Abstract

Hasan S. A. Jawad, Ahmed Jawad Al-Yaseri and Jassim Kassim Menati

The field study was conducted on broilers farms in Al Muthanna Governorate, a total of 22 thousand broiler chicks were used, distributed to the cities of Samawah, Rumaitha, Warka and Al Khader, 60 chicks were isolated and subjected to eye and histopathological examinations. These chicks were divided into three groups: The first group: chicks infected with omphalitis. The second group: chicks infected with yolk sac infection. The third group: uninfected chicks (control group). The results of the study indicated that the rate of infection and mortality in yolk sac infection was significantly higher (P≤0.05) compared to omphalitis, as for the pathological examinations, pathological changes were observed in the livers of infected chicks from paleness in the case of omphalitis and severe congestion in the case of infection of the yolk sac, the histopathological examinations, it was noted that there were degenerative changes in the hepatocytes in the case of omphalitis and necrotic changes in the case of infection of the yolk sac.