| sarcocystis transmitted by blood transfusion. | merozoites were found in blood smears from calves, lambs, and pigs exhibiting signs of acute sarcocystosis after oral infection with sporocysts of sarcocystis bovicanis, sarcocystis ovicanis, and sarcocystis suihominis. in each of 3 experiments, whole blood containing merozoites was transfused from an infected host to 2 uninfected recipients of the same species; 2 additional animals of the same species served as uninfected nontransfused controls. the bovine, ovine, and porcine donors all died of ... | 1979 | 120435 |
| sheep experimentally infected with sarcocystis from dogs. i. disease in young lambs. | eight polled dorset lambs were orally inoculated with sarcocystis ovicanis sporocysts. two lambs that received 100,000 or 200,000 sporocysts became clinically ill, recovered, and were killed 67 and 88 days after inoculation (dai). numerous intramuscular cysts were found in their skeletal and cardiac muscles. three lambs received 100,000 sporocysts, three lambs received 1 million sporocysts, and three lambs received no sporocysts. after an acute clinical illness characterized by anemia, inappeten ... | 1977 | 407346 |
| sheep experimentally infected with sarcocystis from dogs. ii. abortion and disease in ewes. | this is the first study of sarcocystis-induced abortion in sheep. eleven pregnant ewes were experimentally inoculated with 50,000, 100,000, or 500,000 sarcocystis ovicanis sporocytis from dogs. eight ewes either aborted, died, or became moribund before term; they produced 15 fetuses, 11 of normal appearance and 4 necrotic. no evidence of intrauterine transmission was obtained. all infected ewes became anemic, inappetent, and lost weight. ewes inoculated with the greatest numbers of sporocysts ex ... | 1978 | 412642 |
| [light and electron microscope studies on cysts of sarcocystis ovicanis heydorn et al. (1975) within muscle fibres of sheep (author's transl)]. | four conventionally reared lambs, isolated at the age of 5 and 8 weeks, were orally infected with oocysts and sporocysts from dogs, which had been fed raw muscles from sheep containing small cysts of s. tenella. three lambs, each infected with 100,000 sporocysts, were killed at days 41, 63 and 81 p.i. the other lamb was used for a non-infected control. the development of sarcocystis-cysts in muscle cells of the infected lambs was studied by light and electron microscopy. the cyst was always situ ... | 1975 | 814735 |
| ultrastructure of sarcocystis tenella (sarcocystis ovicanis). | the ultrastructure of the parasitophorous cyst, the metrocytes and merozoites of sarcocystis tenella (s. ovicanis) was studied. the general ultrastructural features of the cyst wall and the cells of the protozoan, previously described by other authors, were confirmed. the vesicle-like invaginations of the unit membrane (primary wall) of the cyst are identical with the micropinocytic pits of other animal cells, and we believe that they contribute to the nutritional process of the cyst. the golgi ... | 1989 | 2510395 |
| [schizogony of sarcocystis ovicanis]. | | 1986 | 3090998 |
| serodiagnosis of babesia motasi (wales), theileria recondita (wales) and cytoecetes phagocytophila infection in sheep. | the indirect fluorescent antibody test (ifat) was used to diagnose some tick-borne infections of sheep, babesia motasi (wales), theileria recondita (wales) and cytoecetes phagocytophila. antigen was prepared from blood derived from splenectomised sheep except for c phagocytophila which was derived from a normal animal. a field survey was made to assess the prevalence of b motasi and t recondita in north wales and a comparison made between the titres using the b motasi (wales) antigen with those ... | 1987 | 3306850 |
| experimental sarcocystis ovicanis infection in lambs: salinomycin chemoprophylaxis and protective immunity. | salinomycin, administered prophylactically, was effective in controlling clinical sarcocystosis resulting from infection with sarcocystis ovicanis in two experiments involving a total of 50 lambs. in each experiment, five lambs were used in each of five test groups--uninoculated and unmedicated, inoculated and unmedicated, uninoculated and medicated (2 mg/kg), inoculated and medicated (2 mg/kg), and inoculated and medicated (1 mg/kg). salinomycin was included in the feed of each medicated group ... | 1983 | 6406658 |
| humoral and cellular immune responses in cattle and sheep inoculated with sarcocystis. | cattle inoculated with sarcocystis bovicanis (= sarcocystis cruzi) and sheep inoculated with sarcocystis ovicanis were monitored for the appearance of sarcocystis-specific antibodies and lymphocytes in the peripheral circulation. anti-sarcocystis antibody was identified by enzyme-linked immunosorbent assay, whereas antigen-reactive lymphocytes were discerned by an in vitro lymphocyte blastogenic assay. the antigens used were the soluble fraction recovered from disrupted bradyzoites of mature sar ... | 1984 | 6433756 |
| amprolium for prophylaxis of ovine sarcocystis. | the efficacy of amprolium against clinical sarcocystosis resulting from sarcocystis ovicanis was determined in two experiments involving 40 lambs. in each experiment, four lambs were used in each of five test groups--uninoculated unmedicated, inoculated unmedicated, uninoculated medicated (100 mg/kg), inoculated medicated (100 mg/kg), and inoculated medicated (50 mg/kg). amprolium was provided as a feed additive to each medicated group for 31 days beginning 1 day before oral inoculation with 100 ... | 1980 | 6767828 |
| premature parturition in ewes inoculated with sarcocystis ovicanis. | a dose of 6 x 10(4) sarcocystis ovicanis sporocysts produced premature parturition in ewes and eventually proved fatal. the main pathological findings were myositis, myocarditis and encephalitis. dose rates over the range of 2.5 x 10(3) to 6 x 10(4) depressed the haematocrit levels of pregnant ewes during the period 5-9 weeks after inoculation. previous infection with s. gigantia did not protect from subsequent challenge with s. ovicanis. | 1981 | 6806970 |
| effects of preparturient inoculation of pregnant ewes with sarcocystis ovicanis upon the susceptibility of their progeny. | | 1982 | 6806972 |
| prevalence of dog-derived sarcocystis spp. in some new zealand lambs. | pepsin: hydrochloric acid digestion and histological examination of the myocardium of 51 hearts from five to nine month-old lambs from the southern half of the north island, showed that 47 (92%) were infected with microscopic sarcocysts that are presumed to be dog-derived. of 157 sarcocysts detected histologically, 32 corresponded morphologically with sarcocystis ovicanis and 120 with sarcocystis tenella (syn. s. arieticanis). the remainder could not be identified as to type. | 1987 | 16031410 |
| [the prevalence of sarcocystis species in sheep slaughtered in municipality slaughterhouse in kirikkale]. | this study was undertaken for the determination of sarcocysts species in sheep slaughtered in kirikkale municipality slaughterhouse. for this study, oesophageal, diaphragm and intercostal muscles were collected from randomly selected 112 sheep out of 1131 sheep (814 sheep and 317 lambs) that were slaughtered from october 2005 to may 2006. the samples were examined for macro and microcyst of sarcocysts spp. macrocysts and microcysts were found in 58.92% of the overall samples. microcysts were fou ... | 2007 | 18224615 |
| lambs infected with uv-attenuated sporocysts of sarcocystis ovicanis produced abnormal sarcocysts and induced protective immunity against a challenge infection. | the present study surveyed the prevalence of natural infection of the sheep esophagus muscle with sarcocysts of sarcocystis ovicanis and examined induction of protective immunity using uv-attenuated sporocysts. the overall prevalence of natural infection of the sheep was 95%. infectivity of the collected sarcocysts was confirmed by shedding of sporulated oocysts after feeding infected esophageal tissues to dogs. to induce protective immunity, lambs were immunized 3 times (once a week) with 1.5 x ... | 2009 | 19488419 |