Controle da verminose ovina em base de anti-helmínticos naturais

Abstract

The control of the verminoses in sheep is carried out mainly with the use of vermifugs. However, most producers do not properly de-worf their herds, the drugs being administered without technical basis, which can result in a reduction in the efficacy of the products and in the appearance of parasitic resistance to various chemical groups. Due to this chemical resistance, the interest in developing and using other natural methods of parasite control has increased. The objective of this work was to evaluate the efficiency of natural anthelmintics, such as garlic pies and Neem pie added to mineral salt in the animals' diet, compared to the efficiency of a chemical anthelmintic. A total of 56 females of the Corriedale breed were used, divided into two lots. On day 0 animals were weighed, body condition score was evaluated, anemia was assessed by mucosal staining obtained from the scale pre-established by the FAMACHA card, stool collection for egg count per gram of faeces (OPG) and coproculture, blood collection for determination of Hematocrit and Total Plasma Proteins (PPT) for analysis and homogeneous division of lots. Afterwards, treatments were randomly distributed, with T1 - treatment with natural anthelmintics, garlic cake and Neem cake, mixed with mineral salt, offered at will in the trough for sixty experimental days; T2 - Dosing with Closantel, dosage of 1ml for each 10 kg / PV, orally, according to the dosage recommended by the manufacturer. After 15 days, faecal samples were collected for OPG and coproculture, FAMACHA anemia test and blood collection for hematocrit and PPT, totaling four (4) collections, including initial and final collections. In the initial and final collections, the ECC weighing and evaluation of the animals were also performed. No significant statistical difference was observed between the treatments, observing only a reduction of the OPG, and the other variables remained within the expected levels. It can be stated that the natural antihelminths, used in a consortium (Garlic Pie and Neem), added to the mineral salt and the chemical anthelmintic (Closantel), have not shown to be effective for the control of gastrointestinal nematodes in sheep.