The prevalence of Cystoisospora suis in lactating piglets and their dams in pig farms in the central region of Venezuela was determined. The study was conducted in farms of three sizes with a history of neonatal diarrhea: small (<150 sows), medium (150-500 sows) and large (>500 sows) farms. A total of 572 litters and their mothers were examined. Samples were cultured in 2.5% potassium dichromate and latter processed by the flotation-centrifugation technique using a NaCl saturaded solution. C. suis was found in 55 farms (82.1%) and 210 litters (36.7%), with the highest prevalence values in the first two weeks of life (p<0.05), but without statistical differences between farm sizes. Moreover, 9.4% of the sows were infected and of these, 89% of the litters were positive to C. suis, giving a significant correlation between the positivity of piglets and their mothers (r=0.55; p<0....

The prevalence of Cystoisospora suis in lactating piglets and their dams in pig farms in the central region of Venezuela was determined. The study was conducted in farms of three sizes with a history of neonatal diarrhea: small (<150 sows), medium (150-500 sows) and large (>500 sows) farms. A total of 572 litters and their mothers were examined. Samples were cultured in 2.5% potassium dichromate and latter processed by the flotation-centrifugation technique using a NaCl saturaded solution. C. suis was found in 55 farms (82.1%) and 210 litters (36.7%), with the highest prevalence values in the first two weeks of life (p<0.05), but without statistical differences between farm sizes. Moreover, 9.4% of the sows were infected and of these, 89% of the litters were positive to C. suis, giving a significant correlation between the positivity of piglets and their mothers (r=0.55; p<0....