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Abstract

An esterase was isolated from a crude extract of B. bovis by affinity chromatography, using soyabean trypsin inhibitor as a ligand. In native form this enzyme had a molecular weight greater than 200 000, but on denaturing gels major bands were observed with molecular weights of 20 000, 10 000 and...

Author(s)
Wright, I. G.; Goodger, B. V.; Rode-Bramanis, K.; Mattick, J. S.; Mahoney, D. F.; Waltisbuhl, D. J.
Citation
Zeitschrift für Parasitenkunde, 1983, 69, 6, pp 703-714
Abstract

Intraerythrocytic forms of B. bovis were exposed to 350 Grays γ- irradiation and were then injected intravenously into intact 2- and 3-year-old Hereford steers. One of 15 steers died on initial infection and subsequently 6 steers were given a virulent heterologous challenge 3 weeks after recovery;...

Author(s)
Wright, I. G.; Mahoney, D. F.; Mirre, G. B.; Goodger, B. V.; Kerr, J. D.
Citation
Veterinary Immunology and Immunopathology, 1982, 3, 6, pp 591-601
Abstract

A virulent strain of B. bovis ("L" strain) was rendered avirulent by gamma-irradiation with 35 krads. Another virulent strain of B. bovis ("C" strain) was made avirulent by rapid blood passage through 12 splenectomized calves. Both the parent virulent and the respective avirulent strains were...

Author(s)
Wright, I. G.; Goodger, B. V.; Mahoney, D. F.
Citation
Journal of Protozoology, 1981, 28, 1, pp 118-120
Abstract

The plasma of 4 cattle recovering from severe B. bovis infection contained cold precipitable protein which consisted of immune complexes formed in antibody excess. The major immunoglobulin in the complexes was IgM although IgG1 and IgG2 were also present at lower concentrations. In addition,...

Author(s)
Goodger, B. V.; Wright, I. G,; Mahoney, D. F.
Publisher
University of Adelaide, Adelaide, Australia
Citation
Australian Journal of Experimental Biology and Medical Science, 1981, 59, 5, pp 521-529
Abstract

Babesia bovis attenuated by 35 krad gamma -irradiation and parasites not exposed to irradiation were injected into intact 2-year-old Hereford steers. All 5 animals receiving non-irradiated blood died but the 5 animals which received irradiated blood were only mildy affected. Highly significant...

Author(s)
Wright, I. G.; Goodger, B. V.; Mahoney, D. F.
Citation
Zeitschrift fur Parasitenkunde, 1980, 63, 1, pp 47-57
Abstract

The Babesia status of Bos taurus in endemic tick-fever areas of Australia is described, in the light of control programming, with emphasis on Babesia argentina. Inoculation rate is a function of the number of infected ticks attaching to each animal daily. The age-structure of the non-infected...

Author(s)
Mahoney, D. F.; Ross, D. R.
Citation
Australian Veterinary Journal, 1972, 48, No.5, pp 292-298
Abstract

Thirty-two calves, bred in an area where piroplasmosis was endemic, acquired infection with Babesia argentina and B. bigemina before 5-7 months of age. The animals were then maintained tick-free from 2 to 4 years. Parasitaemia with argentina persisted for the entire period in all but one animal,...

Author(s)
Mahoney, D. F.; Wright, I. G.; Mirre, G. B.
Citation
Annals of Tropical Medicine and Parasitology, 1973, 67, No.2, pp 197-203
Abstract

After a single experimental tick-transmitted infection with B. argentina young cattle maintained in a tick-free environment showed recurrences of parasitaernia for 11/2-2 years. With B. bigemina infection, shorter periods and fewer recurrences were observed. Young cattle retained their ability to...

Author(s)
Mahoney, D. F.
Citation
Annals of Tropical Medicine and Parasitology, 1969, 63, pp 1-14
Abstract

For epidemiological studies on bovine babesiosis a reliable and practical method of detecting Babesia bigemina and B. argentina in blood films is required. Thick blood films, specially stained, are suitable and much better than thin films. The preparation and staining of thick blood films is...

Author(s)
Mahoney, D. F.; Saal, J. R.
Citation
Australian Veterinary Journal, 1961, 37, pp 44-47