Effect of organic Chromium on productive, physiological rates, and ameliorating oxidative stress induced of growing Japanese quail under high ambient temperature
This study was designed to determine the effect of Chromium methionine (CrMet) at different levels on growth parameters, blood constituents, immunity, and anti-oxidative properties of growing Japanese quail. A total of 150 7-day old unsexed Japanese quail chicks were randomly distributed to five dietary treatments of thirty birds to a treatment. Each treatment was replicated three times with ten birds to a replicate. Five isocaloric and isonitrogenous diets were formulated. CrMet was added to the basal diet at five different levels being 0, 200, 400, 600, and 800 mg /kg diet, respectively. CrMet supplementation improved body weight (BW) at 6 weeks of age by 2.3%. compared with those on diet 1 (control). Feed intake (FI) increased gradually by increasing CrMet levels in the diets compared with the control group and the group fed on 200 mg CrMet /kg diet. The best (P≤ 0.05) value of feed conversion ratio (FCR) was noticed in group fed 600 mg CrMet /kg as compared with other experimental groups. CrMet improved (P ≤ 0.01) the thymus, heart and testes weights, white blood cell (WBC) counts, hemoglobin (Hb), Packed cell volume (PCV%), and monocytes of growing Japanese quail. Also, Alanine aminotransferase (ALT) and total antioxidant capacity, while albumin, albumin/globulin ratio, aspartate aminotransferase (AST), total lipids, cholesterol, triglycerides, and lipid peroxide concentrations contents decreased significantly (P ≤ 0.01). In summary, inclusion of CrMet in growing quail diets may exert beneficial effects on growth parameters, blood constituents, immunity, and anti-oxidative properties.