Karami, M., Rahimian, Y. (2022). Performance, thyroid hormones activities and antioxidant status in broilers of using Eucalyptus and Rosemary leaf powders , reared under heat stress condition. , 11(43), 63-74. doi: 10.22092/aasrj.2022.354493.1233
Morteza Karami; Yasser Rahimian. "Performance, thyroid hormones activities and antioxidant status in broilers of using Eucalyptus and Rosemary leaf powders , reared under heat stress condition". , 11, 43, 2022, 63-74. doi: 10.22092/aasrj.2022.354493.1233
Karami, M., Rahimian, Y. (2022). 'Performance, thyroid hormones activities and antioxidant status in broilers of using Eucalyptus and Rosemary leaf powders , reared under heat stress condition', , 11(43), pp. 63-74. doi: 10.22092/aasrj.2022.354493.1233
Karami, M., Rahimian, Y. Performance, thyroid hormones activities and antioxidant status in broilers of using Eucalyptus and Rosemary leaf powders , reared under heat stress condition. , 2022; 11(43): 63-74. doi: 10.22092/aasrj.2022.354493.1233

Performance, thyroid hormones activities and antioxidant status in broilers of using Eucalyptus and Rosemary leaf powders , reared under heat stress condition

علوم و فنون دامپروری
Volume 11, Issue 43, September 2022, Pages 63-74    PDF (1.66 M)
Document Type: Research Paper
DOI: 10.22092/aasrj.2022.354493.1233
Authors
Morteza Karami* 1; Yasser Rahimian2
1Head of Animal Science Department
2Phd Student
Abstract
The present experiment was conducted to determine the effects of using eucalyptus and rosemary leaves on the growth performance, antioxidant status and thyroid hormones activities in chickens reared under heat stress. 300 broilers 31-day-old Arbor Acres plus were randomly divided into the 3 treatments and 5 replicates with 20 birds each. Treatments were included: control as basal diet, diet containing 0.5% eucalyptus and 0.5% rosemary leave powder. Heat stress created by high ambient temperature and electric heater from 12:00 to 16:00 with the closing of doors and windows, and ventilation from 1 to 42 days. The results study showed that rosemary powder had increased body weight and daily weight gain, but did not influence on feed conversion ratio instead. The eucalyptus supplementation increased the spleen and the bursa of fabricious weights. The activity of glutathione peroxidase GPX, total antioxidant capacity TAC, alkaline phosphatase ALP enzymes and corticosteroid hormones CE increased significantly and decreased the MDA serum compared to eucalyptus and control diets (p≤0.05). The significant increase T4 hormones compared to rosemary in chicks were fed by eucalyptus (p≤0.05). The rosemary powder supplementation significantly reduced T3 and T4 hormones compared to control (p≤0.05). We could conclude that the rosemary powder supplemtation may improve the growth performance, increase the antioxidant activities and decreases thyroid hormones in broiler chicks. Additionally, eucalyptus powder supplementation increased liver enzymes significantly.
Keywords
Antioxidant; Eucalyptus; Performance; Rosemary; Broiler
References
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