Clinical testing of combined vaccine against enzootic pneumonia in industrial pig farming in Bulgaria

Macedonian Veterinary Review

Roman Pepovich¹  Elena Nikolova²  Ivo Sirakov²  Krasimira Genova³  Kalin Hristov⁴  Branimir Nikolov⁴  Radka Hajiolova⁵  Boika Beltova⁵ 

[1] Department ofInfectious Pathology & Hygiene, Technology and Control of Food ofAnimal Origin, Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria;Department ofVirology and Viral Diseases, National Diagnostic and Research Veterinary Institute, Sofia, Bulgaria;Department of Animal Breeding Science, Faculty of Veterinary Medicine,University of Forestry, Sofia, Bulgaria;Department of Obstetrics, Gynecology, Biotechnology of Reproduction & Pathological Anatomy and Biochemistry, Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria;Department of Pathophysiology, Faculty of Medicine, Medical University, Sofia, Bulgaria;

关键词: Enzootic pneumonia;    Mycoplasma hyopneumoniae;    pigs;    vaccination;   

DOI  :  10.14432/j.macvetrev.2015.07.051

来源: DOAJ

【 摘 要 】

In the pig farm with signs of a respiratory disease complex and laboratory confirmed enzootic pneumonia, the prophylactic efficacy of the combination vaccine (M. hyo+PCV2), a single injection administered intramuscularly 21 days after birth, at a dose of 2 ml was tested. The clinical condition, pathological changes in the lungs and some epidemiological and economic results were reported. It was found that vaccinated pigs are in a better clinical condition in comparison with the control group. Morbidity in the rearing period was reduced from 16.3% in the control group to 6.0% in vaccinated pigs, and in the fattening period, respectively, from 30.6% in the control group to 10.0% in the vaccinated group. Pathological features in the lung characteristic for the enzootic pneumonia in the vaccinated pigs were reduced from 25.5%±7.24 to 4.0%±2.44, and PCVI - from 13.0%±4.66 to 0%. Vaccination of pigs has been received and a higher average daily gain in groups for rearing (0.624 kg) and for fattening (0.723 kg) was recorded.

【 授权许可】

Unknown