Prevalence of gastrointestinal helminths, lungworms and liver fluke in sheep and goats in Norway

Domke, Atle V. Meling; Chartier, Christophe; Gjerde, Bjørn; Leine, Nils; Vatn, Synnøve; Stuen, Snorre

doi:10.1016/j.vetpar.2012.12.023

Cited by 60 publications

(59 citation statements)

References 25 publications

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“…The aforementioned studies were conducted in the west and northeast part of Ethiopia while the present study was carried out in the southern part. Outside Ethiopia, surveys in Turkey, India and Iran [21][22][23][24][25] also reported D. filaria as the sole or predominant lungworm while in Morocco, Czech Republic, Norway and Bulgaria the most prevalent species identified was M. capillaris [26][27][28].…”

Section: Discussionmentioning

confidence: 99%

Lungworm Infection in Small Ruminants in and Around Wolaita Soddo Town, Southern Ethiopia

Abebe¹,

Melesse²,

Mekuria³

2016

J Veterinar Sci Technol

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This study was conducted between November 2010 to April 2011 to estimate the prevalence of lungworm infection in small ruminants, determine the parasite species and identify the potential risk factors in and around Wolaita Soddo town, Southern Ethiopia. Faecal samples were collected from 360 randomly selected small ruminants (204 sheep and 156 goats) and processed with the modified Baerman technique for the extraction of first stage larvae. Overall, 45 (22.1%) sheep and 30 (19.2%) goats were found infected with lungworms. No significant difference was observed in the prevalence of lungworm infection between sheep and goats (p>0.05). Dictyocaulus filaria was the single lungworm species identified in both sheep and goats. The risk factors analyzed were sex, age, management system (zero-grazing or free-ranging), deworming history and body condition score (BCS). Management system, deworming history and BCS were significantly associated with the prevalence of D. filaria infection in sheep and goats (p<0.05 for each factor). It was observed that the prevalence was significantly higher in extensively managed/free-ranging (OR=4.6 in goats), poorly conditioned (OR=5.3 in sheep; 6.1 in goats) and nondewormed (OR=4.8 in sheep; 6.1 in goats) animals. Sex and age had no significant effect on the occurrence of D. filaria infection (p>0.05). In conclusion, the association of lungworm infections with the management system and deworming status of the animals in the present study are as expected. The association of infection with BCS requires further research to investigate if improving the nutritional status, thereby improving BCS, will result in lower prevalence of lungworm infection. Also, as the present sample size is thought to be small, further study with a larger sample size is required to determine the effect of age and host species difference in susceptibility to lungworm infection. One of the limitations of this study is that it is a one season survey and thus, a further year-round investigation is warranted to establish the association between seasonal variation and infection.

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Section: Discussionmentioning

confidence: 99%

Lungworm Infection in Small Ruminants in and Around Wolaita Soddo Town, Southern Ethiopia

Abebe¹,

Melesse²,

Mekuria³

2016

J Veterinar Sci Technol

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“…Cases in Sweden (Hoglund et al, 2009) and Norway (Domke et al, 2013) have also been reported. Changes in climatic conditions have been implicated as the major driving force behind this expansion (van Dijk et al, 2008;Kenyon et al, 2009;Bolajoko et al, 2015).…”

Section: Introductionmentioning

confidence: 96%

Haemonchus contortus: spatial risk distribution for infection in sheep in Europe

et al. 2015

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Abstract.Haemonchus contortus is a species of gastrointestinal strongyles of primary concern for sheep. This highly pathogenic, blood-feeding helminth negatively influences animal health, welfare and productivity. In order to elucidate the current scenario in terms of prevalence and intensity of H. contortus infection in sheep farms across Europe, a standardized crosssectional survey was conducted in three pilot areas in Ireland, Switzerland and Italy, all part of the EU funded GLOWORM project. Two consecutive field surveys (in 2012 and 2013) were conducted in the three countries in the same period (AugustOctober) in 259 sheep farms in total. Harmonized, diagnostic procedures (from farm to laboratory) based on pooled samples, the FLOTAC technique and coproculture were used. The georeferenced parasitological results were modelled (at the pilot area level) following a Bayesian geostatistical approach with correction for preferential sampling and accounting for climatic and environmental covariates. The observed H. contortus prevalence rates did vary between the countries showing high values in Switzerland (77%) and Italy (73%) compared to Ireland (4%). Spatial patterns of H. contortus distribution were detected in Switzerland and Italy with a north-south gradient. The latent factor analysis highlighted the importance of seasonality and annual cyclicity within country (particularly in southern Italy), while mean temperature and rainfall dominated between country variations in the prevalence of H. contortus infection.

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“…This genus was similarly predominant on goat farms in Norway (Domke et al, 2013), France (Chartier & Reche, 1992), Greece (Papadopoulus et al, 2003) and Spain (Valcarcel et al, 1999). Under colder laboratory conditions Teladorsagia cicumcincta reach the infective stage to a larger extent than those of Trichostrongylus colubriformis (O'Connor et al, 2006).…”

Section: Discussionmentioning

confidence: 97%

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

2014

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SummaryThe aim of this study was to examine the impact of grazing management and other risk factors (age, treatment practices) on seasonal activity of gastrointestinal (GI) parasites in goats. Goat flocks naturally infected with GI parasites reared on four Lithuanian farms representing different management regimes were examined during the grazing season in 2011/2012. On three farms the adult goats were grazed in different ways on open pastures (with or without supplementary feeding) or tethered. On one farm all animals were kept indoor (zero-grazing). On each farm, samples were collected at monthly intervals from 13 -15 adult and 10 kids. The results showed that grazing of adult goats with feed supplementation or kept indoor, shed the lowest number of strongyle eggs when compared to those kept on pasture (P < 0.05). Delayed turnout and zero-grazing significantly reduced excretion of strongyle eggs but increased the output of oocysts when compared to those grazed on set-stocked pasture together with adult goats. The most prevalent genus on all farms and in both age groups of goats were Teladorsagia spp. This study demonstrates that goats are infected with mixed species of parasites, but proportions of these parasites differed in different grazing management systems. The grazing management, age and season were all major factors that had an impact on GI parasite infection.

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Prevalence of gastrointestinal helminths, lungworms and liver fluke in sheep and goats in Norway

Cited by 60 publications

References 25 publications

Lungworm Infection in Small Ruminants in and Around Wolaita Soddo Town, Southern Ethiopia

Lungworm Infection in Small Ruminants in and Around Wolaita Soddo Town, Southern Ethiopia

Haemonchus contortus: spatial risk distribution for infection in sheep in Europe

The impact of grazing management on seasonal activity of gastrointestinal parasites in goats

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