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