Daiba, A., Adoum, I., Abdel-aziz, M., Adoum, A., Kagira, J. (2025). Prevalence of Echinococcosis and Cysticercosis in Sheep in Abeche Slaughterhouse in Chad. Journal of Applied Veterinary Sciences, 10(3), 1-7. doi: 10.21608/javs.2025.367423.1556
Ahmota Romain Daiba; ISSA Youssouf Adoum; Mahamat Hassan Abdel-aziz; Abdel-madjid Adoum; John Maina Kagira. "Prevalence of Echinococcosis and Cysticercosis in Sheep in Abeche Slaughterhouse in Chad". Journal of Applied Veterinary Sciences, 10, 3, 2025, 1-7. doi: 10.21608/javs.2025.367423.1556
Daiba, A., Adoum, I., Abdel-aziz, M., Adoum, A., Kagira, J. (2025). 'Prevalence of Echinococcosis and Cysticercosis in Sheep in Abeche Slaughterhouse in Chad', Journal of Applied Veterinary Sciences, 10(3), pp. 1-7. doi: 10.21608/javs.2025.367423.1556
Daiba, A., Adoum, I., Abdel-aziz, M., Adoum, A., Kagira, J. Prevalence of Echinococcosis and Cysticercosis in Sheep in Abeche Slaughterhouse in Chad. Journal of Applied Veterinary Sciences, 2025; 10(3): 1-7. doi: 10.21608/javs.2025.367423.1556
Prevalence of Echinococcosis and Cysticercosis in Sheep in Abeche Slaughterhouse in Chad
1Department of Livestock Science and Technology, National Higher Institute of Science and Techniques of Abeche, Chad
2Department of Livestock Science and Technology, National Higher Institute of Science and Techniques of Abeche, Chad; Higher Normal School of N'Djamena (ENS), Chad
3Department of Animal Sciences, Jomo Kenyatta University of Agriculture and Technology (JKUAT), Nairobi, Kenya
Receive Date: 11 March 2025,
Revise Date: 01 May 2025,
Accept Date: 11 May 2025
Abstract
Echinococcosis and cysticercosis are severe veterinary and medical issues that are prevalent worldwide, particularly in developing countries where canines interact with domestic ruminants on a more frequent basis. The primary reservoir of both cestodes is sheep, which serve as intermediate hosts. Therefore, it is crucial to evaluate the incidence of hydatid cysts and cysticerci in livestock that have been slaughtered at the abattoir. This is due to the likelihood of cestode larvae infesting offal that is transmitted to definitive hosts, including humans and canines. The research was conducted from August to October 2024 at the Abeche abattoir in Chad. Throughout the duration of the study, all sheep that were slaughtered were examined. A total of 19,047 sheep, consisting of 8,726 males and 10,321 females, were inspected. The presence of hydatid cysts and cysticerci (Cysticercus ovis and Cysticercustenuicollis) in the skeletal muscles and/or visceral organs was used to determine the animal's positivity to echinococcosis and cysticercosis. The results indicated that the sheep examined had an overall prevalence of hydatidosis of 3.30%. The prevalence was lower in animals from transhumant breeders (2.86%) than in the urban (3.94%) and periurban (3.40%) areas, and it was higher in females (3.85%) than in males (2.67%). The prevalence of cysticercosis was far lower for C. ovis infestations (0.21%) than for C. tenuicollis (4.39%). The two sexes did not exhibit a significant difference in the prevalence of C. ovis cysticercosis. However, the study reported a significantly higher quantity of C. tenuicollis in females (5.37%) compared to males (3.23%). This study concludes that the prevalence of these two larval cestodoses in sheep has increased in comparison to previous research conducted in slaughterhouses in Chad. Significant efforts must be made to prevent the transmission of these larvae from slaughterhouses by destroying all infested offal in order to reduce the infestation.
ABDEL-BAKI, A. A. S., ALMALKI, E., and AL-QUARISHY, S., 2018. Prevalence and characterization of hydatidosis in Najdi sheep slaughtered in Riyadh city, Saudi Arabia. Saudi Journal of Biological Sciences, 25(7), 1375–1379. https://doi.org/10.1016/j.sjbs.2018.04.011
ABIYOT, J., BEYENE, D., and ABUNNA, F., 2011. Prevalence of hydatidosis in small ruminants and its economic significance in Modjo Modern Export Abattoir, Ethiopia. Journal of Public Health and Epidemiology, 3(10), 454–461. http://www.cabdirect.org/abstracts/20113389431.html
ABO-AZIZA, F. A. M., ODA, S. S., ABOELSOUED, D., FARAG, T. K., and ALMUZAINI, A. M., 2019. Variabilities of hydatidosis in domestic animals slaughtered at Cairo and Giza abattoirs, Egypt. Veterinary World, 12(7), 998–1007. https://doi.org/10.14202/vetworld.2019.998-1007
ALMALKI, E., AL-QUARISHY, S., and ABDEL-BAKI, A. A. S., 2017. Assessment of prevalence of hydatidosis in slaughtered Sawakny sheep in Riyadh city, Saudi Arabia. Saudi Journal of Biological Sciences, 24(7), 1534–1537. https://doi.org/10.1016/j.sjbs.2017.01.056
ASSANA, E., ZOLI, P. A., SADOU, H. A., NGUEKAM, M., VONDOU, L., POUEDET, M. S. R., DORNY, P., BRANDT, J., and GEERTS, S., 2001. Prévalence de la cysticercose porcine dans le Mayo-Danay (Nord Cameroun) et le Mayo-Kebbi (sud-ouest du Tchad). Revue d’élevage et de Médecine Vétérinaire Des Pays Tropicaux, 54(2), 123. https://doi.org/10.19182/remvt.9790
BOUHALIT, S., and ZERDOUDI, I., 2020. Etude de la Qualité Parasitaire et Microbiologique de la Viande Rouge dans l’Abattoir Communal de la Wilaya de Guelma. Université de Guelma, Algerie, Mémoire de Master, 62p.
BRADLEY, D. D., ANDREW, S. P., ANDRIA, J., JOCELYN, T. J., JENNIFER, M., and PAULA, I. M., 2012. Distribution of, and risk factors associated with, sheep carcass condemnations due to Cysticercus ovis infection on Canadian sheep farms. Veterinary Parasitology, Volume 190, 3-4, Pages 434-441. https://doi.org/10.1016/j.vetpar.2012.07.019
BRIK, K., HASSOUNI, T., YOUSSIR, S., BAROUD, S., ELKHARRIM, K., and BELGHYTI, D., 2018. Epidemiological study of Echinococcus granulosus in sheep in the Gharb plain (North-West of Morocco). Journal of Parasitic Diseases, 42(4), 505–510. https://doi.org/10.1007/s12639-018-1026-7
DAIBA, A. R. 2006. Cysticercoses bovines, ovines, caprines et les conséquences économiques, sanitaires et hygiéniques à la Société Moderne des Abattoirs (SMA) de N'djaména. INSTA, Mémoire de licence, 47p.
DJALAL, A. K. 2011. Elevage ovin périurbain au Tchad : Effet de l’alimentation sur les performances de reproduction et de croissance. Université Polytechnique de Bobo-Dioulasso, These, 141p.
DOUTOUM, A. A., SAKHAÏROUN, A., DOUNGOUS, D. M., HAMID, A. A., TIDJANI, A., MARKHOUS, A. N., MOUKHTAR, R., SEYDI, M., and ABDOURAHAMANE, B., 2020. Motifs de saisies de viandes rencontrées à l’abattoir frigorifique de Farcha (N’Djamena/Tchad). CNRD, Revue Scientifique du Tchad - série B, Pages 17-35.
EUZEBY, J., and BOURDDISDEAUG, G. C. M., 2005. Dictionnaire de parasitologie médicale et vétérinaire. Paris: Tec et Doc-EM inter-Lavoisier, p504. ISBN: 3-7430-0705.
Food and Agriculture Organization, (2000). Manual on meat inspection for developing countries. http://www.fao.org/docrep/003/t0756e/t0756e00.htm. FOUNTA, A., CHLIOUNAKIS, S., ANTONIADOU-SOTIRIADOU, K., KOIDOU, M., and BAMPIDIS, V. A., 2016. Prevalenza di idatidosie tasso di fertilità di cisti idatidee in animali destinati al consumo umano nel nord della Grecia. Veterinaria Italiana, 52(2), 123–127. https://doi.org/10.12834/VetIt.123.347.2
GRABER, M., and CHAILLOUX, A., 1970. Existence au Tchad de la ladrerie porcine à Cysticercus cellulosae (Rudolphi). Revue Elev. Méd. vét. Pays trop., 23 : 49-55.
GRABER, M., and THOME, M., 1964. La cysticercose bovine en République du Tchad : Quelques réflexions sur la situation présente, l'étiologie, le diagnostic, l'immunité et le traitement de cette zoonose. Rev. Elev. Méd. vét Pays Trop, 17, 3 (441-466).
GRABER, M., TRONCY, P., TABO, R., SERVICE, J., and OUMATIE, O., 1969. L'échinococcose – hydatidose en Afrique centrale : Echinococcose des animaux domestiques et sauvages. Rev. Elev. Méd. vét Pays Trop, 22, 1 (55-67)
HAFFAF, S., RAGOUB, F. Z., MAMMERI, A., NOUARI, Z., DJAALAB, I., and ZERNINE, A., 2020. Epidemiological Study of Hydatidosis in Sheep Slaughtered at M’Sila Abattoirs (Algeria). Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Veterinary Medicine, 77(2), 7–16. https://doi.org/10.15835/buasvmcn-vm:2019.0040
HAJIPOUR, N., RASHIDZADEH, H. A., KETZIS, J., SERAJI, R. E., AZIZI, H., KARIMI, I., BAGHERNIAEE, H., and MONTAZERI, R., 2020.Taenia ovis in small ruminants in Iran: Prevalence, pathology, and economic loss. Veterinary Sciences, 7(1), 1–7. https://doi.org/10.3390/VETSCI7010034
HASHEMNIA, M., and FRAJANI, G., 2016. Prevalence and pathological lesions of ovine cysticercosis in slaughtered sheep in western Iran. Journal of Parasitic Diseases, 40(4), 1575–1578. https://doi.org/10.1007/s12639-015-0732-7
KHALED, K., TEBER, G., BOUAICHA, F., AMAIRIA, S., REKIK, M., and GHARBI, M., 2020. Infestation of small ruminants by the metacestode stage of Taenia hydatigena in slaughterhouse, North East Tunisia. Veterinary Medicine and Science, 6(2), 204–208. https://doi.org/10.1002/vms3.222
LAHMAR, S., DEBBEK, H., ZHANG, L. H., MCMANUS, D. P., SOUISSI, A., CHELLY, S., and TORGERSON, P. R., 2004. Transmission dynamics of the Echinococcus granulosus sheep-dog strain (G1 genotype) in camels in Tunisia. Veterinary Parasitology, 121(1–2), 151–156. https://doi.org/10.1016/j.vetpar.2004.02.016
LUKA, S. A., KOGI, E., NDAMS, I. S., KOGI, A. C., YARO, C. A., YAKUBU, R., KASE, S. N., BELLO, R., YUSUF, B., HARUNA, J. S., MOHAMMED, A. T., MOHAMMED, S. J., IBRAHIM, Z., GWALABA, J., and OLADEJI, I. O., 2023. Prevalence of hydatid cysts in liver and lungs of cattle slaughtered in selected abattoirs in northern Nigeria. FUDMA Journal of Sciences (FJS). Vol. 7 No. 3, pp 93 - 101. https://doi.org/10.33003/fjs-2023-0703-1826
MEHMOOD, N., ARSHAD, M., AHMED, H., SIMSEK, S., and MUQADDAS, H., 2020. Comprehensive account on prevalence and characteristics of Hydatid cysts in livestock from Pakistan. Korean Journal of Parasitology, 58(2), 121–127. https://doi.org/10.3347/kjp.2020.58.2.121
Ministère de l’Environnement, de l’Eau et des Ressources Halieutiques (MEERH), 2009. Programme d‟action national d‟adaptation aux changements climatiques (PANA-Tchad), 92.
MIRAN, M. B., KASUKU, A. A., and SWAI, E. S., 2017. Prevalence of echinococcosis and Taenia hydatigena cysticercosis in slaughtered small ruminants at the livestock-wildlife interface areas of Ngorongoro, Tanzania. Veterinary World, 10(4), 411–417. https://doi.org/10.14202/vetworld.2017.411-417
MUKATAKAMBA, G. K., KATEMBO, P. S., SALIBOKO, R. K., and KISALI, E. M., 2023. Risque sanitaire liée aux zoonoses parasitaires : Prévalence de l’échinococcose Kystique chez les ovins en territoire de Beni et Lubero (Nord-Kivu, République Démocratique du Congo). 56(1), 10222–10230.
MURAT, K. 2005. Investigation of antigenic specificity against Cysticercus tenuicollis cyst fluid antigen in dogs experimentally infected with Taenia hydatigena. Turkish Journal of Veterinary Animal Sciences. 29: 835–840.
N'DRI, K. T., RAZAFIARIMANGA, Z. N., NOWAKOWSKY, M., DJAMAN, J. A., JAMBOU, R., DRI, K. T. N., RAZAFIARIMANGA, Z. N., RANDRIAMPARANY, T. N., and RAZAFIARIMANGA, Z. N., 2022. Prévalence de la cysticercose porcine dans trois abattoirs d´Antananarivo, Madagascar : comparaison inspection des carcasses versus tests sérologiques. PAMJ-OH - 9(18).
OULD AHMED SALEM, C. B., SCHNEEGANS, F., CHOLLET, J. Y., and JEMLI, M. H., 2010. Prévalence et aspects lésionnels de l’hydatidose chez les dromadaires et les petits ruminants’ au nord de la Mauritanie. Revue d’élevage et de Médecine Vétérinaire Des Pays Tropicaux, 63(1–2), 23–28. https://doi.org/10.19182/remvt.10105
RONG, X., FAN, M., ZHU, H., and ZHENG, Y., 2021. Dynamic modeling and optimal control of cystic echinococcosis. Infectious Diseases of Poverty, 10(1), 1–13. https://doi.org/10.1186/s40249-021-00807-6
SCHWEIGER, A., GRIMM, F., TANNER, I., MÜLLHAUPT, B., BERTOGG, K., MÜLLER, N., and DEPLAZES, P., 2012. Serological diagnosis of echinococcosis: The diagnostic potential of native antigens. Infection, 40(2), 139–152. https://doi.org/10.1007/s15010-011-0205-6
SIDHARTHA, G., and SUBHASH, C. P., 2012. A review on diagnostic and preventive aspects of cystic echinococcosis and human cysticercosis. Trop Parasitol, 2(2):99–108. https://doi.org/10.4103/2229-5070.105174
UMHANG, G. 2017, Surveillance et épidémiologie d’Echinococcus multilocularis et d’Echinococcus granulosus sensu lato, Thèse, Zootechnie, Université Paris-Est. Français, 153p.
WILSON, W. G. 2005. Wilson’s practical meat inspection. Wiley-Blackwell, 312 p.
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