搜索结果: 1-1 共查到“畜牧学 Energy and Protein Requirements”相关记录1条 . 查询时间(0.078 秒)
Past and Present Definitions of the Energy and Protein Requirements of Ruminants
Cattle Sheep Nutrient Requirements Energy Protein Feed Value
2016/4/13
The genesis of methods for defining the nutritional value of feeds and the nutrient requirements of animals, and their development in the late 19th and early 20th centuries in Europe and the USA are o...