The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks

文献类型： 外文期刊

第一作者： Jiang, G.

作者： Jiang, G.;Wu, D.;Dai, Q.;Jiang, G.;Li, C.;Huang, X.;Zhang, X.;WangX;Dai, Q.;Jiang, G.;Li, C.;Huang, X.;Zhang, X.;Hu, Y.;WangX;Dai, Q.

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关键词： Linwu duck; threonine requirement; growth performance; carcass traits; biochemical parameters

期刊名称：BRAZILIAN JOURNAL OF POULTRY SCIENCE （ 影响因子：0.826； 五年影响因子：1.178 ）

ISSN： 1516-635X

年卷期： 2018 年 20 卷 2 期

页码：

收录情况： SCI

摘要： This study was conducted to establish dietary threonine (Thr) levels for Linwu ducks, aged 4 to 8 wk. Experimental diets formulated to contain 0.56, 0.61, 0.66, 0.71, 0.76, and 0.81 % Thr fed to Linwu ducks. A total of 360 healthy Linwu female ducks with similar body weight (1183.89 +/- 3.83 g) were randomly divided into six groups, with five replicates in each group, and 12 ducks in each replicate. Samples were collected at 8 wk for the determination of growth performance, carcass traits, visceral organ indices, and serum biochemical parameters. As a result of this study, Thr level had no significant influence on the final weight, the daily gain, feed/gain ratio, and average daily intake (p>0.05). Similarly, there were no significant effects of dietary Thr on carcass traits and visceral organ indices (p>0.05). The pancreatic index was highest among all the treatments when the dietary Thr level was 0.66%. The different dietary Thr levels had no significant effect (p>0.05) on the concentration of total protein (TP), triglyceride (TG), total cholesterol (TC), glucose (GLU), superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), and glutathione (GSH). However, the serum MDA concentration in the 0.66% treatment was lower (P=0.068) than in the other treatments. In conclusion, Thr at 0.66% concentration may have an antioxidant activity and exert positive effect on Linwu ducks.

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