Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody.
Reticuloendotheliosis virus (REV) is the most frequent exogenous virus that contaminates attenuated vaccines. Therefore, it is extremely important to select REV-free specific-pathogen-free (SPF) chicken embryos. Generally, REV infection is assessed by detecting REV antibodies in SPF chickens. This p...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2019-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0213978 |
| _version_ | 1818726593756921856 |
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| author | Yang Li Tuanjie Wang Lin Wang Mingjun Sun Zhizhong Cui Shuang Chang Yongping Wu Xiaodong Zhang Xiaohui Yu Tao Sun Peng Zhao |
| author_facet | Yang Li Tuanjie Wang Lin Wang Mingjun Sun Zhizhong Cui Shuang Chang Yongping Wu Xiaodong Zhang Xiaohui Yu Tao Sun Peng Zhao |
| author_sort | Yang Li |
| collection | DOAJ |
| description | Reticuloendotheliosis virus (REV) is the most frequent exogenous virus that contaminates attenuated vaccines. Therefore, it is extremely important to select REV-free specific-pathogen-free (SPF) chicken embryos. Generally, REV infection is assessed by detecting REV antibodies in SPF chickens. This present study seeks to evaluate REV infection by replacing serum antibody detection with yolk antibody detection. A cohort of 40 nineteen-week-old SPF chickens were artificially inoculated with REV, with 32 SPF chickens raised in another isolation environment served as a blank control. Eggs and serum from 23-week-old chickens were sampled, and yolks were diluted separately to ratios of 1:150, 1:200, 1:300 and 1:400, which were detected together with serum. We found that the yolk antibody detection findings at a dilution of 1:300 had the highest coincidence rate compared with that based on serum antibody measurements. At a dilution ratio of 1:300 for yolk antibody, 72 chickens were continuously observed for 10 weeks from 25- to 34-weeks-old. Our findings were based on serum antibody or yolk antibody detection, and the evaluation results were completely consistent. Therefore, all serum antibody-positive chickens were yolk antibody-positive, and vice versa. Accordingly, vaccine producers can estimate REV cleanliness in a poultry farm by sampling yolk antibody titers. |
| first_indexed | 2024-12-17T22:00:41Z |
| format | Article |
| id | doaj.art-c22dffb686be4b9d877fce6deadb9819 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-17T22:00:41Z |
| publishDate | 2019-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-c22dffb686be4b9d877fce6deadb98192022-12-21T21:31:00ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01144e021397810.1371/journal.pone.0213978Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody.Yang LiTuanjie WangLin WangMingjun SunZhizhong CuiShuang ChangYongping WuXiaodong ZhangXiaohui YuTao SunPeng ZhaoReticuloendotheliosis virus (REV) is the most frequent exogenous virus that contaminates attenuated vaccines. Therefore, it is extremely important to select REV-free specific-pathogen-free (SPF) chicken embryos. Generally, REV infection is assessed by detecting REV antibodies in SPF chickens. This present study seeks to evaluate REV infection by replacing serum antibody detection with yolk antibody detection. A cohort of 40 nineteen-week-old SPF chickens were artificially inoculated with REV, with 32 SPF chickens raised in another isolation environment served as a blank control. Eggs and serum from 23-week-old chickens were sampled, and yolks were diluted separately to ratios of 1:150, 1:200, 1:300 and 1:400, which were detected together with serum. We found that the yolk antibody detection findings at a dilution of 1:300 had the highest coincidence rate compared with that based on serum antibody measurements. At a dilution ratio of 1:300 for yolk antibody, 72 chickens were continuously observed for 10 weeks from 25- to 34-weeks-old. Our findings were based on serum antibody or yolk antibody detection, and the evaluation results were completely consistent. Therefore, all serum antibody-positive chickens were yolk antibody-positive, and vice versa. Accordingly, vaccine producers can estimate REV cleanliness in a poultry farm by sampling yolk antibody titers.https://doi.org/10.1371/journal.pone.0213978 |
| spellingShingle | Yang Li Tuanjie Wang Lin Wang Mingjun Sun Zhizhong Cui Shuang Chang Yongping Wu Xiaodong Zhang Xiaohui Yu Tao Sun Peng Zhao Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. PLoS ONE |
| title | Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. |
| title_full | Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. |
| title_fullStr | Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. |
| title_full_unstemmed | Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. |
| title_short | Assessment on reticuloendotheliosis virus infection in specific-pathogen-free chickens based on detection of yolk antibody. |
| title_sort | assessment on reticuloendotheliosis virus infection in specific pathogen free chickens based on detection of yolk antibody |
| url | https://doi.org/10.1371/journal.pone.0213978 |
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