European Journal of Experimental Biology Open Access

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Epidemiology of newcastle disease and its economic impact in chad

Ban-Bo Bebanto Antipas, Kebkiba Bidjeh and Mopate Logtene Youssouf

The purpose of the study has been to present the situation of Newcastle disease and to estimate the economic losses associated with mortality. A study has been conducted in 2007 in nine vets and test a vaccination campaign has been conducted in 2011 in three veterinary sectors. For the study, the choice of sectors was associated with a mission to raise awareness about avian influenza along the border west of the country. The selection of households for the study has been done randomly and availability producers. The mass vaccination campaign in related areas located nearby veterinary border regions of neighboring countries infected with avian influenza. For data collection sheets have been developed and distributed. Chickens represent 97% of the poultry. An average of 28 heads per household was volatile observed. Mortality due to Newcastle disease was 55%. It occurs throughout the year with major peaks in December and April, corresponding to periods of high concentration of poultry, the beginnings of climatic changes and the period of intensive fieldworks. The period from August to November appears as the replenishment period poultry. The duration of Newcastle disease in the herd is related to the farming system and reinfection of pets. The infection takes place in the trash and feeding areas. A series of measures of control to this disease has been proposed to limit the loss of poultry.