A cross sectional study was conducted from November 2016 to April 2017 on 384 small ruminants brought for slaughter to Dessie Municipal Abattoir from Dessie and its surroundings. Coprological and postmortem examinations were employed. The objectives of the study were to determine the prevalence of fasciolosis and associated risk factors, the test agreement between fecal examination by sedimentation and post mortem examination; and the direct financial loss due to liver condemnation. Of 384 fecal samples collected during ante mortem, 54 were positive for egg of Fasciola with an overall prevalence of 14.1% (54/384) based on coprological examination. The prevalence was 14.5% (50/294) in sheep and 10% (4/40) in goats. An overall prevalence of 18.8% (72/384) was found based on liver examination. There was no statistically significant difference (P>0.05) in infection rate between the two species and sex. The difference in infection rate in body condition, age and fecal consistency was statistically significant (P=0.000, 0.034 and 0.031 respectively). The dominant species of Fasciola was F. hepatica 9.9%, followed by 3.39, 3.13 and 2.34% by immature Fasciola, F. gigantica and mixed infection respectively. The mean fluke burden was 28.28 ranging between 3 and 96 flukes per infected liver and the fluke burden was highest in animals with mixed infection followed by animals infected by F. hepatica. The sensitivity of the sedimentation technique to detect Fasciola eggs was 75% compared to postmortem examination of liver and a considerable agreement (kappa=0.830) was obtained between the tests. An annual loss of 25230 Birr loss was estimated in Dessie Municipal Abattoir. Study on public health implication of the parasites is recommended.
A cross sectional active and retrospective abattoir survey was undertaken from November 2013 to April 2014, on cattle slaughtered at Dessie municipal abattoir with the aim of identifying the major causes of organ condemnation, risk factors for organ condemnation and estimating the financial loss attributed to the condemned organs in cattle slaughtered at Dessie municipal abattoir, North-East part of Ethiopia. Of the total 768 examined animals, abnormalities were detected in 82 (10.68%) during ante mortem inspection and 430 (55.99%) were animals from which organ condemned during postmortem inspection. From the total cattle slaughtered, 311 (40.49%) livers, 142 (18.49%) lungs, 39 (5.08%) kidneys, 34 (4.43%) hearts and 6 (0.78%) tongues were condemned due to various causes. Hydatidosis (22.13%), fasciolosis (20.18%) and cirrhosis (8.85%), hepatitis (4.43%), pneumonia (3.25%), abscess (2.6%), pericarditis (2.08%), edema (1.82%), hydronephrosis (1.43%), nephritis (1.04%) were the major identified causes from the lesions responsible for the rejection of organs. Statistically significant difference in organ condemnation rate was found between age (p = 0.000), body condition score (p = 0.000) and origin (p = 0.013) of animals. However, there was no statistically significant difference between the two breeds although there was higher condemnation rate of organ in cross breed cattle. In the study, fasciolosis and hydatidosis were the major causes of organs condemnation. The direct financial loss from organ condemnation due to various reasons was estimated to be 122,617.70 Ethiopian Birr (6,288.08 USD) per annum. Hence, commencement and implementation of prevention and control measures are must so as to secure from the financial loss they cause.
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