Prevalence of hypoderma infestation and cattle hypodermosis in tabriz slaughterhouse, Iran

Abstract

To determine the infestation status of the species in four seasons Hypoderma in Tabriz abattoir took on the cows. The study area Hypoderma bovis was the predominant species in cattle.Out of 400 cattle examined, 55 (13/75%) were infested with warble fly in the slaughter house. Highest prevalence of 13/75% was recorded in the month of December in slaughter house . The number of nodules present on the back region, flank region and hump of the animals ranged from 3 to 41. Prevalence of hypodermosis was greater in males than in females. In slaughter house, the prevalence was 26 (13%) and 22(11%) in males and females . In slaughter house, 4 , 4/5 , 6/5 , 9 % prevalence was found in bullock, cow, heifers and calves respectively. The nodule formation started in the first week of September and the perforation by the Hypoderma larvae from the skin was noticed in the month of November.