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Effect of Selenium on Cattle and Sheep Breeding
Release time:
2019-08-05
The main symptoms of selenium deficiency include: abnormal posture and motor dysfunction caused by skeletal muscle diseases; digestive function disorder mainly caused by intractable diarrhea or diarrhea; heart rate acceleration, arrhythmia and cardiac insufficiency caused by myocardial disease. It is suggested that cattle and sheep should lick Rocky bricks (30 mg selenium per kilogram) for a long time or use premix with reasonable nutrient concentration.
Selenium elementIt is a component of glutathione peroxidase, which can prevent the accumulation of lipid peroxides in the body and protect cell membranes and mitochondria. It is an essential element for the conversion of methionine into cysteine.ESynergy, antioxidant effect in animals, vitaminEThe absorption and storage have a promoting effect, and also participate in amino acid metabolism in the body, which plays an important role in protecting the body's stable immune function, and can protect the myocardium and maintain the normal growth and fertility of sheep.
Selenium deficiency can cause liver necrosis, myocardial degeneration and pancreatic atrophy, so that young sheep appear nutritional muscle atrophy, white myopathy, lamb is the most common and most serious. For adult sheep, it is characterized by reproductive dysfunction, reduced fecundity, and severe weight loss.according to reports,Buffalo mortality up25％～30％,yak calf29.5％～42.5％,Lamb up30more than%.There are large areas of selenium deficiency in Northeast China, Inner Mongolia, Shandong and Hebei provinces, and selenium supplementation should be paid attention.
1. Pathogenesis:
Selenium and vitaminsEBoth are essential nutrients for the animal body, and have complex compensation and synergy in biology. The two together form the antioxidant system of the cell and share the common antioxidant effect. Selenium and vitamins in feed (grass)EInsufficient content is the root cause of the disease.
2. Clinical symptoms:
The disease mainly occurs in young animals, lambs are generally5~30Days of age, calves were1~90Day age. Adult animals are mainly characterized by reproductive dysfunction, reduced production performance, reduced pregnancy, and undeveloped cow placenta.
The main symptoms include: abnormal posture and motor dysfunction caused by skeletal muscle disease; digestive disorder mainly caused by intractable diarrhea or diarrhea; heart rate, arrhythmia and cardiac insufficiency caused by myocardial disease. The clinical symptoms of different livestock and poultry are as follows:
3、ruminantPerformance:
Calves and lambs show typical white myopathy syndrome. Movement disorders, lie down, difficult standing, hip back muscle stiffness. Digestive disorders, with intractable diarrhea. Heart rate increases, arrhythmias. Adult cows have lower placenta, lower lactation, lower pregnancy rates or infertility, and some have myoglobinuria.
4. Prevention and control measures
Livestock and poultry raised in low-selenium areas should pay attention to the addition of selenium, and it is recommended that cattle and sheep be licked for a long time.Rocky Lick Brick(30 mg selenium per kg) or use a premix with a reasonable nutrient concentration. If selenium deficiency has occurred, sodium selenite can be injected intramuscularly with vitamins.EPlease consult the specific dosage.
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