Parasite population dynamics in pigs infected with Trichuris suis and Oesophagostomum dentatum

Petersen, Heidi Huus; Andreasen, Arne; Kringel, Helene; Roepstorff, Allan; Thamsborg, Stig Milan

doi:10.1016/j.vetpar.2013.09.030

Cited by 16 publications

(3 citation statements)

References 33 publications

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“…Coexistent parasites may have an influence on each other. Antagonistic effect of A. suum and O. dentatum ( 9 ), and T. suis and O. dentatum ( 24 ) was found in pigs. These interactions may result from the direct impact of parasites on each other or the host's immune response to infection.…”

Section: Discussionmentioning

confidence: 94%

Occurrence of intestinal parasites in pigs in Poland - the influence of factors related to the production system

Kochanowski

Karamon

Dąbrowska

et al. 2017

Journal of Veterinary Research

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IntroductionThe aim of study was to estimate the prevalence and intensity of intestinal parasite infections in pigs in Poland and evaluate the influence of factors related to the production system on the infection intensity.Material and MethodsA total of 70 pig farms of all Polish provinces, differing in the herd size and production system, were selected for the study. Fresh faecal samples were collected from all age groups: suckling piglets, weaners, fatteners, and lactating sows. Moreover, data were obtained regarding the size of the herd, the use of paddock and all-in/all-out system, the presence of diarrhoea, and the type of flooring.ResultsParasite eggs or oocysts were detected in 57 of the 70 examined pig farms. Oesphagostomum spp. eggs were found in the largest number of farms (68.6%). Moreover, coccidia (42.9%), Ascaris suum(28.6%), Trichuris suis (21.4%), and Strongyloides spp. (11.4%) were detected. The highest prevalence of coccidia and Strongyloides spp. was found in suckling piglets, A. suum and T. suis in fatteners, and Oesphagostomum spp. in sows. Higher prevalence of parasites was detected in small farms than in medium and large farms, except the prevalence of coccidia, which was the highest in medium farms. Simultaneous infection with several parasites was more often detected than with one parasite. Odds ratio of parasites occurrence was higher in farms with paddock and litter floor and in farms which do not use all-in/all-out system.ConclusionRelatively high prevalence of intestinal parasites was found in pigs in Poland. Moreover, specific distribution of parasites in different age groups and farms of different size was observed. Influence of breeding factors on parasite prevalence was identified.

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Section: Discussionmentioning

confidence: 94%

Occurrence of intestinal parasites in pigs in Poland - the influence of factors related to the production system

Kochanowski

Karamon

Dąbrowska

et al. 2017

Journal of Veterinary Research

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“…We speculate that the observed lack of effect on the GM by infection could be due to the co-infection with two parasites ( A. suum and O. dentatum ). Previous studies have found that O. dentatum is able to change the immune response toward other parasites during co-infection 67 , 68 . Therefore, it can be speculated that an interaction between the two parasites on GM is occurring, and the co-infection of the two parasites may cancel out each other's effects on the GM.…”

Section: Discussionmentioning

confidence: 97%

Dietary seaweed (Saccharina latissima) supplementation in pigs induces localized immunomodulatory effects and minor gut microbiota changes during intestinal helminth infection

Bonde,

Mejer,

Myhill

et al. 2023

Sci Rep

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Brown seaweeds have a rich bioactive content known to modulate biological processes, including the mucosal immune response and microbiota function, and may therefore have the potential to control enteric pathogens. Here, we tested if dietary seaweed (Saccharina latissima) supplementation could modulate pig gut health with a specific focus on parasitic helminth burdens, gut microbiota composition, and host immune response during a five week feeding period in pigs co-infected with the helminths Ascaris suum and Oesophagostomum dentatum. We found that inclusion of fermented S. latissima (Fer-SL) at 8% of the diet increased gut microbiota α-diversity with higher relative abundances of Firmicutes, Tenericutes, Verrucomicrobia, Spirochaetes and Elusimicrobia, and lower abundance of Prevotella copri. In the absence of helminth infection, transcription of immune-related genes in the intestine was only moderately influenced by dietary seaweed. However, Fer-SL modulated the transcriptional response to infection in a site-specific manner in the gut, with an attenuation of infection-induced gene expression in the jejunum and an amplification of gene expression in the colon. Effects on systemic immune parameters (e.g. blood lymphocyte populations) were limited, indicating the effects of Fer-SL were mainly localized to the intestinal tissues. Despite previously documented in vitro anti-parasitic activity against pig helminths, Fer-SL inclusion did not significantly affect parasite egg excretion or worm establishment. Collectively, our results show that although Fer-SL inclusion did not reduce parasite burdens, it may modify the gut environment during enteric parasite infection, which encourages continued investigations into the use of seaweeds or related products as novel tools to improve gut health.

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“…Moreover, work performed with microsatellite loci has shown that host-associated populations have emerged following geographical isolation (Criscione et al, 2007). Another more recent study also demonstrated that concurrent infections of 2 different nematodes in pigs may affect infection levels (Petersen et al, 2014). Studies in pigs concurrently infected with Trichuris suis and Oesophagostomum dentatum clearly showed an antagonistic interaction between the 2 organisms at the expense of O. dentatum worm burdens.…”

Section: Nematodes Terrestrial Parasitic Nematodesmentioning

confidence: 98%

Anthropogenics: Human Influence on Global and Genetic Homogenization of Parasite Populations

Zarlenga¹,

Hoberg²,

Rosenthal³

et al. 2014

Journal of Parasitology

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Parasite population dynamics in pigs infected with Trichuris suis and Oesophagostomum dentatum

Cited by 16 publications

References 33 publications

Occurrence of intestinal parasites in pigs in Poland - the influence of factors related to the production system

Occurrence of intestinal parasites in pigs in Poland - the influence of factors related to the production system

Dietary seaweed (Saccharina latissima) supplementation in pigs induces localized immunomodulatory effects and minor gut microbiota changes during intestinal helminth infection

Anthropogenics: Human Influence on Global and Genetic Homogenization of Parasite Populations

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