nutritional requirement
1.Premary studies on the nutritional requirement in the vitamins and minerals of Panthera tigris amoyensis
2., which was compared with the trace element nutritional requirement of NRC(1998) and verdict the excess or the deficiency of the trace element for the typical ration , The results indicate the typical ration for pigs lacks Zn,Cu and Fe to different entent and needs to be added with these trace elements, Mn is enough and needs not to be supplementedIn Exp.
