Toxoplasma gondii and Neospora caninum in farm-reared ostriches (Struthio camelus) in China
نویسندگان
چکیده
BACKGROUND The parasites Toxoplasma gondii (T. gondii) and Neospora caninum (N. caninum) are globally distributed; they infect warm-blooded animals, including many avian species. The aim of this study was to evaluate the presence of these parasites in ostriches from central China. In total, 402 ostrich (Struthio camelus) samples (293 hearts, 77 brains, and 32 serum) from slaughterhouses of the Henan Province and Hebei Province were collected. The heart juice (n = 283) and serum samples (n = 32) were tested for antibodies to T. gondii using the modified agglutination test (MAT). Hematoxylin and eosin (H&E) staining, immunohistochemical (IHC) staining, and the polymerase chain reaction were used to examine the cysts and DNA of T. gondii and N. caninum parasites, respectively. RESULTS Antibodies to T. gondii were detected in 6.4% (20/315) (cut-off, 25). No cysts or DNA of T. gondii or N. caninum were observed in any of the 293 hearts and 77 brains. CONCLUSION The results showed a low prevalence of T. gondii antibody in ostriches, compared to that in the other animals. N. caninum occurs at low to negligible frequencies in ostriches from China. This is the first report on screening ostriches in China for T. gondii antibodies.
منابع مشابه
Occurrence of antibodies to Toxoplasma gondii in rheas (Rhea americana) and ostriches (Struthio camelus) from farms of different Brazilian regions Ocorrência de anticorpos Toxoplasma gondii em emas (Rhea americana) e avestruzes (Struthio camelus) de propriedades de diferentes regiões brasileiras
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. Antibo...
متن کاملPrevalence 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...
متن کاملDetection of Neospora caninum from farm-bred young blue foxes (Alopex lagopus) in China.
Neospora caninum has been detected in several wild mammalian species, i.e., deer, coyotes, dingoes, and foxes. Farm-bred foxes were rarely reported to be affected by the parasite. In this study, we detected for the first time the infection of N.caninum in farm-bred young blue foxes (Alopex lagopus) in China. Neospora-like tissue cysts were observed in brains and kidneys of the foxes by histopat...
متن کاملPrevalence of Neospora caninum and Toxoplasma gondii Antibodies in Bulk Milk of Dairy Cattle, Mashhad, Iran
Neospora caninum (N. caninum) and Toxoplasma gondii (T. gondii) are both obligate intracellular protozoan parasites, which have gained considerable attention because of their role in bovine abortion. This study aimed to detect anti-N. caninum and -T. gondii in bulk milk of dairy cattle, Mashhad, Iran. The bulk milk samples were collected from July 2014 to June 2015 and analyzed for anti-N. cani...
متن کاملSeroprevalence and Risk Factors of Neospora caninum and Toxoplasma gondii in Small Ruminants in Southwest of Iran
Toxoplasma gondii and Neospora caninum are Apicomplexan intracellular protozoa with global distribution. Small ruminants play an important role as intermediate hosts for N. caninum and T. gondii, parasites of great public health concern. The main goal of the current survey was to evaluate N. caninum and T. gondii infection rate in sheep and goats of Khuzestan Province, southwest of Iran, using ...
متن کامل