Poungpong , Kanokporn, Eisuke Sumiyoshi, and Chaiyapoom Bunchasak. 2019. “Effect of Gallotannoids on the Productive Performance and Stress Index of Broiler Chickens under Stress Conditions”. International Journal of Poultry Science 18 (2): 63–68. https://doi.org/10.3923/ijps.2019.63.68.