Journal
LIVESTOCK SCIENCE
Volume 242, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.livsci.2020.104286
Keywords
Quercetin; Growth performance; Meat stability; Immunological responses; Broiler chickens
Categories
Ask authors/readers for more resources
This study was conducted to determine the effect of quercetin supplementation on growth performance, meat stability, excreta gas emission, and immunological response in broiler chickens. A total of 640 broiler chickens were randomly assigned to 1 of the 4 treatments (10 replicates per treatment with 18 chickens per pen). Dietary treatments: basal diet contained 0, 250, 500, and 1,000 mg quercetin/kg. The chronic heat stress condition was maintained (32 degrees C) for 24 h from the fourth day of the study. Growth performance was assessed on d 0, 7, 21, and 35, whereas all other response criteria were determined on d 35. Overall, a quadratic effect of quercetin supplementation on body weight gain (BWG) was observed when quercetin supplementation was increased (P < 0.05). And these responses were maximized in the broiler chickens fed diet with 250 mg quercetin/kg. There was a linear and quadratic effect of quercetin supplementation on Lactobacillus counts (P < 0.05). As the dietary supplementation of quercetin increased, the content of total superoxide dismutase (T-SOD) and total antioxidant capacity (T-AOC) linearly increased (P < 0.05), while the malondialdehyde (MDA) concentration linearly reduced in breast muscle (P < 0.05). There was a linear decrease in abdominal fat content when quercetin supplementation was increased (P < 0.05). The concentration of tumor necrosis factor-alpha (TNF-alpha) linearly increased by adding an increasing dosage of quercetin in the diet (P < 0.05). In conclusion, the addition of quercetin in the diet could improve BWG which reflected a beneficial effect of quercetin for growth performance. Increasing dose range from 0 to 1,000 mg quercetin/kg could linearly increase the content of T-AOC and T-SOD, and reduce the concentration of MDA, which reflected that the increased quercetin supplementation can enhance meat stability. Furthermore, supplementation of quercetin could increase the level of TNF-alpha, which indicated the ability of quercetin to enhance the immune capacity of broiler chickens.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available