Occurrence and fertility rates of hydatid cysts in sheep and goats slaughtered at Modjo Luna Export Slaughter House, Ethiopia

Abstract

In Ethiopia very limited studies were conducted in small ruminant hydatidosis compared to cattle. A cross-sectional study was conducted at Modjo Luna Export Slaughter House from December 2009 to February 2010 to determine the prevalence and fertility of hydatid cysts. A total of 325 sheep and 440 goats were examined. Examination of lung, liver, kidney, heart and carcass was conducted following standard postmortem procedures. Fertility of hydatid cysts was tested by absence or presence of motility and staining with 0.1% aqueous eosin solution. Out of 325 sheep and 440 goats examined 25 (7.7%) sheep and 27(6.13%) goats had hydatid cysts. The prevalence was high in sheep compared to goats although the difference was not statistically significant (P > 0.05). The organ distribution of hydatid cyst in sheep was 15 (60%) in lung, 9 (36%) in liver and 1 (4%) both the liver and lungs. In goats, hydatid cysts were recovered from 19 (70%) of the lung, 5 (18.5%) of the liver, 1 (3.7%) of the kidney, 2 (7.4%) of the heart and 2 (7.4%) of the muscle. In both sheep and goats the infection was more in lungs, followed by liver. Eighty percent of the cysts found in the lung of sheep were fertile, while there was no fertile cyst detected in the lung of goats and the difference was statistically significant (P < 0.05). In Ethiopia, to break the life cycle of echinococcosis/hydatidosis, public education on habit of feeding condemned organs to dogs should be undertaken.

Major metacestodes in small ruminants slaughtered at Dessie municipal abattoir, Eastern Ethiopia: prevalence, cyst viability, organ distribution and economic implications

“…Cysts depending on the geographical situation, host site, size and type of cyst may have different rates of fertility (Ibrahim 2010). The higher viability rates of pulmonary cysts than hepatic cysts in both sheep and goats in the current study are in agreement with those of Kebede et al (2009b) and Getachew et al (2012). This might be due to softer consistency of tissues that allows the easier development of cyst and the viability.…”

“…The considerable economic losses caused due to condemnation of affected organs are of particular importance in Ethiopia which has low economic output and where sheep and goat production is major livestock. From the previous reports, the estimated total losses from hydatidosis alone in small ruminants due to offal condemnation (the lung and liver) were 149,312.8 US dollar in Jimma (Kumsa and Mohammedzein 2012) and 270,691.34 ETB at Addis Ababa (Getachew et al 2012). Similarly, the annual economic losses from C. tenuicollis infestation in small ruminants in Helmex abattoirs in Ethiopia were 65,269.89 USD (Wondimu et al 2011a, b).…”

Epidemiological Investigations on Cystic Echinococcosis in North-West (Sidi Kacem Province) Morocco: Infection in Ruminants

“…This corroborates the reported results in different regions of Morocco showing that the fertility rate of hydatid cysts of goat origin varies from 0% to 2.5% [15,16,52]. These results are in agreement with those reported in Algeria [27], Iraq [55], and Ethiopia [86]. Because it has been shown that different hosts from different studied areas of Morocco harboured genotypes almost similar to the common sheep strain G1 [18,52,53], these findings would suggest that the sheep strain G1 is not adapted to goats.…”

Prevalence of bovine hydatidosis and its economic importance in Adama Municipal Abattoir, Eastern Ethiopia

“…Cystic Echinococcosis is also a disease of public health importance in the country (Getachew et al, 2012). Previous studies reveal that the prevalence of bovine hydatidiosis in cattle slaughtered in Adama municipal abattoir was 6.6% (Yemane, 1990), 46.8% (Getaw et al, 2010).…”