Do you know what feed additives are? Next, let Xiaobian introduce it to you! (1) Growth-promoting additives: including olaquindox, fast-growing pigs, fast-growing sperm, blood, liver residue, livestock and poultry music, fat pig prosperous, etc. (2) Trace element additives: including copper, iron, zinc, cobalt, manganese, iodine, selenium, calcium, phosphorus, etc., which can regulate the body's metabolism, promote growth and development, enhance disease resistance and improve feed utilization. After adding, the daily gain of pigs can generally be increased by 10% ~ 20%, and the feed cost can be reduced by 8% ~ 10%.