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The importance of babesiosis in livestock in China is discussed and mainly focused on bovine and equine babesiosis. Babesiosis is still one of the most important diseases affecting livestock and has caused great economic loss. Nine species ofBabesia have been recognized in livestock:B. bigemina, B. bovis, B. major, B. motasi, B. ovis, B. perroncitoi,(More)
This paper described studies on the distribution, vector and multiplication of the pathogen of ovine anaplasmosis and a complement fixation test (CFT) for the disease.Anaplasma ovis was found to be widely distributed in Northwest China and the infection rate of sheep and goats was very high. From 1986 to 1991, 2,813 sheep and goats were examined for the(More)
The ribosomal small-subunit RNA gene sequences of six Chinese Babesia stocks infective to cattle, including a Babesia bigemina isolate, a B. bovis isolate, two B. ovata isolates, a Babesia sp. Wenchuan isolate and a B. major isolate, were compared and analyzed. The target DNA segment was amplified by polymerase chain reaction and the product ligated into(More)
Tropical theileriosis, a tick borne disease of cattle caused by the protozoan Theileria annulata, was widely distributed in northern China causing great economical losses before the 1980's. In the 1960's blood passaging, irradiation and in vitro culture of parasite were used for the development of attenuated vaccine. Two lines of the schizont stage were(More)
Experiments on the transmission of an unidentified Theileria sp. infective for small ruminants by Haemaphysalis qinghaiensis and Hyalomma anatolicum anatolicum were carried out. Three Theileria-free batches of adult, larvae, and nymphs of laboratory reared H. qinghaiensis and Hy. a. anatolicum ticks were infected by feeding them on sheep infected with(More)
The 18S small subunit ribosomal RNA (18S rRNA) gene of an unnamed Babesia species (designated B. U sp.) was sequenced and analyzed in an attempt to distinguish it from other Babesia species in China. The target DNA segment was amplified by polymerase chain reaction (PCR). The PCR product was ligated to the pGEM-T Easy vector for sequencing. It was found(More)
Experiments were undertaken to determine the mode of transmission to cattle of an unnamed Babesia sp. by Hyalomma anatolicum anatolicum, Hyalomma detritum, Hy. rufipes koch, Haemaphysalis longicornis and Boophilus microplus. The unnamed Babesia species designated Babesia U sp. was isolated by infesting cattle with nymphs from female Hy. a. anatolicum ticks(More)
Two experiments were carried out to determine ifBabesia major could be transmitted byBoophilus microplus. In experiment 1, aBabesia-free batch of laboratory rearedBo. microplus larvae were applied to an intact calf infected by inoculation with aB. major stabilate. The calf showed aB. major parasitaemia while the larvae, nymphs and adult ticks were(More)
A Babesia species has been identified and shown to be transmitted by Hyalomma anatolicum anatolicum in China. When larvae, nymphs and adults developed from engorged females H. a. anatolicum collected from cattle in Xinjiang province were infested onto the Babesia-free calves, piroplasms of Babesia sp. were seen in blood smears from cattle infested with(More)
The transmission of a recently identified Theileria species pathogenic for sheep and goats in northern China is described. Haemaphysalis qinghaiensis nymphs which had been collected from grass in epidemic areas were able to transmit this Theileria species to sheep. The pathogen was also transmitted to sheep and goats by three batches of adult ticks(More)