Some 4,965 chickens were culled and 3,750 eggs destroyed at a poultry farm in Gurudaspur sub-district in Bangladesh's Natore district, about 165 km northwest of capital Dhaka on Sunday night after detection of avian influenza in the farm, Xinhua reported. Owner of the farm Abul Kalam Azad contacted with the local Livestock Department when his chickens started dying few days back, private news agency UNB reported Monday. Later, a livestock official collected sample of some dead chickens and eggs from the farm and sent those to local laboratory for test. Later, the chickens were culled and eggs destroyed when the laboratory sent report of detection of avian influenza on Sunday. The culled chickens and eggs were dumped under the soil in presence of the senior officials on the same night. Deputy Commissioner SM Ehsan Kabir of the district was quoted assaying that necessary measures have been taken to check the spread of the bird flu in the district. The avian influenza virus was first detected in a poultry farm in Savar, about 30 km northwest of Dhaka early in 2006.