Abstract
This experiment was conducted to evaluate the effects of dietary turmeric rhizome powder (TP) on performance, blood metabolite, immune system, antioxidant status, and relative weight of organs in pre and post heat stressed broilers. Two hundred and sixty-four (264) day-old male Arian broiler chicks were randomly allotted to three dietary treatments containing 0, 0.4 or 0.8% turmeric powder. Each diet was fed to four replicates of 22 birds each. Heat stress was applied for 5 h (33°C) from 28 to 42 days. Two birds from each replicate were randomly selected and blood samples were taken to collect the serum, plasma and whole blood. These were slaughtered to determine the relative weight of organs pre (28 days PHS) and after heat stress (42 days AHS). TP did not affect feed intake, body weight, feed conversion ratio (FCR), production index, and protein and energy efficiency ratio of broilers. Blood cholesterol and low density lipoprotein (LDL) decreased and blood high density lipoprotein (HDL) increased when fed TP in PHS and AHS birds. TP did not affect serum triglyceride, protein, antibody production against sheep red blood cell (SRBC), IgG, IgM and Newcastle vaccination (ND) in PHS and AHS. TP suppressed the enzyme activity of lactate dehydrogenase (LDH), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP) of heat stressed birds. The enzyme activity of creatine kinase (CK) in AHS and superoxide dismutase (SOD) in PHS were not affected by TP diets. TP diets increased blood activity of glutathione peroxidase (GPx) and SOD and decreased blood thiobarbituric acid reactive substances (TBARS) index. The H:L ratio, relative weight of bursa of fabircus and abdominal fat decreased in birds fed TP diets. TP diets did not alter percentage of bone Ash, and P of heat stress broilers; however, it increased bone Ca of heat stressed broilers. It can be concluded that the supplementation of TP to diets, decreased the activity of dehydrogenase enzyme, stressor index, and improved the antioxidant status without affecting performance and the immune system of heat stressed broilers. Key words: Turmeric powder, immune and antioxidant system, blood metabolite, broiler
Highlights
This experiment was conducted to evaluate the effects of dietary turmeric rhizome powder (TP) on performance, blood metabolite, immune system, antioxidant status, and relative weight of organs in pre and post heat stressed broilers
The enzyme activity of creatine kinase (CK) in after heat stress (AHS) and superoxide dismutase (SOD) in pre heat stress (PHS) were not affected by TP diets
The purpose of this research was to investigate the effects of dietary turmeric powder (TP) on performance, blood metabolite, immune system, antioxidant status, and relative weight of organs in pre and post heat stressed broiler chickens
Summary
Heat stress (HS) is the major cause of quality deterioration in meat and meat products (Sahin et al, 2006). Heat stress stimulates the metabolic oxidation capacity of skeletal muscle by increasing the release of Hosseini-Vashan et al 16119 corticosterone and catecholamines and initiates lipid peroxidation in cell membranes (Sahin et al, 2001; Mujahid et al, 2007). Supplementation of antioxidant to diets may decrease the oxidative reaction in chicken products under heat stress condition (Flachowsky, 2000, 2002). Turmeric powder is used as a food additive, preservative and coloring agent in Asian countries, including China and South East Asia. The performance parameters of broilers fed turmeric rhizome powder (TP) were improved (Suvanated et al, 2003; Zeinali et al, 2009). Birds fed Turmeric powder had lower feed intake and feed conversion ratio (FCR) (Wuthi-Udomler et al, 2000; Samarasinghe et al., 2003; Durrani et al, 2006). Emadi and Kermanshahi (2007b) reported an improvement in antibody response against sheep red blood cell (SRBC), IgG and IgM
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
