Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control
Abstract The efficacy of emamectin benzoate (SLICE ® ) against sea lice infestations of Atlantic salmon, Salmo salar L., is typically assessed using untreated fish, or fish treated with alternative therapeutants, as controls. The State of Maine, USA, is currently under active management for the OIE‐...
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crwiley:10.1111/j.1365-2761.2006.00761.x 2024-09-09T19:30:18+00:00 Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control Gustafson, L Ellis, S Robinson, T Marenghi, F Endris, R 2006 http://dx.doi.org/10.1111/j.1365-2761.2006.00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2006.00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2006.00761.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 29, issue 10, page 621-627 ISSN 0140-7775 1365-2761 journal-article 2006 crwiley https://doi.org/10.1111/j.1365-2761.2006.00761.x 2024-06-18T04:17:07Z Abstract The efficacy of emamectin benzoate (SLICE ® ) against sea lice infestations of Atlantic salmon, Salmo salar L., is typically assessed using untreated fish, or fish treated with alternative therapeutants, as controls. The State of Maine, USA, is currently under active management for the OIE‐notifiable pathogen, infectious salmon anaemia virus (ISAV); consequently, neither control group is feasible in this region. Untreated salmon risk extensive damage from the ectoparasites, and threaten to increase vector‐borne exposure or susceptibility of farms to ISAV; and the only treatment presently available in Maine is SLICE ® . However, because sea lice infestations are unlikely to resolve spontaneously, and response to treatment occurs within weeks, use of a pretreatment baseline is a reasonable alternative for confirmatory studies. We evaluated SLICE ® efficacy on Atlantic salmon farms in Cobscook Bay 2002–2005, in the absence of untreated controls, using pretreatment lice loads as a reference for calculation. Maximum efficacy ranged from 68% to 100% reduction from initial levels. Time‐to‐maximum efficacy ranged from 1 to 8 weeks after treatment initiation. Efficacy duration, measured between first reduction and first progressive rise in counts, ranged from 4 to 16 weeks. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Diseases 29 10 621 627 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The efficacy of emamectin benzoate (SLICE ® ) against sea lice infestations of Atlantic salmon, Salmo salar L., is typically assessed using untreated fish, or fish treated with alternative therapeutants, as controls. The State of Maine, USA, is currently under active management for the OIE‐notifiable pathogen, infectious salmon anaemia virus (ISAV); consequently, neither control group is feasible in this region. Untreated salmon risk extensive damage from the ectoparasites, and threaten to increase vector‐borne exposure or susceptibility of farms to ISAV; and the only treatment presently available in Maine is SLICE ® . However, because sea lice infestations are unlikely to resolve spontaneously, and response to treatment occurs within weeks, use of a pretreatment baseline is a reasonable alternative for confirmatory studies. We evaluated SLICE ® efficacy on Atlantic salmon farms in Cobscook Bay 2002–2005, in the absence of untreated controls, using pretreatment lice loads as a reference for calculation. Maximum efficacy ranged from 68% to 100% reduction from initial levels. Time‐to‐maximum efficacy ranged from 1 to 8 weeks after treatment initiation. Efficacy duration, measured between first reduction and first progressive rise in counts, ranged from 4 to 16 weeks. |
format |
Article in Journal/Newspaper |
author |
Gustafson, L Ellis, S Robinson, T Marenghi, F Endris, R |
spellingShingle |
Gustafson, L Ellis, S Robinson, T Marenghi, F Endris, R Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
author_facet |
Gustafson, L Ellis, S Robinson, T Marenghi, F Endris, R |
author_sort |
Gustafson, L |
title |
Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
title_short |
Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
title_full |
Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
title_fullStr |
Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
title_full_unstemmed |
Efficacy of emamectin benzoate against sea lice infestations of Atlantic salmon, Salmo salar L.: evaluation in the absence of an untreated contemporary control |
title_sort |
efficacy of emamectin benzoate against sea lice infestations of atlantic salmon, salmo salar l.: evaluation in the absence of an untreated contemporary control |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.1365-2761.2006.00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.2006.00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.2006.00761.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 29, issue 10, page 621-627 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2761.2006.00761.x |
container_title |
Journal of Fish Diseases |
container_volume |
29 |
container_issue |
10 |
container_start_page |
621 |
op_container_end_page |
627 |
_version_ |
1809899287533846528 |