Автор |
de Jong, M. F. |
Автор |
Bouwkamp, F. T. |
Автор |
Oosterwoud, R. A. |
Дата выпуска |
1987 |
dc.description |
SummaryA field trial was carried out with Nobi‐Vac AR vaccine in 11 swine breeding herds. One herd suffered from severe B. bronchiseptica (BB+) rhinitis in piglets, while no clinical Atrophic Rhinitis (AR) was observed. Ten herds were described as AR problem herds, because clinical AR was observed for at least 1 year in spite of the fact that medication of sows and piglets was carried out and adequate housing and management systems were available in most herds. BB+ was isolated in 9 of these 10 farms and the AR pathogenic P. multocida (PM+) in all these farms.The trial started when piglets were born of sows which had been vaccinated 3 times. All piglets between 7 and 10 weeks old were examined clinically for AR. Nasal swabs from 20 pigs on each farm were screened bacteriologically for BB+ and PM+ every other month.A severe reoccurrence of AR was found in 2 of the 10 AR problem farms. In these 2 herds the ‘all in‐all out’ system was not applied in farrowing and weaning houses. In the 8 other AR problem herds the percentage of pigs with AR decreased significantly below the average level of 1% per year. The percentage of pigs infected with BB+ and PM+ also decreased significantly. PM+ was significantly related to the percentage of clinical AR piglets. Seasonal effects contributed to a minor extent to the percentage of AR piglets.After 2.5 years of this trial PM+ could not be isolated during the last 12 months in six of the remaining AR problems herds.The conclusion is that Nobi‐Vac AR vaccination of the sow gave protection against clinical AR in piglets on those farms (80%) which provided adequate housing and management systems. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Название |
A field evaluation of Nobi<sup>®</sup>‐Vac Atrophic Rhinitis vaccine |
Тип |
research-article |
DOI |
10.1080/01652176.1987.9694075 |
Electronic ISSN |
1875-5941 |
Print ISSN |
0165-2176 |
Журнал |
Veterinary Quarterly |
Том |
9 |
Первая страница |
49 |
Последняя страница |
59 |
Аффилиация |
de Jong, M. F.; Animal Health Service Institute |
Аффилиация |
Bouwkamp, F. T.; Animal Health Service Institute |
Аффилиация |
Oosterwoud, R. A.; Animal Health Service Institute |
Выпуск |
1 |
Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
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