Seasonal prevalence of eimeriosis in broiler chicken

Yasir Amin, Asim Aslam, Khurshaid Anwar, , Pervez, Zubair Ali


Background: Poultry sector is a vibrant segment of Pakistan economy and is a viable source of animal origin protein source. The growth of this sector is badly affected by different devastating problem’s in-term of mortality and morbidity. Hazara region is so called Georgia of Pakistan for poultry Production. Coccidiosis is an economically devastating problem in the area and throughout the year its cases have been reported.

Methods: The present study was conducted to know the round the year and seasonal prevalence of disease.During July 2012 to June 2013, a total of 1440 (n=1140) postmortem cases were carried out for disease diagnosis. Cases suspected for coccidiosis were confirmed by grass pathological lesions manifestation on the intestine and ceaca. Brief history including age, flock size was taken. For morphological examination, the oocytes were sieved and centrifuged at 3000 rpm with sugar solution.

Results: A total no of (n=1440) cases brought to outdoor patient services of Veterinary Research & Disease Investigation Centre, Abbott bad for disease diagnosis and treatment. Out of the total cases n=546 were found positive showing the overall prevalence of 37.91%.During hot and humid climatic conditions of monsoon season its prevalence was significantly high, during the month of August and September the observed infection percentage as 60.16% and 62.29 % respectively while low infection rate has been observed during the month of April which was 20.17%. Predominance of eimeriosis was high in young birds (3-4 weeks) and adult birds and less than 3 week of age birds was 74.90%, 17.94% and 7.14% respectively.

Conclusion: In present study, the higher prevalence of infection during the rainy season of monsoon observed indicating that warmth temperature and humid condition favors the oocytes sporulation and subsequent transmission.


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