Effect of Electrolytic Material Feeding on Blood and Carcass Traits of Broiler under Intense Heat Condition in Summer

This study was conducted to investigate the effect of feeding the electrolytic materials on blood and carcass traits of broiler during transportation exposed under intense heat condition in summer. The broilers were selected on the day when the outside temperature was about 32 to provide heat stressed environment. Broilers reared for 33 d were selected and fed with the electrolytic materials (NaHCO3, NaCl, KCl) for 2 days. Treatments were as follows; feeding the underground water for control, NaHCO3 (1.0%) + NaCl (0.5%) for treament 1, KCl (0.5%) + NaCl (0.5%) for treatment 2, KCl (1.0%) + NaCl (0.5%) treatment 3, KCl (0.5%) + NaHCO3 (1.0%) + NaCl (0.5%) for treatment 4 and KCl (1.0%) + NaHCO3 (1.0%) + NaCl (0.5%) for treament 5. pH of chicken meat increased for treatments group of electrolytic material, especially, that of treatment 3 was highest when compared to the other treatments. The frequency rate (%) of 1 + quality grade were 33.3, 60.0 and 83.3% at control, treatment 3, 4 and treatment 5, respectively. Occurrence rates of PSE were 50% for control and 13.3% for treatment 5. Corticosterone increased at the post-harvest period compared to the pre-harvest period of broiler and have small disparity between pre-and post-harvest only except treatment 3 when compared to control. pCO2 partial pressure of blood at the pre-harvest period was low in all treatments by heat stress, the disparity value of control was high for control, and those of treatment 4 and 5 were low compared to other treatments.