Prevalence of Gastrointestinal Parasites in Cattle Slaughtered at Kaduna Abattoir, North West Nigeria

This study investigates the prevalence and species distribution of gastrointestinal parasites in cattle slaughtered at the Kaduna metropolitan abattoir, located in Nigeria's North West geopolitical zone. Gastrointestinal parasitism remains one of the most economically significant health challenges facing the Nigerian livestock sector, contributing to weight loss, reduced productivity, and mortality, particularly in cattle populations managed under extensive and semi-intensive systems. Using a cross-sectional survey design, the study examined abomasal and intestinal contents from 200 cattle carcasses over a four-month period. Parasites were identified using standard coprological techniques including floatation, sedimentation, and direct smear methods. Secondary data on animal age, sex, and breed were obtained from abattoir records. The prevalence of each parasite genus was expressed as a percentage of the total examined animals. Findings revealed that 68 percent of examined cattle harboured at least one gastrointestinal parasite species, with Haemonchus contortus, Cooperia spp., and Oesophagostomum spp. among the most frequently recorded. Mixed infections were noted in 42 percent of positive cases. Younger animals and zebu breeds showed higher parasite burdens relative to older crossbred animals. The study identifies seasonal patterns and animal management practices as significant determinants of infection intensity. Recommendations include the adoption of strategic anthelmintic treatment programmes and improved nutrition for grazing cattle in the region. The findings provide a baseline dataset for parasite control planning in North West Nigeria. Keywords: gastrointestinal parasites, cattle, abattoir, Kaduna, prevalence.