Effect of Betaine on the Regulation of the Lipid Metabolism in Laying Hen

<正> 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 re-spectirely. 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