The number of sampled goats were calculated using the Thrusfield
26 formula with 50% expected prevalence; a 5% desired absolute precision, and a 95% confidence interval.
Where n = required sample size, Pexp = expected prevalence, d = desired absolute precision. Hence, 384 goats were selected for this research.
Study Methodology
Sample Collection Techniques
A total of 384 samples were collected from the skin of selected goats. Clinical examination was focused on the hair and visual inspection and palpation of the skin for lesions on all parts of the goats including the head region, the neck, thorax, flanks, rump, tail, and legs. Goats with signs of erythema, pruritus, and scale or crust formation were considered.