Prevalence of Eimeria oocysts in Grass Litter (OPG) oocysts of Broiler chickens in Mahabad city

Coccidiosis is one of the most common diseases in the poultry industry in most parts of the world, caused by a protozoan Eimeria. This study aimed to investigate the frequency of Eimeria oocysts in warm litter (OPG) oocysts of broiler chickens in Mahabad city. Due to the distribution and abundance of poultry in Mahabad region, 5 units were randomly selected and sampled at the regional level. The poultry age selected for sampling was between 1 and 6 weeks. The basis for the detection of coccidial contamination was to identify the presence of Eimeria oocysts in the poultry litter. Samples were taken from each litter of drinkers and dunkers to prepare a complete sample that showed contamination of the whole bed with a low percentage of sampling error. The samples were then taken from the bed around the breweries to a distance of 4 meters, approximately 30-40 grams of the bed sample, and poured into a separate cleaner. Litter samples were also collected around the densities at a distance of 5 meters across the hall on both sides of the hall and were thrown into the corresponding container. For oocyst spray, 30 cc bicarbonate was added 2.5% to 5 g of feces and incubated at 28 ° C. Then the culture medium was stirred once every 12 hours and aerated with a pet paste. The findings of this study showed that most salons had the highest number of oocysts recorded in the fourth week. By comparing the total number of oocysts with dunkeries and drinkers, it can be seen that the number of oocysts around drinkers in all weeks was higher than dunkers.