Spiking mortality syndrome in broiler chickens clinical and morphological examinations of the cases recorded in Bulgaria

摘要

Clinical and morphological examinations were carried out in two broiler flocks with twenty thousand chickens each. The morbidity and mortality were followed on the basis of clinical signs and gross pathological examinations. Blood samples of affected chickens were obtained for the determination of blood sugar levels. Our results showed low morbidity, high mortality and a markedly depressed growth.