Greater intensity and frequency of Cryptosporidium and Giardia oocyst
shedding beyond the neonatal period is associated with reductions in growth, carcase weight and dressing efficiency in sheep.
Among notable characteristics for Cyclospora is the oocyst
's pronounced resistance to most chemical disinfectants, including chlorine.
The parasite can be transmitted to humans and animals mainly through: the fecal-oral route, through the ingestion of oocysts
that may be present in contaminated water, soil and vegetables; consumption of raw or undercooked meat and animal products containing tissue cysts; and transplacental route (FRENKEL et al, 1970).
Toxoplasma gondii infection in cats from Sao Paulo state, Brazil: seroprevalence, oocyst
shedding, isolation in mice, and biologic and molecular characterization.
Carpentieri et al., "Evidence for a structural role for acid-fast lipids in oocyst
walls of cryptosporidium, Toxoplasma, and Eimeria," mBio, vol.
Table 6 summarizes the effects of respective treatments on oocyst
shedding (as an indicator of efficacy) with time.
Morphologically, the oocysts
are spherical to ovoid and do not present a micropyle.
Microscopy of the stool sample was done, by subjecting the stool sample for saline and iodine mount preparation, for identification of trophozoite forms, eggs and oocyst
and other infective agents.
In other Asian countries, the parasite has been encountered in tap water as little as one oocyst
from 115 samples .
The beta-glucans also had protective effects against Eimeria infection and significantly improved weight gains of chickens with few lesions and oocyst
(2005) who recorded 41 per cent reduction in oocyst
output in Coxabic[R] vaccinated chickens, however, 23.5 per cent reduction in mean OPG of E.
Results showed the equipment efficacy of pure berberine to that of standard drug amprolium on the basis of oocyst
count per gram of faeces (Fig.