- REVISÃO BIBLIOGRÁFICA - Broiler adaptation to post-hatching period

摘要: In the latest years more attention has been given to mechanisms for bird adaptation at post-hatching period by management of environmental conditions and formulations diets offered during this when digestive, immune, thermo-regulating systems suffer slight changes. posthatching period, digestive system is anatomically complete, but its functionality still immature in relation adult birds. The chick immunity depends on maternal antibodies transferred egg just before laying. addition, variations within thermal comfort zone might affect initial development chick. For example, high temperatures may induce hyperthermia with dehydration, while low lead hypothermia responsible pulmonary hypertension syndrome. conclusion, productivity be enhanced good are chicks from last embryo first days after hatching.