Year: 2016 | Month: February | Volume 6 | Issue 1
Prevalence and Financial Losses of Lungworm Infection in Sheep in South Wollo Zone, Ethiopia
Abstract:
This cross-sectional study was conducted between November 2013 and March 2014 to determine the prevalence of lungworms in sheep in two districts of South Wollo zone, Amhara region, Ethiopia. Alongside the financial losses encountered due to lungworm infection in sheep during retrospective study in Dessie municipal Abattoir was also assessed. A total of 477 fecal samples collected from sheep were examined using modified Baerman technique. Out of which 218 were found to be positive (45.71%). The lungworm species were Muellerius capillaris 212(23.48%), Dictyocaulus filaria 39(8.18%), Protostrongylus rufescens 28(5.87%) and mixed infection 39(8.18%) either with two or three species. The prevalence of lungworm infection was significantly different between sexes (χ2=32.2, P= 0.000), age groups (χ2=72.561, p=0.000) and body conditions (χ2=113.66, p=0.000). Prevalence was significantly higher in female sheep (57.94%), sheep of above 3years of age (69.01%) and poor body condition (89.62%) than males, sheep of less than 3years of age (<1 year, 1-3years) and medium/good body conditions, respectively. Moreover, sheep showing respiratory clinical syndromes, kept under extensive management system and sampled during wet season showed statistically significant variation (p<0.05) when compared with those sheep without respiratory syndrome, kept under semi-intensive management system and sampled in dry season, respectively. The mean annual financial losses by organ condemnation and carcass weight reduction due to lungworm infection in sheep slaughtered at Dessie municipal abattoir were estimate to be 7445549.6 ETB, equivalent to 402462.1USD.
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