Effect of Heat Stress on Blood Constituents and its Relation to Production in Poultry

Poultry production progress a goodsource of meat and eggs are very urgentlyneeded ln many under developing countries (i.e Egypt). Not only human population is increasing rapidly but also the standard of living is rising as well. Factors affecting Poultry performance have to be looked upon. the effect of high ambient temperature on the growth rate occasionally been assessed in subtropices. The biological activity of the animal is affected by the environmental conditions. The Present work aimes to study the effect of heat stress on some blood constiluents (i.e) triiodo thyronine(t),thronine (t),alkqline phosphatase (ALK)glutamic pyruvic transaminase (cpt), glutamic exaloacetic transaminase (cot) and their relalion to egg number produced.