Identification of gastrointestinal parasites in sheep in the coastal region of Northeast Brazil
DOI:
https://doi.org/10.33448/rsd-v14i9.49553Palavras-chave:
Ovinos, Parasitos, OPG, OOPG.Resumo
The Northeast of Brazil is the region with the largest sheep herd, representing 60.6% of the country's animals. Sheep farming is of great social and economic importance, with parasitic infections being one of the biggest obstacles faced by producers, mainly affecting family-based producers. Given this, the objective of the study was to identify gastrointestinal parasites in sheep in the metropolitan region of Natal, Rio Grande do Norte, Brazil. Fecal samples were collected to evaluate the number of eggs and oocysts per gram of feces (EPG and OPG, respectively) and for coproculture. In addition, blood was collected from the animals to perform hematocrit tests to evaluate globular volume, as well as global and differential leukocyte counts to quantify eosinophils. Fifty-nine fecal samples were analyzed, divided into groups of sheep raised on pasture (n=17), confined (n=22), confined without antiparasitic treatment (n=10), and confined after treatment (n=10). Blood was collected from the external jugular vein of these animals. The results showed a difference between pasture-raised and confined sheep in terms of EPG, OPG, hematocrit, and eosinophils. The helminth Haemonchus contortus was identified in the coproculture. Therefore, the form of management seems to influence the control of parasitism, while treatment had less influence than the management factor, which may be the result of the high rates of resistance to antiparasitic drugs already described in the literature.
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