Effect of Azadirachta Indica and Phyllanthus niruri Plant Meal on Performance and Health in Growing Calves

Background: During perinatal period, the immune system of calves is developing, making them vulnerable to infectious diseases that affect their growth or increasing mortality. Phytobiotics have various physiological effects on animals could improve performance and health. In this study, effect a feed herbal mixture made from Azadirachta indica Phyllanthus niruri were evaluated in dairy calves. Methods: Forty Holstein assigned into four groups (doses 0, 2, 3 4 g d-1) productive health parameters recorded. Results analyzed according completely randomized design which linear quadratic daily additive dose tested. Result: Increasing linearly reduced final body weight, weight gain calve starter intake, although it improved conversion. Blood tests showed hematocrit hemoglobin increased quadratically. The number segmented neutrophils linearly. Finally, pneumonia cases decreased These results suggest supplementation with additives efficiency status