中国农业科学（英文版）2002，Vol.1Issue(9)：1043-1049,7.
Effect of Betaine on the Regulation of the Lipid Metabolism in Laying Hen
Effect of Betaine on the Regulation of the Lipid Metabolism in Laying Hen
摘要
Abstract
The experiment was conducted to investigate the effects of betaine on lipid metabolism of laying hens. 1 600 ISA brown laying hens of 20 weeks of age were alloted randomly into 4 groups each with 4 replicates of 100 layers, the layers were given a corn-soybean basal diet with 0,400,600 and 800 mg/kg betaine respectirely. Results indicated that supplementation of 600 mg/kg betaine significantly improved lay performance, and increased egg production 8.67 % ( P ＜ 0.04), decreased feed/egg ratio by 9.02 % ( P ＜ 0.03) compared with control, but there were no significant differences in egg weight and feed intake. It was found that supplementation of 600 mg/kg betaine decreased weights of abdominal fat by 19.63 % (P ＜ 0.02)and 22.35%(P＜0.02), and decreased liver fat by 8.52%(P＜0.05) and 16.28%(P＜0.01) in 50 and 70 weeks of age respectively. Compared with control, in 70 weeks of age, activity of LPL in abdominal fat was decreased by 44.83% (P ＜ 0.01), HSL activity in abdominal fat increased by 50.0% (P ＜ 0.02), and MDH activity in liver was decreased by 28.74% (P＜0.03). Supplementation of 600 betaine increased levels of T3 by 43.29%( P ＜ 0.05) and 43.95 % ( P ＜ 0.02) in 50 and 70 weeks of age respectively, and increased the concentration of cAMP in hypothalamus and anterior pituitary by 59.89% ( P ＜ 0.01) and 24.03% ( P ＜ 0.05) respectively in 70 weeks of age. The concentration of serum gluclose (GLU) , FFA and phospholipid were increased by 44.50% (P＜0.03), 19.66%(P＜0.03) and 71.66% (P＜0.01) in 50 weeks of age. The concentration of serum gluclose (GLU), FFA and phospholipid were increased by 16.25% ( P ＜ 0.05), 22.51% ( P ＜ 0.02) and 22.42%(P＜0.01) in 70 weeks of age.关键词
Hen/Betaine/Lipid metabolismKey words
Hen/Betaine/Lipid metabolism引用本文复制引用
ZOU Xiao-ting,LU Jian-jun..Effect of Betaine on the Regulation of the Lipid Metabolism in Laying Hen[J].中国农业科学（英文版）,2002,1(9):1043-1049,7.基金项目
This project was supported by Zhejing Science and Technology Commission Fund (981102018 ). （981102018 ）
