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  • Title: Response of broilers to supplementation of Salvia officinalis L. essential oil in hot ambient conditions.
    Author: Akdağ A, Bozbay CK.
    Journal: Trop Anim Health Prod; 2024 Oct 01; 56(8):308. PubMed ID: 39352605.
    Abstract:
    Heat stress has various detrimental effects on poultry production. The aim of the study was to alleviate the effects of heat stress in broiler production. For this purpose, 288 one-day-old broiler chicks (Ross 308) were obtained from a commercial hatchery and randomly allocated to one of three treatment groups; CON: corn-soybean meal based commercial diet, SEO100: CON with 100 mg/kg Sage essential oil (SEO) and SEO200: CON with 200 mg/kg SEO with 96 birds in each group (4 replicates each) in a completely randomized design under hot ambient temperatures for 42 days. No differences were observed in the body weight, feed intake, and feed conversion ratio at 42 days of age among groups. However, there was a significant increase in 21-day body weight in SEO200 chicks compared to CON. Furthermore, the addition of SEO significantly decreased the mortality rate under heat stress conditions. The total oxidant status value was lower in broiler chickens in which SEO was added to their diets. While the total antioxidant status value was higher in SEO100 chicks, it did not show a linear increase. Additionally, the results demonstrated that the addition of SEO to broiler diets under heat stress did not have a significant effect on inspected meat quality traits, with the exception of the b*(yellowness) value of breast muscle. In conclusion, the results of this study indicate that 200 mg/kg SEO can be added to diets for the welfare of broiler chickens under heat stress conditions for struggling with oxidants and increasing viability. Further research is needed to investigate the antioxidant activity and meat quality of different levels of SEO in hot ambient conditions.
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