Mortality pattern and disease incidence in ducks under intensive management.

摘要

The mortality pattern and disease incidence in ducks under intensive management were studied in an experimental duck unit at Bhubaneswar. Mortality data from 2003-07 were used in this study. The mortality data of 5 years included 3547 deaths in egg-type ducks and 849 in broiler ducks. The breed-wise mortality showed a significantly higher death in Khaki Campbell compared to native layers, White Pekin, native x Khaki cross and Moti ducks. Insignificant differences on mortality pattern between the age groups was observed. 11 disease conditions were recorded in this study. Colibacillosis was the major cause of deaths among young and grower ducks. Adult layer ducks also suffered from Escherichia coli infections. Egg bound and egg peritonitis were recorded frequently in layer ducks. Several cases of cystic, misshaped and necrotic ovarian follicles were also recorded. Miscellaneous disease conditions like head injury, heat stress and drowning were observed. Other causes of death included aspergillosis and aflatoxicosis.