饲料研究2025，Vol.48Issue(11)：12-16,5.DOI:10.13557/j.cnki.issn1002-2813.2025.11.003
丝兰提取物对育肥牛生产性能、瘤胃发酵、氮排放、免疫及抗氧化能力的影响
Effects of Yucca extract on production performance,rumen fermentation,nitrogen emission,immune,and antioxidant capacity of finishing cattle
摘要
Abstract
This study aimed to investigate the effects of dietary supplementation with Yucca extract on the production performance,nutrient apparent digestibility,nitrogen emission,immune,and antioxidant capacities in finishing cattle.Two pens of Simmental cattle in the late finishing stage with similar body weights were selected,with each pen serving as one group(24 replicates per group,one cattle per replicate).The control group was fed a basal diet,while the experimental group received the basal diet supplemented with 4 g/(head·d)of Yucca extract.The pre-test period is one week and the formal test period is nine weeks.Results showed that the final body weight and average daily gain of cattle in the experimental group were extremely higher than those in the control group(P＜0.01),and the feed-to-gain ratio was extremely lower(P＜0.01).The apparent digestibility of neutral detergent fiber in the experimental group was extremely higher(P＜0.01).Nitrogen retention and nitrogen utilization efficiency were significantly improved in the experimental group(P＜0.05).The concentrations of ruminal propionic acid and total volatile fatty acids were extremely increased in the experimental group(P＜0.05).Compared to the control group,the plasma total antioxidant capacity of the experimental group was significantly reduced(P＜0.05),while plasma immunoglobulin G content was significantly elevated(P＜0.05).This study shows that Yucca extract can enhance the growth performance and apparent nutrient digestibility of beef cattle,increase nitrogen deposition and nitrogen utilization rate,improve immunity and antioxidant capacity,strengthen rumen fermentation function.关键词
丝兰提取物/育肥牛/生产性能/免疫/抗氧化/氮排放Key words
Yucca extract/finishing cattle/production performance/immune/antioxidation/nitrogen emission分类
农业科技引用本文复制引用
王亚男,许翊冉,唐昭晖,周英昊,宋连杰,李素霞,郭建军,张洪伟..丝兰提取物对育肥牛生产性能、瘤胃发酵、氮排放、免疫及抗氧化能力的影响[J].饲料研究,2025,48(11):12-16,5.基金项目
河北省引进国外智力项目——肉牛绿色高效养殖技术 （）
河北省三期现代农业产业技术体系肉牛创新团队承德综合试验站(项目编号:HBCT2024240402) （项目编号:HBCT2024240402）
承德国家可持续发展议程创新示范区建设科技专项(项目编号:202104F026C、202202F016) （项目编号:202104F026C、202202F016）
承德市科技计划项目(项目编号:202305B049) （项目编号:202305B049）
