摘要
试验旨在探讨蛋鸡日粮中添加桑叶粉的适宜比例,为桑叶饲料资源在蛋鸡上的开发利用提供参考依据。选用600只32周龄罗曼褐蛋鸡,随机分成4个试验组和1个对照组,每组6个重复,每个重复20只。各试验组用桑叶粉分别代替基础日粮的2%、4%、6%和8%,试验期为42 d。测定分析蛋鸡的血液生化指标及产蛋性能的相关参数,结果表明:日粮中添加桑叶粉可极显著提高蛋黄色泽(P<0.01);桑叶粉添加量达8%时,总蛋白、球蛋白及白蛋白水平显著下降(P<0.05),产蛋量和采食量极显著下降(P<0.01);日粮中添加桑叶粉对胆固醇、高密度脂蛋白、低密度脂蛋白、蛋黄重量、蛋壳厚度及蛋壳强度等无显著影响(P>0.05)。结果提示,桑叶作为一种植物蛋白饲料在蛋鸡日粮中的添加比例不宜超过4%。
This experiment was conducted to investigate the suitable proportion of mulberry powder used in diets of laying hens and provide the references for the development and utilization of mulberry powder on feed resources. Six hundreds Luoman brown layers were selected and randomly divided into 4 trial groups and 1 control group. Each group includes 6 replicates and each replicate has 20 sam- pies. Trial groups were fed with based diet with 2%, 4% 6% and 8% mulberry powder. Control group was fed with based diets only. The experiment lasted 42 days to study the blood biochemical index of laying hens and the quality of egg. The results showed that yolk color of 4 trial groups are significantly higher than those of control group （P〈0.01）. The level of total protein （TP）, globulin （GLB） and albu- min （ALB） of trial group with 8% mulberry powder is lower than the control （P〈0.05）,and the level of the food consumption and egg production is significantly decreased （P〈0.01）. It has no significant ef- fect on cholesterol （CHOL）, high density lipoprotein （HDL）, low density lipoprotein （LDL）, yolk weight, eggshell thickness and eggshell intensity （P〉0.05）. The results suggest that mulberry, as protein feed resource, its suitable proportion should not exceeded 4% of the based diets of laying hens.
出处
《饲料工业》
北大核心
2014年第7期36-38,共3页
Feed Industry
基金
现代农业产业技术体系专项[No.CARS-22]
关键词
桑叶粉
蛋鸡
血液生化指标
产蛋性能
蛋品质
mulberry powder
laying hens
blood biochemical index
laying performance
egg quality
