Effects of Season on Disease Frequency and Mortality of Poultry in Owerri Urban South-Eastern Nigeria

The study examined effects seasons have on diseases frequency and mortality of poultry birds in Owerri urban south-eastern Nigeria. The study therefore employed the use of secondary and primary data. Climatological data on rainfall, temperature, relative humidity and mortality of birds was collected from Nimet, Sam Mbakwe International cargo Airport, Imo State and ministry of livestock development Owerri respectively for a period of 16 years (2004-2019). Also 83 copies of questionnaire were used in the analysis. Results showed positive correlation between rainfall and relative humidity (0.517 and 0.747) and an R² of 39.98% with implies that, the higher the rainfall the higher the relative humidity, and by extension the higher the frequency of deadly poultry diseases (Coccidiosis, Gumboro, Fowl cholera, Fowl typhoid) and mortality especially for broilers as the cell immune response of layer birds in defending itself against diseases and viruses are greater than that of broilers. While Newcastle diseases, Fowl pox, Fowl typhoid, chronic respiratory diseases mostly affect birds in the dry season (November- March). While Newcastle diseases, Fowl pox, Fowl typhoid, chronic respiratory diseases mostly affect birds in the dry season (November- March).In conclusion, seasons of the year affect poultry and its production in particular in Owerri urban. It is recommended that farmers should make sure they adopt proper roofing methods, as well as maintain good sanitation/hygiene practices to minimize heat and the occurrence and spread of diseases which may adversely affect birds across seasons.