Prevalence and Risk Factors Associated with Abomasal Nematodes Infection in Slaughtered Sheep in Khartoum State,Sudan

Abstract

A cross sectional study was conducted from February to May 2017 to investigate the prevalence of abomasal nematodes infection and to assess the relationship between the occurrence of these parasites and factors of age, sex, locality, body condition and breed in slaughtered sheep in Khartoum State, Sudan. A total of 350 abomasi were collected from three slaughterhouses namely: Karary, Nasr eldeen and Sabaloga in Karary, East Nile and Umbada localities respectively, and examined using postmortem examination (worm recovery). The result showed that abomasal nematodes infection is common in sheep and the prevalence is estimated to be 15.1% (35/533). Worm recovery revealed the presence of Haemonchus spp. in all positive infested sheep with abomasal nematodes 100% (53/33). The subsequent risk factors revealed association with sheep abomasal nematodes in the univariate analysis under significant level of P-value ≤ 0.5: sex (p-value = 0.000) and breed (P-value = 0.001). These factors may be contributing factors for the relatively high prevalence of abomasal nematodes among sheep.