title: Clinical and morphological investigations on the incidence of forms of rickets and their association with other pathological states in broiler chickens.
abstract: The purpose of investigations was to determine, by means of pathomorphological methods, the incidence of different rickets forms and their role for the occurrence of other illnesses in broiler chickens in Bulgaria. Clinical, blood biochemical, gross anatomy and histological investigations were carried out in broiler chickens with signs of rickets. The studies were performed in 12 broiler flocks in 4 farms located in different regions of the country. Based on macro- and microscopic lesions, alterations specific for hypocalcaemic rickets were observed in two farms, whereas signs of hypophosphataemic rickets - in the other two. The rickets diagnosis was confirmed by analysis of blood serum calcium, magnesium and inorganic phosphate concentrations. At the age of 30-35 days, various pathological states were observed in the same farms. The presented results suggested that existing problems in studied flocks were associated with an earlier occurrence of rickets.
authors: Department of General and Clinical Animal Pathology, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria. idinev@uni-sz.bg
authors: I
authors: I
authors: Dinev
mesh_terms: D000818:Animals; D002031:Bulgaria / Q000453:epidemiology; D002645:Chickens; D005121:Extremities / Q000473:pathology; D015994:Incidence; D011201:Poultry Diseases / Q000453:epidemiology / Q000473:pathology*; D012279:Rickets / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D013977:Tibia / Q000473:pathology