饲料研究2025，Vol.48Issue(11)：17-21,5.DOI:10.13557/j.cnki.issn1002-2813.2025.11.004
乳酸菌对大针茅青贮发酵品质的影响及饲喂效果评价
Effects of lactic acid bacteria on fermentation quality of Stipa grandis silage and evaluation of feeding efficacy
摘要
Abstract
The experiment aims to improve the silage quality of Stipa grandis and the utilization rate of livestock.Silage was prepared using Lactobacillus plantarum isolated from deer and Lactobacillus buchneri isolated from grasses.Sensory evaluation,fermentation quality,and nutritional content analyses were conducted.The silage was compared with baled hay in feeding trials involving lactating ewes.Thirty healthy 3-year-old Ujimqin lactating ewes with similar body weight and lambing dates,along with their 30 suckling lambs,were randomly divided into two groups(15 ewe-lamb pairs per group).Ewes were fed different roughages:The silage group received Stipa grandis silage,while the hay group received baled hay.The pre-test period was 10 days and the formal test period was 35 days.Results showed that the Stipa grandis silage co-fermented with Lactobacillus plantarum and Lactobacillus buchneri achieved'excellent'grade based on sensory and fermentation quality assessments.Compared with fresh Stipa grandis,the concentrations of neutral detergent fiber(NDF),acid detergent fiber(ADF)and acid detergent lignin(ADL)in the Stipa grandis silage decreased by 9.11％,7.67％and 26.68％,respectively.The average daily dry matter intake of ewes in the silage group was significantly higher than that in the hay group(P＜0.05),and the feed conversion ratio was significantly lower than that in the hay group(P＜0.05).The average daily weight gain of lambs in the silage group was 19.60％ higher than that in the hay group(P＜0.05).This study shows that through the combined fermentation of Lactobacillus plantarum and Lactobacillus brucella,the feeding quality and palatability of Stipa grandis can be significantly improved,and the growth performance of ewes and lambs can be enhanced.关键词
大针茅青贮/乳酸菌/发酵品质/采食量/平均日增重Key words
Stipa grandis silage/lactic acid bacteria/fermentation quality/feed intake/average daily gain分类
农业科技引用本文复制引用
余小红,德庆哈拉,乌达巴拉其其格,刘晗璐,张海华,塔娜..乳酸菌对大针茅青贮发酵品质的影响及饲喂效果评价[J].饲料研究,2025,48(11):17-21,5.基金项目
内蒙古自治区科技计划项目(项目编号:2022YFDZ0072、2021GG0054) （项目编号:2022YFDZ0072、2021GG0054）
内蒙古赤峰市自然科学基金 （）
