| abstract |
The invention provides a feed additive, which comprises the following components in parts by weight: 10-20kg of lecithin, 200-300g of chitin, 500-800g of chitosan oligosaccharide, 150-200g of organic selenium, 200-300g of organic zinc, 20-30kg of algae powder and 10-15kg of licorice powder. Or 10-15kg of lecithin, 250g of chitin 200-. The invention has simple formula and convenient use, can improve the immunity of chickens, reduce drug residues and side effects and cause small indirect damage to human bodies. |