Comparison of immune response in broiler chickens after experimental inoculation with isolates of avian metapneumovirus subtypes A and B
After experimental inoculation of broiler chickens with subtype A avian metapneumovirus isolate, mild clinical signs were observed on days 6-14 after inoculation. The infected chickens demonstrated slight increase of T-helpers activity in blood, poor specific antibody response, development of specif...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Da Vinci Media
2018-04-01
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| Series: | Ветеринария сегодня |
| Subjects: | |
| Online Access: | https://veterinary.arriah.ru/jour/article/view/282 |
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| Summary: | After experimental inoculation of broiler chickens with subtype A avian metapneumovirus isolate, mild clinical signs were observed on days 6-14 after inoculation. The infected chickens demonstrated slight increase of T-helpers activity in blood, poor specific antibody response, development of specific secretory antibodies. Subtype B avian metapneumovirus isolate caused a somewhat more obvious specific clinical signs in chickens compared with subtype A on days 5-15 after inoculation, however, in both experiments, clinical signs completely disappeared in 14-15 days after infection. The increase of relative number of cytotoxic T lymphocytes in blood and in spleen, specific antibody response in 50-70% of chickens and activation of local immune response in 50% of chickens were observed in inoculated chickens. |
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| ISSN: | 2304-196X 2658-6959 |