الخلاصة:
In the present study, the aim was to establish the lesions assessment and determine the cause of death of 104 sheep. Necropsies were performed on 88 lambs and 16 ewes belong to the pilot farm Abassi Larbi in Bordj Bou Arreridj during a period of 18 months. The samples taken were examined by histopathology. Macroscopic lesions in lambs were classified as follows:
respiratory (21.35 %), digestive (16.01 %), cardiac (12.81 %), nerve (9.60 %), kidney (9.60 %), liver (9.25 %), lymph node (8.89 %), external (8.89 %) and musculoskeletal (3.55 %). The proportions of lesions in ewes were as follows: respiratory (15.06 %), cardiac (15.06 %), liver (13.69 %), ganglionic (13.69 %), external (12.32 %), digestive (6.84 %), musculoskeletal
(6.84 %), nerve (4.10 %) and genital (4.10 %). The mortality rate of the lambs was 13.05% and the causes of death were respectively respiratory disorders (26.13 %), digestive disorders ( 20.45 %) , starvation / hypothermia ( 19.31 %) , sepsis ( 18.18 %) , peritonitis ( 2.27 %) , congenital anomalies ( 2.27 %) and other causes ( 5.68 %). The mortality rate of ewes was
2.5 % and the causes of death were diseases of the respiratory system ( 37.5% ) , diseases of the nervous system ( 18.75 %) , reproductive diseases ( 12.5 %), digestive diseases ( 6.25 % ) and others pathologies ( 18.75 %).
