微生物および生化学技術ジャーナル

概要

Cystcercus Bovis: Prevalence, Associated Risk Factorsand Cyst Character per Organ Load in Haramaya Municipalabattoireast Hararghe Zone of Oromia Regional State, Ethiopia

Abdallahi Abdurehman1*, Safi.Hussen2, Mohammed Jafer2, Fayisa Aliye2, Abadir Jemal2, Sharif Abdusemed1

Background: Bovine cysticercosis is an infection of cattle caused by the larval stageof Cysticercus bovis, the human intestinal cestode. Aims: A cross sectional study was conducted from November 2015 to march 2016 with the objectives of determining the prevalence of bovinecysticercosis, cyst distribution in different organs and cyst viability in cattle slaughtered at Haramaya municipal abattoir. Materials and Methods: Random sampling technique was the sampling strategy used to collect all the necessary data from abattoir survey of the study animals. The sample size required for this study was determined based on the expected prevalence (50%) of C. bovis and the 5% desired absolute precision and 95% CI. Regarding the risk factors associated with the prevalence of C.bovis, the effect of sex, age and body condition score of the animals slaughtered were analyzed using logistic regression and it revealed that there was no statistical significance difference (P >0.05) between sex. But statistical significance differences (P<0.05) were observed among age categories and body condition scores. The proportion of viable cysts in the inspection sites was tongue (31.25%), shoulder (28.12%), masseter muscle (21.9%), liver (15.625%) and heart (3.125%). Result: Overall prevalence was 14.39% with (95% CI of 0.11-0.18). A total of 80C.bovis were collected during the inspection, out of which 32 (40%) were found to be alive while the rest 48 (60%) were degenerative cysts. Anatomical distribution of the cyst showed that 28 (35%), 22 (27.5%), 19 (23.75%), 7 (8.75%) and 4 (5%) of C. bovis were observed in shoulder muscle, tongue, masseter muscle,liver and heart respectively. Out of 337 male cattle examined, 48 (14.23%) had cysts of bovine cysticercosis while 11 (15.06%) of the 73 investigated female animals were infected. Conclusion: In conclusion, the present study revealed that high prevalence of C.bovis was observed and therefore emphasis should be given to this problem so as to improve health, quality and quantity of beef that may satisfy the domestic requirements of the country.