The research measured nitrogen of expanding blood meals by KDN fashion, it is about 90%;

采用凯式定氮法，膨化血粉的粗蛋白含量为90%左右；

youdao

The research measured nitrogen of expanding blood meals by KDN fashion, it is about 90%;

采用凯式定氮法，膨化血粉的粗蛋白含量为90%左右；

youdao