| the transovarial transmission of babesia caballi by hyalomma truncatum. | babesia caballi, isolated from a horse that originated from south west africa/namibia, was transmitted transovarially by adult hyalomma truncatum. b. caballi proved to be highly infective for adult h. truncatum. forty-five per cent of ticks feeding on a reacting animal with an extremely low parasitaemia became infected. in spite of a low parasitaemia, the ticks were severely affected by the parasite. seventy per cent of the infected ticks either died during oviposition or after laying only a few ... | 1990 | 2339004 |
| the fine structure of developmental stages of babesia caballi in the salivary glands of hyalomma truncatum. | the development of babesia caballi in the salivary glands of hyalomma truncatum was studied at the electron microscopic level. kinetes were first observed in the salivary glands of ticks on day 2 of tick feeding and on each subsequent day of feeding until engorgement on day 8. sporogony appeared to involve the formation of cytomeres. after continued nuclear division, sporozoites formed when individual rounded nuclei were incorporated into portions of cytoplasm. sporozoites were first observed on ... | 1989 | 2812703 |
| a sero-epidemiological survey of equine piroplasmosis in the northern and eastern cape provinces of south africa. | serum samples from yearling thoroughbred horses (n = 176) in the magisterial districts of colesberg, venterstad, and wodehouse in the northern and eastern cape provinces were collected between september and november 1995 to determine the prevalence of antibodies to babesia equi and babesia caballi in these regions. samples were examined for specific antibodies using the indirect fluorescent antibody test. the 95% confidence intervals for the prevalence of serum antibodies in the 3 districts comb ... | 1996 | 9284032 |