It is very important and necessary to develop resources of protein feeds because of shortage of fish meal and protein feeds in the world.

世界鱼粉供不应求，蛋白饲料日趋短缺，开发蛋白饲料资源势在必行。

youdao

It is very important and necessary to develop resources of protein feeds because of shortage of fish meal and protein feeds in the world.

世界鱼粉供不应求，蛋白饲料日趋短缺，开发蛋白饲料资源势在必行。

youdao