摘要
为了研究乳酸菌微生态制剂对奶牛饲料转化率的影响,选取360头胎次、泌乳天数、产奶量相近的健康荷斯坦牛,随机分为对照组和试验组,每组各180头进行饲喂试验。对照组饲喂基础日粮,试验组在此基础上添加30g/(头·d)的复合乳酸菌制剂,其中干酪乳杆菌(L.casei HM-09)和植物乳杆菌(L.plantarum HM-10)的活菌数均≥2.5×108 CFU/g,连续饲喂3周。结果表明,乳酸菌微生态制剂有提高产奶量及饲料转化率的趋势,且能够改善牛粪形态,更利于进行清理。
A total of 360 Holstein cows were selected to study the effects of combined Lactic Acid Bacteria (LAB) on the improvement of dairy feed conversion ratio. Each cow was added 30g/d of combined probiotics of Lactobacillus casei HM-09 and Lactobacillus plantarum HM-10 with the viable count of 2.5×108 CFU/g, and continued feeding for 3 weeks. The results indicated that feeding LAB could enhance the milk producition and food consumption of Holstein cows, increase the feed conversion ratio and improve faeces values and feed digestibility. Therefore, combined LAB could be used widely with the characteristic of improvment the feed conversion ratio of Holstein cows.
出处
《中国奶牛》
2014年第17期29-32,共4页
China Dairy Cattle
基金
农业部现代农业产业技术体系建设项目(CARS-37)
关键词
乳酸菌
产奶量
饲料转化率
Lactic acid bacteria
Milk producition
Feed conversion ratio
