Influence of season and host age on wild boar parasites in Corsica using indicator species analysis

Foata, Joséphine; Mouillot, David; Culioli, Julia-Laurence; Marchand, Bernard

doi:10.1079/joh2005329

Cited by 28 publications

(22 citation statements)

References 24 publications

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“…In the current study, the higher prevalence and intensity of Metastrongylus spp. in piglets compared to other categories of pigs could be associated with the development of immunity, as this has been reported to occur elsewhere (Foata et al 2006).…”

Section: Discussionmentioning

confidence: 57%

Risk factors associated with occurrence of nematodes in free range pigs in Busia District, Kenya

Kagira¹,

Kanyari

Githigia

et al. 2011

Trop Anim Health Prod

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Nematode infections are a serious constraint to pig production, especially where free range pig keeping is practiced. This study investigated the epidemiology of nematodes in free range pigs in Busia District, Kenya. Three hundred and six pigs from 135 farms were sampled for faeces that were analysed for nematode eggs per gram (EPG) of faeces using the McMaster technique. The nematode eggs were also identified to genus and species based on morphology. A questionnaire on risk factors was also administered to the pig owners. The overall prevalence and mean nematode EPG were 84.2% and 2,355, respectively. The nematode eggs were identified as those belonging to Oesophagostomum spp. (75%), Strongyloides ransomi (37%), Ascaris suum (18%), Metastrongylus spp. (11%), Trichuris suis (7%) and Physocephalus sexalatus (3%). The prevalence of nematodes was positively correlated (p < 0.05) with the amount of rainfall in the division of the pigs' origin (all nematodes except S. ransomi). The prevalence of nematodes was also associated with the age of the pigs. A lower burden of nematodes was associated (p < 0.05) with a history of deworming (A. suum) and the provision of night housing (S. ransomi and Metastrongylus spp.). In conclusion, this study has provided information on nematode infections and the associated risk factors for free range pigs in Busia District, which can be used when implementing integrated control measures.

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Section: Discussionmentioning

confidence: 57%

Risk factors associated with occurrence of nematodes in free range pigs in Busia District, Kenya

Kagira¹,

Kanyari

Githigia

et al. 2011

Trop Anim Health Prod

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“…Examples of such analyses include faunal responses to agricultural intensification (Pocock & Jennings 2008), lichen communities (Rogers, Rosentreter & Ryel 2007), roadside vegetation (Rentch et al . 2005), and parasites (Foata et al . 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Numerous ecological and environmental management studies have sampled two or more groups at each of a number of sites but combined them into a single statistical analysis. Examples of such analyses include faunal responses to agricultural intensification (Pocock & Jennings 2008), lichen communities (Rogers, Rosentreter & Ryel 2007), roadside vegetation (Rentch et al 2005, and parasites (Foata et al 2006). Use of the meta-analytical techniques outlined here might clarify and strengthen the conclusions of these studies.…”

Section: O N S I S T E N C Y O F I N D I C a T O R S P E C I E Smentioning

confidence: 90%

Increasing the utility of Indicator Species Analysis

Bakker¹

2008

Journal of Applied Ecology

110

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Summary 1.The identification of species associated with or indicative of groups of samples is a common aspect of ecological research, including studies of environmental management. Indicator Species Analysis (ISA) permits statistically rigorous assessments of these indicator species, but its usage is currently restricted to simple designs. 2. I describe three improvements that greatly increase the utility of ISA. First, exact permutation tests require that the correct exchangeable units be permuted; these exchangeable units may vary among factors. Secondly, the consistency of indicators can be assessed using meta-analytic techniques to combine the results from multiple sites. Thirdly, while ISAs are classically conducted using abundance data, a simplified ISA can be conducted using binary (presence/absence) data. 3. These improvements are illustrated by identifying indicators of grazing treatment (inside or outside exclosure) at three sites in a southwestern ponderosa pine Pinus ponderosa forest. Most indicators were consistent among sites, and the number of significant indicators was reduced 37-40% by combining results from multiple sites. Species that occurred at multiple sites were more likely to be indicators than those present at a single site. 4. Simplified ISAs produced very similar results to classical ISAs: both methods identified the same group as having the maximum Indicator Value in > 93% of tests. Compared to abundance data, however, the presence/absence data used in a simplified ISA are easily collected and efficiently published in data tables or appendices. 5. Synthesis and applications . Meta-analytic techniques and simplified Indicator Species Analyses can increase the ability to analyse new or previously published data, and permit rigorous assessments of the consistency of indicator status spatially or temporally. Other recommendations to improve the utility of ISA include identifying organisms to as fine a taxonomic resolution as possible, providing detailed descriptions of groups and typologies, ensuring adequate sample sizes within groups, reporting the sample size and frequency of all species in all groups, and publishing data for all species -whether or not they are significant indicators -to prevent publication bias in future meta-analyses.

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“…Besides Trichinella spp., wild boars can harbour many parasites of zoonotic and economic importance. Gastrointestinal parasites and lungworms are commonly detected in European wild boars [31][32][33][34], and they can infect domestic pigs and vice versa. Parasitic infections in domestic pigs are commonly subclinical, but weight loss, diarrhoea, reduced growth, depression, fatalities, reduced carcass quality and chronic and paroxysmal coughing can appear [35][36][37][38], depending on the parasite genera and infection dose.…”

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confidence: 99%

Surveillance of important bacterial and parasitic infections in Danish wild boars (Sus scrofa)

et al. 2020

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Background: Similar to the situation in other European countries, Danish wild boars may harbour a wide range of pathogens infectious to humans and domestic pigs. Although wild boars must be kept behind fences in Denmark, hunting and consumption of the meat may cause zoonotic transmission. Moreover, most infections of wild boars are transmissible to domestic pigs, which may have important economic consequences. The aim of this study was to investigate whether Danish wild boars were infected with bacteria and parasites transmissible to humans or domestic pigs: Brucella suis, methicillin-resistant Staphylococcus aureus (MRSA), Salmonella spp., Trichinella spp., lungworms and gastrointestinal parasites, especially Ascaris suum. This is the first study to investigate the prevalence of these important pathogens in Danish wild boars. Results: Wild boars from eight enclosures were analysed over a 5-year period. All tested wild boars were negative for B. suis (n = 240), MRSA (n = 244), Salmonella spp. (n = 115) and Trichinella spp. (n = 232), while eight parasite genera were identified in the faeces (n = 254): Ascaris suum, Capillaria sp., Cystoisospora suis, Eimeria spp., Metastrongylus sp. (lungworm), Strongyloides ransomi, Trichuris suis and strongylid eggs, i.e. strongyles not identified to the genera. Eimeria spp. and Metastrongylus sp. had the highest prevalence (92.3 and 79.5%, respectively) and were identified in wild boars from all eight enclosures, while the remaining parasite genera were present more sporadically. Conclusions: Wild boars from Denmark constitute a low risk of transmitting B. suis, MRSA, Salmonella spp. and Trichinella spp. to humans or domestic pigs, while economically important parasites transmissible to domestic pigs are highly prevalent in the wild boar population.

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Influence of season and host age on wild boar parasites in Corsica using indicator species analysis

Cited by 28 publications

References 24 publications

Risk factors associated with occurrence of nematodes in free range pigs in Busia District, Kenya

Risk factors associated with occurrence of nematodes in free range pigs in Busia District, Kenya

Increasing the utility of Indicator Species Analysis

Surveillance of important bacterial and parasitic infections in Danish wild boars (Sus scrofa)

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