摘要
文章旨在研究不同饲料粉碎粒度及粒度分布对蛋鸡生产性能和蛋品质的影响。选取216只46周龄健康海兰灰蛋鸡,随机分为9组,每组3个重复,每个重复8只鸡。将玉米、豆粕分别用4.50、6.00、8.00 mm孔径筛片粉碎,两两交互后配制饲粮。将配制的饲粮饲喂海兰灰蛋鸡7周,研究不同饲料粉碎粒度及粒度分布对蛋鸡生产性能和蛋品质的影响。结果表明:玉米粒度和豆粕粒度及其交互作用对日采食量均有显著影响(P<0.05);玉米粒度对体增重有显著影响(P<0.05),对日产蛋率和料蛋比均无显著影响(P>0.05);豆粕粒度对日产蛋率、料蛋比和体增重均无显著影响(P>0.05);玉米粒度和豆粕粒度的交互作用对日产蛋率、料蛋比均无显著影响(P>0.05),对体增重有显著影响(P<0.05);饲料粉碎粒度对蛋重、蛋形指数、蛋比重、哈氏单位、蛋黄指数和蛋壳厚度均无显著影响(P>0.05);在试验条件下,综合考虑各项指标,玉米-豆粕型饲粮中最适蛋鸡生产的饲料粒度为玉米粉碎后通过8.00 mm筛孔,豆粕粉碎后通过4.50 mm筛孔。
The experiment was conducted to study the effects of feed particle size and distribution on the performance and egg quality of laying hens. A total of 216 Highland gray hens of 46 weeks old were randomly allocated to 9 groups with 3 replicates per group and 8 hens per replicate.Corn, soybean meal were crushed by 4.50, 6.00, 8.00 mm aperture sieve, after pairwise interaction formulated diets. The experiment lasted for 7 weeks, during the experiment record and measure effects of feed particle size and distribution on the performance and egg quality of laying hens. The results showed that：Corn and soybean meal particle size had a significant effect （P〈0.05） on daily feed intake, corn and soybean meal particle size on the daily feed intake have interaction （P〈0.05）; Corn particle weight gain had a significant effect （P〈0.05）, on daily egg production and feed egg ratio of no significant impact（P〉0.05）; soybean meal particle size on the daily egg production,feed egg ratio and weight gain no significant impact（P〉0.05）; Particle size of corn and soybean meal to daily egg production and feed egg ratio was no interaction（P〉0.05） but weight gain（P〈0.05）; Particle size of feed for egg weight, egg shape index, egg specific gravity,haugh unit, yolk index and shell thickness had no significance（P〉 0.05）; Under the experimental conditions, considering the indicators, corn - soybean meal diet of lay ing hens appropriate particle size of corn crushed by 8.00 mm ing by 4.50 mm sieve.
出处
《饲料工业》
北大核心
2015年第17期18-22,共5页
Feed Industry
关键词
粉碎粒度
粒度分布
蛋鸡
生产性能
蛋品质
particle size
particle size distribution
laying hens
performance
egg quality
