Avaliação da influência do efeito do gengibre nas variáveis hematológicas de peixe

Abstract

The objective of this study was to determine the effect of ginger as a phytogenic additive in diets for juvenile tilapia Oreochornis niloticus440 tilapia were allocated in a completely randomized design in 20 tanks with volume of 350 L in five treatments with four replicates each. Experimental treatments consisted of the inclusion of powdered ginger at concentrations of 5, 10, 15 and 20 g Kg-1 and a control diet free of the additive. After the 60-day experimental period, blood samples were collected, 16 animals per treatment, for hematological analysis. In the variables hematocrit, spleen and leukocytes, the Kruskal Wallis test was applied. The variables erythrocyte, neutrophils, monocytes, lymphocytes and liver were applied parametric analysis of variance. The relationship between liver weight and total leukocyte number was evaluated using the Nadaraya-Watson estimator core using the smoothing parameter according to Fan and Gijbels methodology. The supplementation of tilapia diets with ginger influenced the hematological variables studied, as well as the liver weight. This supplementation does not imply a difference between the weight of the spleen. Ginger influenced the relationship between liver weight and total leukocytes