Some days ago, highly pathogenic blue-ear ear disease was found in parts of the country. What kind of disease is this? How to prevent it? Yesterday, the reporter specifically interviewed the experts of the Municipal Animal Husbandry and Veterinary Bureau with these questions. According to experts, highly pathogenic PRRS is an acute, highly lethal disease caused by a variant strain of porcine reproductive and respiratory syndrome (commonly known as blue ear disease) virus. It is characterized by a marked increase in body temperature in pigs, which can be as high as 41°C or more; concurrent with conjunctivitis, eyelid edema, and respiratory symptoms such as cough and wheezing; some pigs have weaknesses in their hindquarters, inability to stand or ataxia and other neurological symptoms. The incidence of piglets can reach 100%, the mortality rate can reach more than 50%, the sow abortion rate can reach more than 30%, and finishing pigs can also die. Blue Ear disease has many transmission routes and the pathogenesis is complex. In view of the fact that the disease has a strong season, high morbidity and mortality, comprehensive prevention and control must be implemented. The first is to strengthen feeding management. To adopt the “all-in, all-out†breeding mode, keep the ventilation and drying of the pig house in the high temperature season, do a good job in preventing the heat and cooling, provide sufficient clean drinking water for the pigs, reduce the breeding density appropriately, reduce the emergency factors, and ensure adequate nutrition. Improve the disease resistance of pigs; eliminate polyculture of pigs, chickens, ducks, and other animals, avoid cross-infection, and encourage large-scale feeding. Scientific immunity cannot be ignored either. Immunization is the basis for effective prevention of various animal diseases, mainly using highly pathogenic PRRS vaccine after intramuscular injection. When inoculating the same herd, use the vaccine of the same manufacturer and the same lot as much as possible. While doing a good job of immunizing against blue ear disease, prevention and control of swine fever, pseudorabies, and other bacterial diseases must be done to prevent secondary and concurrent infections. Under the guidance of veterinary technicians, appropriate antibacterial and immunoenhancing agents for prevention can also be selected, and rational drug plans can be formulated to prevent bacterial infections in swine herds and increase the immune capacity and health of pigs. In addition, we must strictly disinfect, do a good job of environmental sanitation, remove pig manure and excrement in a timely manner, carry out harmless treatment of all kinds of contaminated goods, and strengthen the disinfection of the environment in the feedlot, pig house and its surroundings. The highly pathogenic blue-ear virus is less viable in the external environment. As long as disinfection measures are in place, common disinfectants such as aldehydes, chlorine-containing disinfectants, phenols, oxidants, and alkalis can kill the environment. Virus. Experts also suggested that pig farmers should pay attention to the standard supplements. The piglets selected for the non-epidemic area were imported and transferred to the Municipal Livestock Veterinary Bureau for registration. Check the quarantine certificate before purchase. After purchase, it must be kept in isolation for more than one week. The body temperature should be normal and then mixed. Now is the hot season. Try not to introduce piglets to other places. The pigs that have died and died should be treated with four different treatments: no slaughter, no consumption, no sale, no transshipment, and no harm to sick pigs. Tips: 1, about immunity Generally, a 12-gauge needle and a pig-needle needle are used to immunize a commercial piglet with 2 ml for the first time after weaning. In a highly pathogenic pig blue-ear disease endemic area, the same dose may be used for immunization once a month after the first immunization; The sow is vaccinated with the product piglet before 70 days of age, and once after each pregnant sow is given a booster dose of 4ml; the boar 70 days before the vaccination program with the commodity piglet, after every 6 months Boost 1 time, dose 4ml. The boars are vaccinated with commercial pigs before 70 days of age and then boosted once every 6 months for a dose of 4 ml. Before the vaccine is used, it should be removed from the refrigerator and left for 2-3 hours before returning to room temperature. Shake well before use. While doing a good job of immunizing against blue ear disease, prevention and control of swine fever, pseudorabies, and other bacterial diseases must be done to prevent secondary and concurrent infections. 2, about disinfection Closed enclosures can be added to 7-42 grams of potassium permanganate per cubic meter of 14-42 ml of formalin for fumigation for 7 hours; animal litter, cages, feed troughs, and vehicles can be sprayed with 5% bleach solution. Fei County Mingtao Electronic Co.,Ltd , https://www.yourbeautyassistant.com
If it is found that pigs with abnormal febrile illness appear in scattered farms or large-scale breeding farms, they should immediately report to the Municipal Animal Husbandry and Veterinary Bureau and call us.
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