لخّصلي

It is ovoid in shape and measures approximately 10 - 20 um. This stage occurs in the intestine of cat, the final host when Toxoplasma success to produce the infection, which revealed in the feces of the infected cat, sporulation occurs outside the body in the environment, especially in soil, vegetables, and house thresholds (Frenkel, 1991).Sporulated oocysts are remarkably resistant and can survive in soil for several months and resist the stomach juices (Mims et al., 2004).(1).

It is ovoid in shape and measures approximately 10 – 20 μm. This stage occurs
in the intestine of cat, the final host when Toxoplasma success to produce the
infection, which revealed in the feces of the infected cat, sporulation occurs outside
the body in the environment, especially in soil, vegetables, and house thresholds
(Frenkel, 1991). Oocyst develop in the intestine of the definitive host (the cat) by
gametogony (sexual reproduction). The mature one contains two sporocysts, each
has four sporozoites, which is the infective form (Dubey, 2010) Fig. (1). the cat
excretes the oocyst with feces after (3-24) days of infection; ten million of oocyst
are shed in feces in a single day, (Pavesio and Ligthman, 1996). Sporulated oocysts
are remarkably resistant and can survive in soil for several months and resist the
stomach juices (Mims et al., 2004). Oocysts are highly resistant to environmental
conditions and can remain infectious for as long 18 months in water or warm,
moist soils (Johnsen, 2009).
They do not survive well in arid cool climates, they can remain infectious for
weeks in body fluids at room temperature, and in meat for as long as the meat is
edible and uncooked (Paniker , 2002).