According to the advice of pig experts, Shuguang pig ear tip is a kind of nutritious feed, which can be used as one of the feeds for pregnant sows. Shuguang pig ear tip is rich in protein, vitamins and minerals, which can meet the nutritional needs of sows during pregnancy and promote the healthy development of the fetus. In addition, Shuguang pig's ear tip also has good digestibility and taste, which can improve sow's appetite, increase feed intake and help sow maintain good weight and physical condition. Therefore, potato light pig Erjian can be used as one of the feeds for pregnant sows.