Cause: Due to the lack of minerals, vitamins, and trace elements, the body's metabolic disorders and digestive disorders cause heterophilia. The lack or proportion of potassium salt and sodium salt can cause pica. Frequent feeding of acidic feeds, or excessive protein concentrates, and long-term indigestion of livestock, excessive feeding of diets rich in phosphoric acid such as grains and wheat bran, due to the need for large amounts of alkali to neutralize the body to consume potassium, sodium , Almighty lead to the lack of potassium and sodium in the body and cause the disease.
Symptoms: Loss of appetite at the beginning of the disease, slow rumination of cattle and sheep, often presents with delayed stomach, followed by the symptoms of pica. The affected animals often suffer from grasses and rags that are contaminated with excrement, and prefer sweets with alkaline taste. Foreign matter, even biting walls, stumps, mud, carbon residue. Pigs like to eat chicken manure and their own excrement. Fleece of lambs, feeding of ewes and other sheep's wool, and sows consuming piglets and placenta, sometimes due to insufficient protein supply. Piglets and shelf pigs bite each other's ears and tails on each other due to lack of protein or feeding non-full-priced feeds.
Prevention: Mainly improve feeding and management, adopt pathogenic therapy, and change feed. The diet must contain enough minerals and vitamins as well as bone meal and salt. When vitamins are insufficient, green fodder, carrots, and yeast powder should be given. Due to lack of trace elements (such as copper and cobalt), cobalt chloride cattle, horse 10-40 mg, goat 2-5 mg, quail, pig 5-20 mg can be given orally; l copper sulfate can be used with cobalt chloride The dose was 300 mg for cattle, 75-150 mg for fleas, and 10-20 mg for goats. Severe pica can be injected subcutaneously with apomorphine (0.02-0.05 grams for large animals and 0.005-0.01 grams for sheep) and can receive results.
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