TY - JOUR T1 - Effects of High Ambient Temperature on Blood Parameters in Red Jungle Fowl, Village Fowl and Broiler Chickens AU - Soleimani, A.F. AU - Zulkifli, I. JO - Journal of Animal and Veterinary Advances VL - 9 IS - 8 SP - 1201 EP - 1207 PY - 2010 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2010.1201.1207 UR - https://makhillpublications.co/view-article.php?doi=javaa.2010.1201.1207 KW - Heat stress KW -jungle fowl KW -village fowl KW -broiler KW -blood parameters KW -Malaysia AB - Two experiments were conducted to compare heat tolerance of Red Jungle Fowl (RJF), Village Fowl (VF) and Commercial Broilers (CB) at a common age and a common body weight. In exp. 1, RJF, VF and CB of a common age (30 days old) were exposed to 36±1°C for 3 h. Creatine kinase activity was significantly higher in CB than those of RJF and VF. Both RJF and VF had significantly lower serum K and Na concentration than their CB counterparts. In exp. 2, RJF, VF and CB of common body weight (930±30 g) were subjected to similar procedures as in exp. 1. Neither genotype nor stage of heat treatment had significant effect on serum levels of cholesterol, Cl, CK and LDH. The CB was significantly more hyperglycemic than RJF following heat treatment. In both experiments, irrespective of stage of heat treatment RJF had lower heterophil/lymphocyte ratio than VF and CB. It can be concluded that intense selection for rapid growth in CB has resulted in tremendous alterations in their ability to withstand high ambient temperature as compared to the RJF and VF. It is also apparent that genetic differences in body size per sec may not determine breed or strain variations in response to heat stress. ER -