Abstract
Heat stress (HS) is one of the most significant stressors in the broiler industry in hot regions. In order to provide complete information on the impact of turmeric powder (TP) on hamartiology, biochemistry and thyroid hormones of broilers under thermoneutral conditions (TN) (22 ± 4 °C) and heat stress (HS) (34 ± 2° C), the present research was carried out. A 60 of one-day-old (Cobb) broiler chicks, 15 birds in each replicate either control (basal diet) or 0.5% turmeric. Chronic HS at 42 d of age resulted in significant decrease in HGB, PCV, RBCs, total protein, Albumin, serum T3 and T4, whereas increased H/L, triglycerides, cholesterol, LDL-cholesterol, uric acid, AST, ALT, ALP, TBIL, DBIL and creatinine significantly. Supplementation of 0.5% TP significantly increased HGB, PCV, total protein, while significant decrease in AST, ALT, ALP, uric acid, total cholesterol and triglycerides. Results indicated that groups receiving turmeric have improved lipid profile.
Highlights
Poultry, because of its low-fat content, is one of the key sources of animal protein for high quality meat
Effect of Heat stress (HS) and turmeric powder (TP) on Haematology of broilers in 42 day Chronic heat stress (HSC group) induced a significant decrease in red blood cells (RBCs), PCV and monocytes counts compared to thermoneutral control group (TNC) population
Effect of turmeric on serum metabolites measurements heat stress control (HSC) broilers had a significant decrease (P< 0.05) in total protein and albumin levels while significant increase in AST, ALT, alkaline phosphatase (ALP), T. bilirubin, D. bilirubin, Uric acid and creatinine when compared with TNC group
Summary
Because of its low-fat content, is one of the key sources of animal protein for high quality meat. Temperature is one of the most significant factors that can have a negative impact on poultry as a rise in temperature above the thermo neutral zone (18-24 ° C) due to the climate or other factors can cause cascading effects on thermoregulation and could be deadly for birds as birds are more susceptible to high temperatures [1]. When exposed to high temperatures in the environment, will break the redox body balance and result in oxidative stress that affects health of poultry species [2]. Chronic HS, which is a cycle of heat exposure followed by a comfortable temperature for the rest of the day [3]. Heat stress raises cholesterol concentrations, decreases serum protein concentrations and increases blood products.
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