摘要
选择60周龄的白来航产蛋鸡30只,分成3个组,各个组日粮中共轭亚油酸(CLA)的添加水平分别为0%、3%和6%,试验期30 d。结果表明,日粮中添加CLA对产蛋量、平均蛋重、料蛋比、产蛋率无显著影响(P>0.05),明显降低蛋黄中总单不饱和脂肪酸含量;但能增加总饱和脂肪酸、总多不饱和脂肪酸及CLA的含量。Ⅱ组20 d蛋黄中CLA含量达最大。总之,饲粮中添加CLA可生产出富含CLA的鸡蛋。
In a factorial experiment,thirty 60-week-old white Leghorn laying hens were divided randomly into to three groups.The diets of the three groups contained 0%,3% or 6% conjugated linoleic acid(CLA) respectively.The feeding test lasted 30 days.The results showed that the difference in egg amount,average egg weight,feed conversion and laying rate was not significant(P>(0.05));the content of total monounsaturated fatty acids in yolk was significantly decreased;however the content of total saturated fatty acids and total polyunsaturated fatty acids and CLA could be increased.In the group II fed with the diets containing 3%CLA for twenty day,the CLA concentration in yolk was the highest.Any way,CLA can be recommended as an ingredient of the diets for laying hens to produce eggs rich in CLA.
出处
《粮食与饲料工业》
CAS
北大核心
2005年第12期34-35,共2页
Cereal & Feed Industry
关键词
共轭亚油酸
生产性能
鸡蛋
conjugated linoleic acid
production performance
egg