日粮中添加胆碱对雏鸡脂肪肝的防治效果

Effect of Dietary Choline on the Fatty Liver of Chickens

研究了胆碱对雏鸡脂肪肝的预防及治疗效果。取一日龄艾维茵健雏190只,分成4个试验组:Ⅰ组为不添加胆碱的基础日粮组;Ⅱ组为添加胆碱量为800 mg/kg的日粮组;Ⅲ组为添加胆碱量为800 mg/kg的高能日粮组;Ⅳ组为高能日粮组,3周后,把Ⅳ组平均分成2组(新Ⅳ组及Ⅴ组),新Ⅳ组仍喂高能饲粮,Ⅴ组改喂Ⅱ组饲粮,试验期6周。结果表明,Ⅱ组雏鸡平均体质量高于Ⅰ组,且料肉比低于Ⅰ组;Ⅲ组与Ⅰ组比较,血清中脂肪酶活性增高且甘油三酯浓度增加;改变高能饲粮为胆碱日粮后,Ⅴ组雏鸡血清中脂肪酶活性比Ⅳ组增高,甘油三酯浓度降低;高能组雏鸡肝脏在显微镜下可见明显脂肪和空泡变性,改喂胆碱日粮后,病变减轻。日粮中添加胆碱可以提高雏鸡的生产性能,且对脂肪肝有防治效果。

The effects of choline on preventing and treating chicken fatty liver were investigated in the present study.A total of 190 one-day-old chickens were randomly divided into four groups,which were added with 0 mg/kg choline（group Ⅰ）,800 mg/kg choline（group Ⅱ）,high-energy diet with 800 mg/kg choline（group Ⅲ）,or High-energy diet（group Ⅳ）.Three weeks later,the group Ⅳ was divided into two groups,a new group Ⅳ and group Ⅴ,the former was still fed with high-energy diet and the latter was fed with the choline diet.There is a six-week trial pe-riod.The results showed that compared to the basic diet group,the average weights of group Ⅱwere higher than that of group Ⅰand both serum lipase activity and serum triglyceride concentrations of group Ⅲ increased.Compared to group Ⅳ,the serum lipase activity of group Ⅴ increased but the serum triglyceride concentrations decreased after dietary was changed.The livers of group Ⅳ showed apparent fat and vacuolar degeneration observed by microscope,and the lesions reduced after feeding choline diet.The results indicate that dietary of increased choline increased the production performances in chickens and can treat the fatty liver.