Citrus pulp for parasite control for sheep on pasture / Polpa cítrica para controle de parasitas no pasto

ABSTRACT

Citrus pulp, wet and dehydrated, has importance as natural anthelmintic, by having in its composition essential oils with large amounts of terpenes, which are secondary metabolites that can cause interference in biochemical and physiological parasites functions. Packed cell volume (PCV) is a tool for indirect diagnosis of infections caused by Haemonchus contortus, since this parasite is a haematophagous nematode that causes severe anemia in animals. The aim of this study was to evaluate the results of PCV and fecal egg count per gram of feces (EPG) in sheep naturally infected fed with dried citrus pulp or wet citrus pulp silage. The experiment was carried out at Instituto de Zootecnia, from June to august/2012, with 45 Santa Ines ewe lambs divided into three groups (15 animals / treatment), according to weight and initial EPG. The ewes lambs from each treatment were kept at different paddocks of Panicum maximum cv. Aruana grass and supplemented with corn silage and with 1% (DM basis) of corn grain (T1 - control) or dried citrus pulp (T2) or wet citrus pulp silage (T3). Blood and feces samples were collected for packed cell volume determination by centrifugation and feces by examination in McMaster chambers. Analysis of variance was performed after data transformations (log (X+10)) and means compared by the SNK test at 5% probability (SAS). The means of group 1, 2 and 3 did not

RESUMO

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