| prevalence of antibodies to toxoplasma gondii in ostriches (struthio camelus). | serum samples from 973 ostriches (struthio camelus) in canada were examined for antibodies to toxoplasma gondii by the modified agglutination test incorporating mercaptoethanol and formalin-fixed whole tachyzoites. twenty-eight (2.9%) of the 973 birds were found to be seropositive for antibodies to t. gondii at titers of 1:25 in 15 birds, 1:50 in 12 birds, and 1:500 in 1 bird. this is the first record of t. gondii exposure in ostriches, and it supports the hypothesis that all avian species are s ... | 2000 | 10864266 |
| seroprevalence of toxoplasma gondii in farm-reared ostriches and wild game species from zimbabwe. | one hundred and seventy one serum samples from 10 game species from zimbabwe were tested for igg antibodies to toxoplasma gondii infection using the modified agglutination test (mat). significantly higher seroprevalences were found in the felidae (panthera leo) (92% of 26), bovidae (tragelaphus species) (55.9% of 34) and farm-reared struthionidae (struthio camelus) (48% of 50) compared to the other groups tested. among the bovidae, the nyala (tragelaphus angasii) had the highest seroprevalence o ... | 2005 | 15777687 |
| risk factors and molecular typing of toxoplasma gondii isolated from ostriches (struthio camelus) from a brazilian slaughterhouse. | toxoplasma gondii has a worldwide distribution with different genotypes reported in animals and humans. the parasite is of great importance to food production and public health, highlighted by the high diversity of hosts, i.e. ostriches. this study aimed to determine the prevalence of t. gondii infection in ostriches from a brazilian slaughterhouse, the genotype, and the associated risk factors. t. gondii antibodies were detected in 38/344 (11.05%) serum samples using the modified agglutination ... | 2016 | 27369578 |
| development of ostrich thrombocytes and monocyte-derived macrophages in culture and the control of toxoplasma gondii reproduction after macrophage activation. | raising ostriches became an important economic activity after their products became commodities. the health of farm animals is of paramount importance, so assessing basic immunological responses is necessary to better understand health problems. we developed a method to obtain ostrich thrombocytes and macrophages. the thrombocytes died by apoptosis after 48 h in culture, and the macrophages expanded in size and increased the number of acidic compartments. macrophages were activated by chicken in ... | 2016 | 26794839 |
| occurrence of antibodies to toxoplasma gondii in rheas (rhea americana) and ostriches (struthio camelus) from farms of different brazilian regions. | this study aimed to verify the occurrence of antibodies against toxoplasma gondii in rheas (rhea americana) and ostriches (struthio camelus) commercially breeding in brazil. blood samples from 20 rheas and 46 ostriches (young and adults) were serologically tested using a technique known as modified agglutination test (mat) at an initial titration of 1:16 for ostriches and 1:25 for rheas. antibodies against t. gondii were found in 50% (10/20) of the rheas, with titers ranging from 1:25 to 1:6,400 ... | 2013 | 24142180 |