Open AccessPrevalence of gastrointestinal helminths in sheep raised in intermediary geographical region of Paraiba state, Brazil
Author(s) -
José Gabriel Gonçalves Lins,
Sílvia Adriana Rodrigues,
Ana Valéria Mello de Souza Marques
Publication year - 2019
Publication title -
veterinária e zootecnia
Language(s) - English
Resource type - Journals
eISSN - 2178-3764
pISSN - 0102-5716
DOI - 10.35172/rvz.2019.v26.358
Subject(s) - oesophagostomum , strongyloides , veterinary medicine , herd , biology , trichostrongylus , feces , eggs per gram , helminths , zoology , nematodirus , ecology , immunology , medicine
The objective of this study was to evaluate the prevalence of gastrointestinal nematodes (GIN) of sheep herds from twenty-three sheep farms spread in the Alto Sertão region of Paraíba state, Brazil. Sample size was obtained through a simple random sampling, which was determined from the total amount of sheep head of the microregion. It was collected 262 faecal samples directly from the rectum of the animals, conditioned in polyethylene bags previously identified and kept refrigerated until processing. Faecal egg counting was performed and cultures in pool of each farm were done separately. It was observed a prevalence of GN of 84.7% (222/262) to the evaluated sheep. Furthermore, it was noted the presence of unless one positive animal for helminths in 100.0% of sheep farms. Among the 222 positive animals, 65.3% presented EPG 2000. Recovered third stage larvae showed that the most prevalent nematode was Haemonchus sp. (79.6%), followed by Trichostrongylus sp. (13.8%), Oesophagostomum sp. (3.6%), Strongyloides sp. (2.4%) e Bunostomum sp. (0.6%). Sheep herd from the Alto Sertão region of Paraíba state presents a high prevalence of GIN.