饲料研究2025，Vol.48Issue(12)：12-16,5.DOI:10.13557/j.cnki.issn1002-2813.2025.12.003
饲粮精粗比对沂蒙黑山羊生长性能、养分表观消化率及瘤胃发酵参数的影响
Effects of dietary concentrate to forage ratio on growth performance,nutrient apparent digestibility,and rumen fermentation parameters in Yimeng Black goats
摘要
Abstract
The study aimed to investigate the effects of total mixed rations with different concentrate to forage ratios based on unconventional feed combinations on the growth performance,nutrient apparent digestibility,rumen fermentation parameters,and serum biochemical indices in Yimeng Black goats.A total of 54 healthy Yimeng Black ewes were randomly divided into three groups,with three replicates per group and six goats per replicate.The dietary concentrate to forage ratios for the three groups were 3∶7(group Ⅰ),4∶6(group Ⅱ),and 5∶5(group Ⅲ),respectively.The pre-test period was 10 days and the formal test period was 60 days.The results showed that the average daily feed intake of group Ⅱ was significantly higher than that of group Ⅰ(P＜0.05).The apparent digestibility of dry matter,crude protein,neutral detergent fiber,acid detergent fiber,and crude ash in groups Ⅱ and Ⅲ were significantly higher than in group Ⅰ(P＜0.05).The ruminal acetate content in group Ⅱ was extremely higher than in groups Ⅰ and Ⅲ(P＜0.01),and the total volatile fatty acid content was significantly higher than in groups Ⅰ and Ⅲ(P＜0.05).The serum total protein content in group Ⅲ was significantly lower than in group Ⅰ(P＜0.05).The serum urea nitrogen content in groups Ⅱ andⅢ was extremely lower than in group Ⅰ(P＜0.01).The serum total cholesterol content in group Ⅱ was extremely lower than in group Ⅰ(P＜0.01).The study indicates that a dietary concentrate to forage ratio of 4∶6 can better improve apparent digestibility of nutrients,increase ammonia nitrogen utilization,enhance rumen fermentation function,and achieve higher growth performance in Yimeng Black goats.关键词
饲粮精粗比/黑山羊/生长性能/养分表观消化率/瘤胃发酵/血清生化指标Key words
dietary concentrate to forage ratio/Black goats/growth performance/nutrient apparent digestibility/rumen fermentation/serum biochemical indices分类
农业科技引用本文复制引用
殷正艳,张永翠,徐云政,刘方圆,赵晓冬,尹作国,程光民..饲粮精粗比对沂蒙黑山羊生长性能、养分表观消化率及瘤胃发酵参数的影响[J].饲料研究,2025,48(12):12-16,5.基金项目
山东省羊产业技术体系项目(项目编号:SDAIT-10-04) （项目编号:SDAIT-10-04）
潍坊市科学技术发展规划项目(项目编号:2022GX024) （项目编号:2022GX024）
