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  • Title: Prevalence and risk factors associated with swine gastrointestinal nematodes and coccidia in the semi-arid region of northeastern Brazil.
    Author: de Araújo HG, da Silva JT, Álvares FBV, Ferreira LC, Azevedo SS, Vilela VLR.
    Journal: Trop Anim Health Prod; 2020 Jan; 52(1):379-385. PubMed ID: 31392555.
    Abstract:
    In northeastern Brazil, with has a predominantly dry climate, farmers seek alternative sources of income and livelihood by the rearing pigs. The gastrointestinal parasites that affect these animals represent an obstacle in the production and can cause significant economic loss. This study aimed to determine the prevalence and risk factors associated with gastrointestinal nematodes and Coccidia in swine herds in the Sousa microregion, Paraíba state, northeastern Brazil. This was a cross-sectional study, and the sampling was designed to determine the prevalence of endoparasite-positive farms and pigs. We randomly selected 51 farms and 187 pigs. Fecal samples were collected from each animal, and eggs per gram and oocysts per gram feces were recorded. The data collected in the epidemiological questionnaires were used to determine the possible risk factors associated with endoparasite-positive animal status. The prevalence of gastrointestinal nematodes and Coccidia in the pigs was 79.5% (149/187). Coccidia were the most prevalent parasite found, with 56.6% (106/187) of the pigs testing positive, followed by nematodes 22.9% (43/187). Strongylidae was the most common nematodes found (67.5%, 29/43), followed by Trichuris sp. (30.2%, 13/43) and Ascaris sp. (2.3%, 1/43). In 29 coprocultures, Strongylidae was identified: Oesophagostomum (82.2%, 25/29), Strongyloides (62.0%, 18/29), and Hyostrongylus (27.5%, 8/29). Mixed nematode and coccidial infection were observed in 72.4% (21/29) of the samples. Relevant risk factors were related to the type of management adopted by family farmers. Changes in management measures could improve the health profile of farms.
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