1. Chinese Herbal Fertilizer: The fattening formula of summer broilers: 12% for chili pepper, magnesium sulfate, 23% for licorice, Wujiapi, ginger powder and 7% for fennel. Fertilizer formulation for winter broilers: 24% ginger powder, 50% cinnamon, 9% each for bile grass, magnesium sulfate, and 8% for fennel. The drug in the formula is powdered, mixed in the feed, and water is added. Each chicken is fed with 0.5-1 g each time. Once every two days, the appetite of the chicken is enhanced, the color of the coat is bright, and the weight gain is fast. . 2, oxytetracycline calcium fertilizer: in the feed often add terramycin calcium salt, each chicken 100-200 grams per year, can make chicken fat, prolific egg production. 3. Sodium sulfate fattening: From the 10th day of age, broilers were fed with sodium sulfate, and the feed amount was 0.3% of the compound feed, which was fed for a long period of time. Sodium sulfate promotes protein biosynthesis in the body, stimulates growth and improves meat quality. 4. Soybean Fertilizer: About a week before the sale, add a little soy oil to the feed and add two-tenths of the sublimed sulfur powder according to the amount of feed. This will enable the chicken to fatten, tender and oily in the short term. Xi'an complex bio-tech CO.,LTD. , https://www.complexpowder.com