不同核黄素添加量对新扬州仔鸡生长性能和血液生化指标的影响

Effecs of riboflavin supplementation on growth performance and serum biochemical indexes in New Yangzhou chickens

选用288只体重相近新扬州1日龄雏鸡,随机分成4组,每组3个重复,分别饲喂4种不同核黄素添加量(0、3.6、7.2mg/kg和14.4mg/kg)日粮,探讨核黄素添加量对新扬州仔鸡生长性能和血液生化指标的影响。结果表明:(1)核黄素能够增加新扬州仔鸡平均体重,但差异不显著(P﹥0.05),7.2mg/kg和14.4mg/kg核黄素添加量能够降低腿病发生率和死亡率。(2)新扬州仔鸡血液谷胱甘肽还原酶含量与核黄素添加量呈显著或极显著递减趋势。(3)核黄素添加量能够提高血清总蛋白、白蛋白和球蛋白含量以及谷草转氨酶和谷丙转氨酶活性,14.4mg/kg核黄素添加量显著增加56日龄新扬州仔鸡血清总蛋白和球蛋白含量(P﹤0.05)。

The effects of riboflavin supplementations on growth performance and serum biochemical indexes of New Yangzhou chickens were investigated.Two hundred and eighty eighty-day-old chickens were randomly divided into 4 groups with 3 replicates each group,which were fed diets with 4 different riboflavin supplementations of 0,3.6,7.2 mg/kg and 14.4 mg/kg.The results showed that：（ 1 ）The different riboflavin supplementations could increase the average weight of New Yangzhou chiekens（P 〉 0.05） ,and the leg paralysis occurrence and mortality rate were greatly reduced in 7.2 mg/kg and 14.4 mg/kg riboflavin treatments. （2）The contents of glutathione reductase activity in serum significantly decreased with increasing of riboflavin supplementations. （3）The different riboflavin supplementations could increase the contents of total proteins,albumin and globulins,and the aetivities of glutamic oxaloaeetic transaminase and alanine transaminase in serum of chickens.14.4 mg/kg riboflavin supplemention eould significantly increase the contents of serum total proteins and serum globulins in New Yangzhou chicks on 56 days old.