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Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy
BACKGROUND: Ovine psoroptic mange (sheep scab) is an important disease of sheep worldwide caused by the parasitic mite, Psoroptes ovis. It has a negative impact on animal welfare and leads to significant economic losses for the sheep industry. Effective and targeted management is required to limit i...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10676605/ https://www.ncbi.nlm.nih.gov/pubmed/38007436 http://dx.doi.org/10.1186/s13071-023-06044-0 |
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author | Lihou, Katie Wall, Richard Nixon, Emily |
author_facet | Lihou, Katie Wall, Richard Nixon, Emily |
author_sort | Lihou, Katie |
collection | PubMed |
description | BACKGROUND: Ovine psoroptic mange (sheep scab) is an important disease of sheep worldwide caused by the parasitic mite, Psoroptes ovis. It has a negative impact on animal welfare and leads to significant economic losses for the sheep industry. Effective and targeted management is required to limit its transmission. METHODS: A stochastic metapopulation model of sheep scab transmission is used to investigate the contribution of the treatment of sheep prior to movements to sales, gatherings (predominantly markets) and away grazing to the reduction of prevalence of farms with scab in Great Britain. RESULTS: Treatment prior to movement to gatherings resulted in an 86% reduction in the overall prevalence of farms with scab and was more effective at reducing the overall prevalence of farms with scab than treatment before other categories of movements. The relative risk of farms having scab infection was inversely related to the percentage of farms which treated, but this relationship was not linear, with the biggest declines in the prevalence of farms with scab being achieved by small percentages of farms treating; a 50% relative reduction in the farm prevalence was achieved with only 15% of farms treating prior to gathering movements. CONCLUSIONS: The results suggest that pre-movement treatment of sheep could make an important contribution to national scab control and, in practice, the approach could be more highly targeted if used in conjunction with known geographic and management risk factors for scab. GRAPHICAL ABSTRACT: [Image: see text] |
format | Online Article Text |
id | pubmed-10676605 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-106766052023-11-26 Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy Lihou, Katie Wall, Richard Nixon, Emily Parasit Vectors Research BACKGROUND: Ovine psoroptic mange (sheep scab) is an important disease of sheep worldwide caused by the parasitic mite, Psoroptes ovis. It has a negative impact on animal welfare and leads to significant economic losses for the sheep industry. Effective and targeted management is required to limit its transmission. METHODS: A stochastic metapopulation model of sheep scab transmission is used to investigate the contribution of the treatment of sheep prior to movements to sales, gatherings (predominantly markets) and away grazing to the reduction of prevalence of farms with scab in Great Britain. RESULTS: Treatment prior to movement to gatherings resulted in an 86% reduction in the overall prevalence of farms with scab and was more effective at reducing the overall prevalence of farms with scab than treatment before other categories of movements. The relative risk of farms having scab infection was inversely related to the percentage of farms which treated, but this relationship was not linear, with the biggest declines in the prevalence of farms with scab being achieved by small percentages of farms treating; a 50% relative reduction in the farm prevalence was achieved with only 15% of farms treating prior to gathering movements. CONCLUSIONS: The results suggest that pre-movement treatment of sheep could make an important contribution to national scab control and, in practice, the approach could be more highly targeted if used in conjunction with known geographic and management risk factors for scab. GRAPHICAL ABSTRACT: [Image: see text] BioMed Central 2023-11-26 /pmc/articles/PMC10676605/ /pubmed/38007436 http://dx.doi.org/10.1186/s13071-023-06044-0 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Lihou, Katie Wall, Richard Nixon, Emily Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title | Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title_full | Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title_fullStr | Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title_full_unstemmed | Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title_short | Treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
title_sort | treatment of sheep prior to movement: its contribution to an effective scab (psoroptic mange) management strategy |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10676605/ https://www.ncbi.nlm.nih.gov/pubmed/38007436 http://dx.doi.org/10.1186/s13071-023-06044-0 |
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