Efeito da aplicação de complexo vitamínico e mineral na recuperação eritrocitária e no desempenho de ovinos parasitados

Abstract

Controlling parasitism is fundamental to achieving productive efficiency in sheep. Weaned lambs are more susceptible to Haemonchus contortus infection, which is a hematophagous parasite, causing severe anemia in animals. Therefore, the aim of this study was to evaluate the effect of the a complex vitamin and mineral treatment, applied together with the administration of an effective anthelmintic, in parasitized lambs, with characteristic signals of Haemonchus contortus infection, on erythrocyte recovery and weight gain. Sixty male and female Australian Merino lambs, 8 and 9 months old, were divided into four groups: control; formula 1 (Iron Dextran, Organic Phosphorus, Vitamin B12 and substances that aid in erythrocyte recovery); formula 2 (Iron Dextran, Organic Phosphorus and Vitamin B12); and formula 3 (substances that aid in erythrocyte recovery). Hematocrit, total erythrocytes, conjutive staining, total plasma protein and weight gain were analyzed. The results were subjected to analysis of variance (ANOVA) and repeated measure were performed. All groups presented erythrocyte recovery during the study, but in the first seven days, only the animals in the control group did not improve, showing lower results (p = 0.03) than the other treatments. In weight gain there was no difference (p = 0.44) between treatments, only between the periods (p> 0.001). Conjugation staining did not differ between groups (p = 0.174). Therefore, it is concluded that the administration of complex vitamin and mineral, administered together with efficient anthelmintic, promotes a fast erythrocyte recovery in parasitized lambs with characteristic signs of hemoncose.