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Livestock and poultry feed is indispensable for zinc and sulfur
Zinc and sulfur are trace elements necessary for the growth and breeding of livestock and poultry and are indispensable in livestock and poultry feed. When zinc deficiency in feed or zinc in the feed is not easily absorbed by livestock and poultry, zinc deficiency occurs in livestock and poultry, resulting in body thinning of the livestock and poultry, thickening of the skin, marked atrophy of the testes of breeder and breeder, reduction of sperm, growth, Breeding is affected. Therefore, livestock and poultry feed must not be deficient in zinc, in some zinc-deficient livestock and poultry feed, zinc should be properly supplemented. The method is to mix them with zinc sulfate or zinc carbonate. The amount to be supplemented may vary depending on the species and the growing period of the livestock and poultry. Generally, the amount of zinc sulfate or zinc carbonate added per kg feed is 50-60 mg of pigs within 20 kg, 20-50 kg of pigs and 40-50 mg of pregnant sows, and 50-100 kg of pigs. 30-50 mg, 40-60 mg for sows, 30-50 mg for rams, 30-60 mg for calves, 30-60 mg for calves, 40-60 mg for fattening calves, 90 mg for calves and beef cattle; 30 sheep Mg; poultry 50-100 mg. If livestock and poultry have symptoms of zinc deficiency, the amount can be increased by 0.5-1 times. When zinc sulfate or zinc carbonate is added to livestock and poultry feed, the food intake of calcium and zinc by livestock and poultry must also be adjusted so that the calcium content in the feed can be maintained at 0.65%-0.75%. In this way, we can really achieve the purpose of zinc supplementation for livestock and poultry. Sulfur in livestock and poultry feed can promote the synthesis of protein in the body of livestock and poultry, and improve the composition of protein in livestock and poultry products. For sulphur content in livestock and poultry feeds, the sulphur content can be increased by adding sodium sulphate. After the addition of sodium sulfate to livestock and poultry feed, both the yield and quality of the animal feed can be significantly improved. For example, pigs can gain 8%-11% of their weight, increase the lean meat percentage and have a delicious meat quality; the egg production rate of laying hens can increase by about 20%; the wool production of long-haired rabbits can increase by 12%-18%; The milk production can be increased by 1-1.4 kg, and the feed conversion rate can be increased by 60%.