| parasites of domestic and wild animals in south africa. l. ixodid ticks infesting horses and donkeys. | the aim of the study was to determine the species spectrum of ixodid ticks that infest horses and donkeys in south africa and to identify those species that act as vectors of disease to domestic livestock. ticks were collected opportunistically from 391 horses countrywide by their owners or grooms, or by veterinary students and staff at the faculty of veterinary science, university of pretoria. ticks were also collected from 76 donkeys in limpopo province, 2 in gauteng province and 1 in north we ... | 2017 | 28281774 |
| a sero-epidemiological survey of blood parasites in cattle in the north-eastern free state, south africa. | a survey to determine the incidence of parasites in cattle (n = 386) was conducted in the north eastern free state between august 1999 and july 2000. giemsa-stained blood smears were negative for blood parasites. a total of 94% of the cattle were sero-positive for babesia bigemina by indirect fluorescent antibody test while 87% were sero-positive for anaplasma by enzyme-linked immunosorbent assay. the observation of negative blood smears but high incidence of positive serological results for ana ... | 2004 | 15185577 |
| isolation and characterization of a babesia species from rhipicephalus evertsi evertsi ticks picked off a sable antelope (hippotragus niger) which died of acute babesiosis. | transmission of a babesia species to susceptible cattle by rhipicephalus evertsi evertsi ticks picked off a sable which died of acute babesiosis is described. the parasite was initially isolated by feeding r. e. evertsi ticks on a susceptible, splenectomised bovine which developed parasitaemia. blood stabilate from the parasitaemic bovine produced a fatal babesiosis in a spleen--intact bovine. clinical signs shown by the affected animals corresponded with those of acute babesiosis. parasitologic ... | 1998 | 9741050 |
| the infection of various tick species with babesia bigemina, its transmission and identification. | strains of boophilus decoloratus and b. microplus were easily infected with a single stock of babesia bigemina; boophilus annulatus could be infected less easily, and it was difficult to infect rhipicephalus evertsi. two strains of r. appendiculatus and one strain each of r. bursa and hyalomma anatolicum excavatum were refractory. the same stock of b. bigemina was transmitted by nymphs and adults of b. decoloratus but only by nymphs of r. evertsi. vertical infection was not observed in r. everts ... | 1988 | 3387405 |