Ocorrência de parasitoses gastrintestinais em pequenos ruminantes criados no Assentamento Tubarão - Patos, Paraíba.

Abstract

Occurrence of gastrointestinal parasites in small ruminants raised in the Tubarão Settlement - Patos, Paraíba. In the Northeast area few information about handling practices, capable to maintain good sanitary conditions in the flocks, are available for the small producers. This work has as objective knows the situation of the parasitic diseases in ruminant created in the establishment Tubarão in the municipal district of Patos-Paraíba, so that effective control measures can be done. The experiment had duration from September of 2007 to July of 2008, where fecal samples of animals belonging to seven flocks were collected (A, B, C, D, E, F and G) for evaluation of the level of parasitic infection. It was made evaluation of the effectiveness of the used drogs. The initial data demonstrated that four of the seven studied properties were with more than 500 OPG. The largest peaks of infections were observed in the end of the dry period (December) and final of the rainy period (July), being caused by parasites of the superfamília Strongyloidea. Being considered the whole studied period the largest infection levels they happened in the dry period. A larger grade of parasitism was identified in sheep when compared with the goats species. In the sheep there was variation between the categories in agreement with the season. In the case of the goats, the adults were shown more infected. In the studied flocks the change of vermifuge was not a common pratical of the creators. The practices of used dosage were not being effective because 57,4% of the properties presented animals with an OPG above the acceptable. The maintenance of high parasitic load in flocks after dosage suggests the occurrence of antihelminthic resistance and contamination of the pastures. Until that most of the doubts is not clearead up to determine an outline more appropriate dosage to the area, it is recommended to accomplish periodic exams of fecal materials and to treat only when OPG goes superior to 500.