Effects of Mycoplasma hyopneumoniae vaccine on pigs naturally infected with M. hyopneumoniae and porcine reproductive and respiratory syndrome virus
| Autor: | Isabelle A. Moreau, Gay Y. Miller, Peter B. Bahnson |
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| Rok vydání: | 2004 |
| Předmět: |
Male
Swine animal diseases Porcine Reproductive and Respiratory Syndrome Mycoplasmataceae Antibodies Viral Weight Gain Virus Microbiology Arterivirus Mycoplasma hyopneumoniae Nidovirales Animals Porcine respiratory and reproductive syndrome virus General Veterinary General Immunology and Microbiology biology Vaccination Public Health Environmental and Occupational Health Pneumonia of Swine Mycoplasmal biology.organism_classification Porcine reproductive and respiratory syndrome virus Survival Analysis Virology Infectious Diseases Vaccines Inactivated Bacterial Vaccines Mollicutes Molecular Medicine Female |
| Zdroj: | Vaccine. 22:2328-2333 |
| ISSN: | 0264-410X |
| Popis: | The effects of a single-dose Mycoplasma hyopneumoniae vaccine was studied in growing pigs. Each of 24 vaccinated cohorts of approximately 1200 pigs reared in separate barns was matched by time, farm site, and sex with unvaccinated cohorts. Pigs were naturally exposed to M. hyopneumoniae and porcine reproductive respiratory syndrome virus (PRRSv). Daily weight gain was 42 g per pig per day higher and mortality rate was 15.2/1000 pigs lower for vaccinated cohorts. Age at PRRSv onset was associated with mortality rate, but did not modify vaccine effects. M. hyopneumoniae vaccination was effective in promoting growth in spite of concurrent PRRSv infection. |
| Databáze: | OpenAIRE |
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