日粮营养补添与粗饲料利用

Nutrient Supplementation in Ration to Improve Roughage Utilization

粗饲料的营养价值较低。通过适宜的日粮营养补添调控反刍动物瘤胃微生物区系的生长可提高粗饲料的利用效率。日粮营养补添包括 :改善日粮精粗比以增加能量供给 ;供给瘤胃氨态氮 ;补添蛋白 ;补添矿物元素 ;以及应用酸碱或缓冲盐。

Roughages are usually poor nutritive feeds for ruminants. Improving the growth of rumen microorganisms by supplementing some nutrients into ruminant's ration is an essential way to improve the nutritive value of roughage. Nutritional supplementing measures include controlling the concentrate and roughage ratio to increase energy supply, supplementation of ammonium nitrogen, protein, minerals, and acid and alkaline or buffering salt.