Rotavirus belongs to the genus Rosvirus of Reoviridae, which can cause acute gastroenteritis in piglets and is characterized by acute diarrhea. Piglets from 10 to 60 days old are more likely to develop, with an incidence rate of 80% and a mortality rate of 20%.
Popular characteristics The main source of infection of this pig disease is adult recessive poisoned pigs and sick pigs. It can be transmitted through the digestive tract and respiratory tract. It is endemic and has obvious seasonality. It is often found in winter and spring. Stress factors, especially cold and damp, poor sanitary conditions have a greater impact on the occurrence and severity of the disease. Once the disease occurs in the herd, it will occur continuously every year.
Symptoms and diseases Pigs of all ages and genders can be infected with this disease, but in the affected areas, most adult pigs have been infected and have acquired immunity, so the majority of the cases are pigs under 60 days of age. In the early stage of the disease, the pigs are mentally ill, the appetite is weak, they are unwilling to move around, vomiting, diarrhea, and the stool is watery or mushy, black and white or dark. The sick pig is extremely exhausted, lying on the couch, feeling thirsty, persistent diarrhea leading to dehydration, acid-base imbalance in the body, and death after 4-7 days. The necropsy lesions are mainly limited to the digestive tract. The stomach is sluggish, filled with curd and milk, the intestine is thin and translucent, and it is filled with liquid, grayish gray or grayish black, and the small intestine villi is flat and flat.
Integrated prevention
First, strengthen the management of feeding, keep the housing health, do the cold and warm work of the pigs, reduce the stress factors, and enhance the resistance of the sows and pigs.
Second, in the affected areas, newborn pigs should be given colostrum early to obtain maternal antibody protection to reduce the incidence.
Third, find sick pigs, immediately isolate them into clean, dry and warm pig houses to strengthen care, reduce stress factors, remove feces and contaminated bedding, disinfect contaminated environment and utensils. Fourth, with glucose glycine solution (glucose 22.5 grams, sodium chloride 4.74 grams, glycine 3.44 grams, citric acid 0.27 grams, potassium citrate 0.04 grams, anhydrous potassium phosphate 2.27 grams dissolved in 1000 ml of water) or oral Rehydration salt solution (3.5 grams of sodium chloride, 2.5 grams of sodium bicarbonate, 1.5 grams of potassium chloride, 20 grams of glucose, 1000 ml of water) for free consumption of sick pigs, simultaneous symptomatic treatment, administration of astringent antidiarrheal agents, use of antibiotics And sulfa drugs to prevent secondary infection, intravenous injection of 5% glucose saline and 5% sodium bicarbonate solution, can prevent dehydration and acidosis of sick pigs.
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