How to prevent and cure selenium deficiency in raccoon dogs

Selenium deficiency has obvious regionality. Generally speaking, the selenium deficiency of human beings and animals is caused by the selenium deficiency geological environment, especially in the years with more autumn rain, the selenium in the surface soil is lost with Rain Water, mainly herbivores or omnivores, it is difficult to obtain enough selenium from plants, thus causing selenium deficiency.

The narrow areas from northeast to southwest of China are selenium-deficient areas, especially in the western part of Heilongjiang Province and Liangshan in Sichuan Province. The concentration of selenium in organs and tissues of selenium-deficient animals decreases. Under the actual production conditions, liver necrosis may occur, or occur at the same time as muscle dystrophy, mulberry heart disease and leukomyopathy. All kinds of animals have different clinical manifestations, such as decreased productivity, reduced number of births, infertility, movement disorders, mammalian placenta and so on. Attention should be paid to selenium supplement for raising animals in selenium-deficient areas.

Racoon dog is an omnivorous animal, which accounts for most of the plant feed in its diet under the condition of artificial feeding. There are more plant feedstuffs in Heilongjiang Province, and plant feed is produced locally (in selenium-poor areas). Therefore, the diet must be properly filled with trace elements selenium and vitamin E.

The clinical manifestation of the disease has no obvious symptoms at the beginning and is often ignored. With the extension of time, there will be loss of appetite or abstinence due to long-term selenium deficiency, depression in spirit, preference for lying, inflexible movement of hindlimbs, low back arching, difficulty in walking, and forced exercise. Kneel on both forelegs, and the hind legs drag the ground and crawl forward, sometimes in a dog sitting position. Due to long-term malnutrition, the body weakens until exhaustion and death. The disease mostly occurs in the rapid growth period of young raccoons, such as lack of trace element selenium in pregnancy diet, raccoons will not suck milk (wooden tongue disease) and die after birth.

The changes of skeletal muscle and myocardial degeneration, skeletal muscle dry, light color, turbidity, rough section, depression, necrotic focus, yellowish or white, and the muscle of the longest dorsal muscle and buttocks were more obvious. Reduced myocardial fat, lighter color, turbidity, lack of luster, dilated ventricle, thinning and softening of the heart wall. The tongue of the son beast is white.

Prevention and control measures should be fed full-price diet, self-proportioning should pay attention to selenium and vitamin E, to prevent the occurrence of the disease. Treatment: first supplement selenium and prepare 0.1% sodium selenite solution with normal saline. Treatment dose below 5 months old: intramuscular injection 1.1 mg, oral 2.0 mg; prevention dose: intramuscular injection 1.0 ml, oral 1.5 ml. In the supplement of selenium at the same time, each daily intramuscular or subcutaneous injection of 5.0 mg ~ 10.0 mg of vitamin E solution, will enhance the therapeutic effect.

As the therapeutic amount of sodium selenite is very close to the amount of intoxication, it should be used with special caution. Sodium selenite-vitamin E injection sold in the market can also be used. When using it, you must follow the instructions, or calculate the dosage according to the content of sodium selenite and then use it each time, so as to avoid selenium poisoning. Chronic poisoning can be caused by long-term intake of 5 mg ~ 10 mg / kg of feed selenium in various animals, which is characterized by emaciation, greed for blood, ankylosis of joints, removal of hooves (nails, claws), hair removal and affecting reproduction. A single intake of 500mg ~ 1000 mg / kg of feed selenium may occur in acute or subacute poisoning, the light ones stumble blindly and the severe ones die.