饲料研究2024，Vol.47Issue(23)：41-46,6.DOI:10.13557/j.cnki.issn1002-2813.2024.23.009
饲粮代谢能和粗蛋白水平对坝上长尾鸡产蛋性能的影响研究
Effects of dietary metabolic energy and crude protein levels on laying performance of Ba-shang long-tailed chickens
摘要
Abstract
This experiment was conducted to study the effects of dietary metabolic energy and crude protein levels on the laying performance of Ba-shang long-tailed chickens.A 3×3 two factorial design was employed,with protein levels of 15.5%,16.0%,and 16.5%and energy levels of 11.87,11.47,and 11.07 MJ/kg respectively.A total of 216 Ba-shang long-tailed chickens at the age of 40 weeks were randomly allocated into nine treatments,with four replicates per treatment and six chickens per replicate.The pre-test period was one week and formal test period was 23 weeks.The results showed that dietary crude protein level had no significant impact on production performance(P>0.05).A metabolizable energy of 11.07 MJ/kg significantly increased the laying rate,average daily egg production,and average daily feed intake(P<0.05),while reducing the feed-to-egg ratio(P<0.05).A protein level of 15.5%significantly improved the apparent digestibility of energy(P<0.05).The results show that the group of Ba-shang long-tail chickens with 11.07 MJ/kg metabolic energy and 15.5%crude protein had the best production performance and nutrient apparent metabolic rate.关键词
坝上长尾鸡/代谢能/粗蛋白/生产性能/蛋品质Key words
Ba-shang long-tailed chickens/metabolic energy/crude protein/production performance/egg quality分类
农业科技引用本文复制引用
刘芳宇,赵一帆,王嘉睿,李一凡,李文硕,赵国先,郝艳霜..饲粮代谢能和粗蛋白水平对坝上长尾鸡产蛋性能的影响研究[J].饲料研究,2024,47(23):41-46,6.基金项目
河北省自然科学基金面上项目(项目编号:C2023204267) （项目编号:C2023204267）
河北农业大学大学生创新创业培育项目(项目编号:C2024045) （项目编号:C2024045）
