First, pine needle powder. Pine needles contain 19 kinds of amino acids, rich in carotene, vitamins, trace elements, and anti-microbial pine needle antibiotics. Adding 5% pine needle powder to pig feed can increase the daily gain by 18-30% and shorten the fattening period by 30-60 days. Second, Glauber's salt. Add 0.5-0.6% Glauber's salt to the pig's feed, increase daily weight gain by 20%, feed utilization rate by 15%, and the pigs have less health, bright fur, appetite, and normal urine. Third, kelp powder. Kelp is rich in iodide and minerals, vitamins, and active ingredients that stimulate the growth of animals. Adding 2% of kelp powder to the pig's feed increases the daily gain by 23% and the feed conversion rate by 13%. Fourth, zeolite. Zeolite is a hydrous silicate mineral containing all the essential elements and most of the trace elements necessary for the growth of pigs. Adding 1% zeolite powder to the pig's feed increases pig average weight gain by 10%. Fifth, orange peel powder. Orange peel has a variety of nutrients that can enhance animal appetite, promote rapid growth and enhance disease resistance. Adding 5% orange peel powder to pig feed can increase daily weight gain by 12%, consume 0.28 kg of feed per 1 kg of weight gain, increase feed reward by 10.5%, and increase body weight and net meat weight. Six, evergreen. The phytochemicals contain more than 40 components such as plant antibiotics, auxin, protein, and vitamins. Each kiwifruit feed contains 3-5 g of an evergreen, and the daily weight gain can be increased by 20-30%. Seven, silkworm sand. Adding 5-10% of silkworm sand to pig feed can increase the daily weight gain by 10-15% and the feed conversion rate by 15-20%. Moreover, the pig grows well and has a bright coat, which can also reduce the occurrence of swine diseases. Eight, copper sulfate. The addition of 0.25% copper sulphate to the pig feed can increase the pig's daily weight gain by 16%, the feed utilization rate by 5%, and the feed cost by about 4%. Nine, lotus root starch. Add 10-20 grams per day to piglets, 30-50 grams to large pigs, and feed only once a day. The daily weight gain of pigs can be increased by 10-15%. Ten, zinc sulfate. Adding 10-20 mg per piglet per day and 30-50 mg of large pigs can increase pig growth, appetite, smooth fur, and less morbidity. (Qian Guohong, Agricultural Technology Center, Tai'an County Broadcasting Bureau, Liaoning Province)