The effect of alfalfa hay meal partially substituted for complete diets on performance and economic profit in feeding Duroc swine was investigated in order to study a proper feeding amount of alfalfa hay meal for pure breed Duroc swine.

• 为探讨紫花苜蓿草粉在纯种杜洛克猪中的适宜添加量,考察了苜蓿草粉替代部分杜洛克猪全价日粮对其生长性能及经济效益的影响。