Effects of chromium picolinate on fat deposition, activity and genetic expression of lipid metabolism-related enzymes in 21 day old Ross broilers

文献类型： 外文期刊

第一作者： Chen, Guangxin

作者： Chen, Guangxin;Chu, Wenhui;Li, Chunyi;Zhao, Haiping;Chen, Guangxin;Chu, Wenhui;Li, Chunyi;Zhao, Haiping;Chen, Guangxin;Gao, Zhenhua;Cao, Zan

作者机构：

关键词： Ross Broiler;Chromium Picolinate (CrP);Fatty Acid Synthase;Acetyl-CoA Carboxylase;Hormone-sensitive Lipase;Lipoprotein Lipase;Enzymatic Activity;mRNA Expression

期刊名称：ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES （ 影响因子：2.509； 五年影响因子：2.604 ）

ISSN： 1011-2367

年卷期： 2018 年 31 卷 4 期

页码：

收录情况： SCI

摘要： Objective: This experiment was conducted to investigate the effects of chromium picolinate (CrP) on fat deposition, genetic expression and enzymatic activity of lipid metabolism-related enzymes. Methods: Two hundred forty one-day-old Ross broilers were randomly divided into 5 groups with 4 replicates per group and 12 Ross broiler chicks per replicate. The normal control group was fed a basal diet, and the other groups fed the same basal diet supplemented with 0.1, 0.2, 0.4, and 0.8 mg/kg CrP respectively. The experiment lasted for 21 days. Results: Added CrP in the basal diet decreased the abdominal fat, had no effects on subcutaneous fat thickness and inter-muscular fat width; 0.2 mg/kg CrP significantly decreased the fatty acid synthase (FAS) enzymatic (p< 0.05); acetyl-CoA carboxylase (ACC) enzymatic activity decreased in all CrP groups (p< 0.05); hormone-sensitive lipase (HSL) enzymatic activity also decreased, but the change was not significant (p> 0.05); 0.4 mg/kg CrP group sig-nificantly decreased the lipoprotein lipase (LPL) enzymatic activity. FAS mRNA expression increased in all experimental groups, and the LPL mRNA expression significantly increased in all experimental groups (p< 0.05), but not 0.2 mg/kg CrP group. Conclusion: The results indicated that adding CrP in basal diet decreased the abdominal fat percentage, had no effects on subcutaneous fat thickness and inter-muscular fat width, decreased the enzymatic activity of FAS, ACC, LPL and HSL and increased the genetic expression levels of FAS and LPL.

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