Diagnosis and treatment of Porcine Respiratory Disease Syndrome

Porcine respiratory syndrome is a highly pathogenic infectious disease mainly caused by respiratory symptoms and pathological changes caused by a variety of viruses, bacteria and other microorganisms. Primary infections may include PRRSV, PCV-II, PRV, SIV, HCV, pathogens of porcine infectious atrophic rhinitis and mycoplasma, while secondary infections may include Streptococcus, Actinobacillus pleuropneumoniae, Haemophilus parasuis, Eperythrozoon, Salmonella and so on.

Clinical symptoms of a pig farm in western Guangdong, a new batch of weaning pigs, enter the pig for about 10 days, the pig appears poor spirit, fluffy hair, erect, no luster. Part of the occurrence of wheezing, cough, abdominal breathing is obvious, eye secretions increased. The whole herd of pigs is emaciated and grows slowly. Red papules appear on the ear, back and abdominal skin. In particular, a large area of red rash appeared on the skin of the buttocks and thighs of some pigs. Since there has been no death, no autopsy has been performed.

From the observation of clinical symptoms, the diagnosis can be preliminarily judged to be porcine respiratory disease syndrome caused by multiple pathogens.

For pigs with severe wheezing and coughing, one dose of amoxicillin / 25kg + 12mg of ground rice + 20mg / kg of lincomycin was injected intramuscularly twice a day for 2 days.

For pigs with red rash on their skin, Qingkailing 0.2 ml / kg + astragalus polysaccharide injection 0.2 ml / kg + potent amoxicillin 1 / 25 kg was injected intramuscularly twice a day for 2 days.

The whole group was mixed with antiviral No. 1 500g/500 kg + 70% amoxicillin 400mg / ton for 7 days to improve the body's disease resistance and prevent secondary infection.

Health prevention and control to establish and improve the pig farm biosafety system with disinfection hygiene work as the core, and to run the disinfection (disinfection compound aldehyde or compound iodine) hygiene work through all aspects of production, to provide the nutritional needs of pigs in different periods and to maintain a reasonable and balanced nutritional level of pigs. The regular addition of anti-virus No. 1 to the feed has a significant effect on enhancing the disease resistance and stress resistance of pigs.

Good feeding and management, avoid mixed breeding of pigs of different ages, and try to reduce the number of pig herds turning and mixing. Do a good job of heat preservation and ventilation in the delivery room and nursery to reduce the feeding density of pigs.

Do a good job in vaccination against classical swine fever, swine pseudorabies, porcine asthma, porcine infectious pleuropneumonia, atrophic rhinitis and other diseases.

The use of drugs should give priority to prevention. The way of adding medicine to the feed of sows and offspring can be used. Weaned pigs can be treated with 300ppm + doxycycline (300ppm) + antiviral No. 1 500g / 500kg for 7 days. Sows are given doxycycline (300ppm) + 70% amoxicillin (300ppm) + antiviral No. 1 500g / 500kg one week before and after delivery, which has a good preventive effect on respiratory syndrome in pigs.