Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies

Abstract Background Pasture management influences the prevalence and impact of the pasture parasites (PP) in cattle herds, which cause production-limiting disease worldwide. Evaluating farmer management strategies is vital when considering sustainable PP control practices. The aim of this questionna...

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Autores principales:	Tonje Opsal, Ingrid Toftaker, Ane Nødtvedt, Lucy Jane Robertson, Kristoffer Relling Tysnes, Ian Woolsey, Lisbeth Hektoen
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Anthelmintic treatment Grazing Ostertagia ostertagi Pasture parasites Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/7e60d4bf016e4513bc748ce0bc1ee7e9
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spelling	oai:doaj.org-article:7e60d4bf016e4513bc748ce0bc1ee7e92021-12-05T12:20:26ZGastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies10.1186/s13028-021-00618-71751-0147https://doaj.org/article/7e60d4bf016e4513bc748ce0bc1ee7e92021-12-01T00:00:00Zhttps://doi.org/10.1186/s13028-021-00618-7https://doaj.org/toc/1751-0147Abstract Background Pasture management influences the prevalence and impact of the pasture parasites (PP) in cattle herds, which cause production-limiting disease worldwide. Evaluating farmer management strategies is vital when considering sustainable PP control practices. The aim of this questionnaire-based study was to describe the pasture management and control strategies regarding PP in Norwegian beef cattle (BC) and dairy cattle (DC) production systems with a focus on gastrointestinal nematodes (GIN) and Fasciola hepatica. Results A total of 745 responses from BC (return rate 20.5%) and 1347 responses from DC farmers (30.7%) were included. The mean total pasture time for DC was 4.2 months for first-season grazers and 4.3 months for second-season grazers and cows, while the corresponding finding in BC was 5.4 months. Home pasture was used for most of the pasture period, particularly for first-season grazer dairy heifers (81%), which were also commonly grazed on the same pasture every year (79%). For most farmers it was necessary for grazing areas to be used for cattle for more than one season (77% of BC farmers and 89% of DC farmers). However, changing the pasture during the season was common in both DC (67%) and BC (70%) herds. The majority of DC farmers (60%) stated that they did not consider that they had a problem with PP. Of the remaining 40%, few respondents could specify whether their herds had a problem due to infection by GIN (11%) or liver flukes (12%). Treatment for GIN was performed by 52% of DC and 34% of BC farmers. Diagnostic faecal samples were collected upon suspicion of parasitic disease by 5% of DC and 16% of BC farmers. Veterinarians were stated as a central source of information about parasite management and treatment. Conclusions Potential risks for exposure to PP were identified, such as use of the same pasture every year for first-season grazers and frequent use of home pasture. The perception of problems related to PP appeared low. Regular anthelmintic treatment without concurrent use of diagnostic faecal samples seems to be common practice.Tonje OpsalIngrid ToftakerAne NødtvedtLucy Jane RobertsonKristoffer Relling TysnesIan WoolseyLisbeth HektoenBMCarticleAnthelmintic treatmentGrazingOstertagia ostertagiPasture parasitesVeterinary medicineSF600-1100ENActa Veterinaria Scandinavica, Vol 63, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Anthelmintic treatment Grazing Ostertagia ostertagi Pasture parasites Veterinary medicine SF600-1100
spellingShingle	Anthelmintic treatment Grazing Ostertagia ostertagi Pasture parasites Veterinary medicine SF600-1100 Tonje Opsal Ingrid Toftaker Ane Nødtvedt Lucy Jane Robertson Kristoffer Relling Tysnes Ian Woolsey Lisbeth Hektoen Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
description	Abstract Background Pasture management influences the prevalence and impact of the pasture parasites (PP) in cattle herds, which cause production-limiting disease worldwide. Evaluating farmer management strategies is vital when considering sustainable PP control practices. The aim of this questionnaire-based study was to describe the pasture management and control strategies regarding PP in Norwegian beef cattle (BC) and dairy cattle (DC) production systems with a focus on gastrointestinal nematodes (GIN) and Fasciola hepatica. Results A total of 745 responses from BC (return rate 20.5%) and 1347 responses from DC farmers (30.7%) were included. The mean total pasture time for DC was 4.2 months for first-season grazers and 4.3 months for second-season grazers and cows, while the corresponding finding in BC was 5.4 months. Home pasture was used for most of the pasture period, particularly for first-season grazer dairy heifers (81%), which were also commonly grazed on the same pasture every year (79%). For most farmers it was necessary for grazing areas to be used for cattle for more than one season (77% of BC farmers and 89% of DC farmers). However, changing the pasture during the season was common in both DC (67%) and BC (70%) herds. The majority of DC farmers (60%) stated that they did not consider that they had a problem with PP. Of the remaining 40%, few respondents could specify whether their herds had a problem due to infection by GIN (11%) or liver flukes (12%). Treatment for GIN was performed by 52% of DC and 34% of BC farmers. Diagnostic faecal samples were collected upon suspicion of parasitic disease by 5% of DC and 16% of BC farmers. Veterinarians were stated as a central source of information about parasite management and treatment. Conclusions Potential risks for exposure to PP were identified, such as use of the same pasture every year for first-season grazers and frequent use of home pasture. The perception of problems related to PP appeared low. Regular anthelmintic treatment without concurrent use of diagnostic faecal samples seems to be common practice.
format	article
author	Tonje Opsal Ingrid Toftaker Ane Nødtvedt Lucy Jane Robertson Kristoffer Relling Tysnes Ian Woolsey Lisbeth Hektoen
author_facet	Tonje Opsal Ingrid Toftaker Ane Nødtvedt Lucy Jane Robertson Kristoffer Relling Tysnes Ian Woolsey Lisbeth Hektoen
author_sort	Tonje Opsal
title	Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
title_short	Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
title_full	Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
title_fullStr	Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
title_full_unstemmed	Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
title_sort	gastrointestinal nematodes and fasciola hepatica in norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies
publisher	BMC
publishDate	2021
url	https://doaj.org/article/7e60d4bf016e4513bc748ce0bc1ee7e9
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Gastrointestinal nematodes and Fasciola hepatica in Norwegian cattle herds: a questionnaire to investigate farmers’ perceptions and control strategies

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