How do you use vitamin feed? Many people are wondering about this problem. After all, there are many kinds of vitamins, each with its own different effects. Even many vitamins have more than one use. In addition to vitamin feed supplements, there are many things to be aware of. If you don't pay attention to these, your vitamin feed will not work. Even if it is counterproductive, it will have more serious consequences. This article will explain in detail the precautions for vitamin feed.