Evaluation of physiological response and performance by supplementation of Curcuma longa in broiler feed under hot humid tropical climate

Abstract

Dietary manipulation has been seen as one of the practical ways to ameliorate the adverse effects of thermal stress in the hot humid tropical climate. In order to investigate the influence of Curcuma longa (turmeric) rhizome powder on physiological responses and performance under hot humid tropical climate, 240 broiler chicks were randomly assigned to four dietary treatments having four replicates of 15 birds each in a complete randomized design. Broiler birds were fed basal diets and supplemented with 0 (CT), 4 (TG), 8 (FT), and 12 g (SG) of turmeric powder/kg of diet for 8 weeks. Data were collected weekly on feed intake and body weights. Blood samples were collected from eight birds per treatment at week 4 (starter phase) and week 8 (finisher phase) of the experiment for the determination of plasma 3,5,3'-triiodothyronine (T), superoxide dismutase (SOD), malondialdehyde (MDA). Rectal temperature of the birds was also taken. At 56 days of age, eight birds from each treatment were slaughtered for the determination of relative organ weights. Results showed that the final weights of the birds in FT were significantly higher than those of the birds in TG, SG, and CT. The weight gain of the birds in FT was higher than those of the birds in SG while those of SG were higher than those of TG whose values were higher than that of CT. The feed conversion ratio of the broiler chickens in CT was higher (P < 0.05) than those of other treatment groups while the birds in FT and SG had similar feed conversion ratios. SOD of birds fed turmeric rhizome powder was higher than the birds in the control group at both starter and finisher phases. Furthermore, MDA of the birds in FT was lower than those of the birds in the other treatment groups at the finisher phase. Plasma T was higher in the birds fed turmeric at the finisher phase than chickens in the control group. There was no difference in the rectal temperatures of the birds. To conclude, turmeric rhizome powder improved the physiological response and performance of broiler chicken under hot humid tropical climate in a dose-dependent characteristic and the optimum supplementation rate of 8 g/kg of diet was recorded.

Impact of Treating Hatching Eggs with Curcumin after Exposure to Thermal Stress on Embryonic Development, Hatchability, Physiological Body Reactions, and Hormonal Profiles of Dokki-4 Chickens

“…The decreased rectal and body surface temperatures for chicks produced from eggs treated with curcumin may be due to improving physiological body status and antioxidant capacity for treated chicks compared with control groups. The finding disagreed with those of Oke [ 39 ], who found no difference in the rectal temperatures of the birds fed diets supplemented with turmeric powder for 8 weeks.…”

In ovo injection of black cumin (Nigella sativa) extract on hatching and post hatch performance of thermally challenged broiler chickens during incubation

“…In the recent decades, attention has been given to the use of phytogenic additives as antioxidant constituents and growth promoters from spice, herbs, and their products ( Wenk, 2003 ; Pathak et al., 2016 ; Oke et al., 2017 ; Oke 2018 ) as a result of the several benefits obtained from them. Black cumin ( Nigella Sativa L. ) is an aromatic Ranunculaceae herbaceous plant, and its seeds have been used around the world for its pharmacological actions and medicinal properties for over 2,000 yr.…”

Broiler production challenges in the tropics: A review

“…Broadly, stress is the sum of defence mechanisms or non-specific responses of an organism when it is faced with abnormal situation or extreme demands (McEwen & Akil, 2020;Sahin et al, 2009). The negative impacts of heat stress on poultry have been reported (Marchini et al, 2016;Oke, 2018;Oke et al, 2020;Olanrewaju et al, 2010;Wan et al, 2018;Yahav et al, 1997). The responses of birds to high ambient temperature includes high body temperature; lower feed intake, feed efficiency, live weight and growth and performance (Ozbey & Ozcelik, 2004).…”