It has been determined that only 40 to 50 mg of iron is stored in newborn piglets, and piglets need to digest and absorb 7 to 11 mg per day. Piglets are breast-fed for about 500-650 grams a day for the first week. Generally, 0.2 mg of iron is contained per 100 g of pig's milk, and the amount of milk per day is only 1 to 1.3 mg of iron. According to this, pigs of 1 week old need a total of 49-77 mg of iron, which is a contradiction between supply and demand. If the iron is not supplemented in time, the hemoglobin content can drop to less than 7% after four or five days (normally, 10 to 12 grams of hemoglobin per 100 milliliters of blood). The piglets have anemia and begin to show slow growth, and the coat is dull. The skin is dry, the conjunctiva is pale, the limbs are weak, the food is reduced, the food is not eaten in the late stage, and the lying ground is not able to emanate. At present, iron supplementation methods for piglets include indirect iron supplementation and direct iron supplementation. The former is for injecting or feeding iron preparations to pregnant sows or lactating sows. This method can only be used as an additional supplement because the placenta and the breast contain very little iron. Direct iron supplementation is to inject piglets or feed iron preparations. The best effect is the “iron injection methodâ€, which means that within 3 days of piglet birth, 1 ml of selenium (150 mg of iron) is injected intramuscularly in each leg, or 2 ml of dextran iron cobalt injection is injected to meet the requirements. The growth and development of piglets requires iron. Can also be used ferrous sulfate (blue cedar) 2.5 grams, 1 gram of copper sulfate, dissolved in 1000 ml of constant water, according to the whole pig weight per kilogram of gavage 0.25 ml, once a day, and even served 7 to 14 days. In addition, supplementation of high-level full-grain iron pellets for piglets from 7 to 10 days of age can also be used to spread 1 deep soil into the mother's litter every day to allow the female pigs to feed on their diets. All have better anemia prevention. , White piglets disease, enhance disease resistance, and promote growth. China Agricultural Network Editor
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