Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress
A., E., Al-Gamal, M., Abo-Gabal, M., Basuony, H., Saad, E. (2019). Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress. EKB Journal Management System, 11(1), 37-49. doi: 10.21608/eajbsc.2019.27332
El-Shafei A. A.; M. A. Al-Gamal; M. Sh. Abo-Gabal; H. A. Basuony; E. A. Saad. "Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress". EKB Journal Management System, 11, 1, 2019, 37-49. doi: 10.21608/eajbsc.2019.27332
A., E., Al-Gamal, M., Abo-Gabal, M., Basuony, H., Saad, E. (2019). 'Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress', EKB Journal Management System, 11(1), pp. 37-49. doi: 10.21608/eajbsc.2019.27332
A., E., Al-Gamal, M., Abo-Gabal, M., Basuony, H., Saad, E. Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress. EKB Journal Management System, 2019; 11(1): 37-49. doi: 10.21608/eajbsc.2019.27332

Broiler Productive and Physiological Performance under Different Heat Combating Practices during Acute Heat Stress

Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology
Article 4, Volume 11, Issue 1, June 2019, Page 37-49  XML PDF (1.31 MB)
Document Type: Original Article
DOI: 10.21608/eajbsc.2019.27332
View on SCiNiTO View on SCiNiTO
Authors
El-Shafei A. A.1; M. A. Al-Gamal1; M. Sh. Abo-Gabal1; H. A. Basuony2; E. A. Saad1
1Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
2Biological Applications Department, Nuclear Research Centre, A.E.A., Egypt
Abstract
An experiment was designed to study the effect of different heat combating practices during acute heat stress on productive and physiological performances of Cobb500 chicks. Total of 540 one-day old of Cobb500 chicks was randomly divided into six equal groups with three replicates (30 birds in each). The first group was subjected to neutral temperature (NT), the second group was under chronic heat stress as a control (CHS), the third group was exposed to early heat acclimation (EHA), the fourth group was exposed to feed restriction (FR), the fifth group was supplemented with 1 g vitamin C/Kg diet (Vit.C), and the six group was treated with a combination of the last three treatments (EFC). It was observed that, CHS group recorded the highest value in respiratory, mortality rate, serum liver enzymes activities (ALT and AST), serum glucose concentrations and the lowest body weight, feed intake, feed conversion ratio, serum concentrations of triiodothyronine (T3) and thyroxine (T4) hormones, serum immunoglobulin concentration, serum lipid profile levels, livability among groups, while, exposed chicks to different heat combating practices: NT, EFC, Vit.C, FR and EHA, respectively, decreased significantly chicks mortality, serum  corticosterone concentration hormone and improved the livability percentages, body weight, feed intake, feed conversion ratio,  serum immunoglobulin concentrations and  had better results for serum ALT and AST activities. Furthermore, EFC and NT groups recorded the highest significant EPEI values (18.38 and 17.48) respectively, and serum concentrations of triiodothyronine (T3) and thyroxine (T4) hormones compared to the other groups. It can be concluded that EFC treatment showed the best practical method compared to the other groups to enhance the production performance and immunity status followed by T5, T4 and T3.
Therefore, these methods can be applied in broilers farms to increase the economic return
Keywords
Acute heat stress; Broiler Chicken; and physiological changes
Statistics
Article View: 269
PDF Download: 475