This experiment was conducted to study that effect of a phytogenics (herbal mixture) supplementation as alternative to antibiotics on the growth performance and immune response in broilers. Three thousand broiler male chicks at 1 day of age were housed in floor pens and divided into five experimental groups with five replicates of 120 birds each. The first group was fed the basal diet without any additive in feed or water; the second group was fed the basal diet, and the drinking water was supplemented with mixture of antibiotics (Doxycycline 1 g/5 L + Colistine sulfate 1 g/5 L) for the first 10 days of life. The other three treatments of chickens were fed the control diet supplemented with herbal mixture at a level of 0.5, 1.0, and 1.5 kg/ton, respectively. Dietary herb mixture supplementation improved growth performance significantly in comparison with control group. In addition, herb mixture supplementation reduced plasma total cholesterol and triglycerides concentrations, whereas, high density lipoprotein HDL-cholesterol and glutathione peroxidase (GPX) were increased significantly. Furthermore, herb mixture supplementation increased plasma levels of total protein and antibodies titers for Newcastle disease virus before and after the infection. It could be concluded that dietary herb mixture supplementation had positive effects on growth performance, antioxidative properties, and humoral immunity in broiler chickens.
Environmental Science and Pollution Research – Springer Journals
Published: Mar 12, 2018
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