2, fed antibiotic law. Commonly used antibiotics are large carbomycin, rituximab, salinomycin, monensin and so on. Add 90-110 mg per kilogram of diet, increase the weight gain by 7-15%, and increase the feed conversion rate by 6.6-15%.
3, feeding rare earth method. Adding 200-400 mg/kg of rare earth to the diet of the chicks increased daily gain by 12.4-12.8% and feed utilization increased by 12-12.8%.
4, feeding fat method. Adding 4-6% of oil scraps to the broiler diet can increase weight by more than 10%.
5, feed Lee blood level method. Reserpine facilitates fattening. Adding 2-3 mg/kg of reserpine to the broiler diet can increase the weight gain by 10-12% and shorten the feeding period by 3-4 days.
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