1, 500 grams of soy beans and rice, add water, rotten, put 250 grams of rice bran and appropriate amount of salt and mix well, donkey quail and then feed, even feed 7 to 10 days. 2. Each donkey uses 100 grams of white sugar or 150 grams of brown sugar per day in warm water to allow the donkey to drink. Ten to 20 days can be strong. 3, the cotton seeds fry yellow or cooked in the pot until the expansion of cracking, you can remove 90% of the gossypol poison, and the smell of tangy, feed 1 kg per donkey per day, no cottonseed cake, bean cake can be, continuous 15 day. 4, 250 grams of lard, 1 kilogram of fresh leek, 10 grams of salt, fried feed donkey, once a day, even fed 7 days. 5, oral donkey per day 10 mg of diethylstilbestrol, daily weight gain can be increased by 12%. 100 mg of ethylene-estradiol was implanted under the donkey's ear 100 days before the slaughter, and the daily gain of the herd donkey could be increased by 15%. 6, the application of trace elements cobalt, iodine, copper, selenium, etc. can improve feed utilization, and promote weight gain. Adding some zinc in fattening can prevent hair loss and reduce skin diseases.