| prevalence of cestode parasites in sheep slaughtered in riyadh city, saudi arabia. | prevalence of tapeworm infections among sheep slaughtered in riyadh city were studied from february 2007 to march 2008. a total of 76 out of 3300 sheep were infected with adult cestodes (2.3%). the highest infection rate was in autumn (8.1%), and the lowest one was in summer (1.7%). the cestodes were identified as moniezia expansa (96.3%) and m. deuticulata (3.7%). concerning seasonal dynamics of the worms, the highest number was recorded in october and november (13.5 & 8.3%), while the lowest o ... | 2008 | 19143137 |