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VetMed Resource

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Abstract

Cultures of the cattle tick were experimentally infected either Babesia argentina of B.bigemina. Direct examination of haemolymph from engorged female ticks was able to detect only a proportion of those that would transmit the parasite to their progeny, particularly in the case of B. argentina....

Author(s)
Mahoney, D. F.; Mirre, G. B.
Citation
Annals of Tropical Medicine and Parasitology, 1971, 65, No.3, pp 309-317
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

The immunological reactions of calves to inoculation of plasma obtained from infected calves were studied. Three types of antigen were recognized. The first was an autoantigen, associated with polymeric haptoglobin complexes, which produced non-specific precipitating antibodies. The second group...

Author(s)
Mahoney, D. F.; Goodger, B. V.
Citation
Experimental Parasitology, 1972, 32, No.1, pp 71-85
Abstract

Intraerythrocytic forms of B. argentina were exposed to various doses of gamma-radiation and then inoculated intravenously into splenectomized calves to study infectivity and immunogenicity of the irradiated parasites. Commencing with a dose of 8 krads, the proportion of organisms capable of...

Author(s)
Mahoney, D. F.; Wright, I. G.; Ketterer, P. J.
Citation
International Journal for Parasitology, 1973, 3, No.2, pp 209-217
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

Author(s)
Mahoney, D. F.
Citation
A.M.R.C. Review, 1973, No. 12, pp 1-21
Abstract

Larvae of Boophilus microplus (Can.) from a culture infected with Babesia argentina were fed on uninfected calves until forms of the organism infective for cattle were produced in the ticks, 3-5 days after attachment. Subcutaneous and intravenous inoculations of homogenates of the whole larvae...

Author(s)
Mahoney, D. F.; Mirre, G. B.
Citation
Research in Veterinary Science, 1974, 16, 1, pp 112-114
Abstract

Daily examination of kallikrein activity in the plasma of splenectomized calves infected with B. argentina showed that the rate of conversion of the kallikrein precursor, kallikreinogen, to kallikrein increased 1-2 days before B. argentina parasites were detectable in peripheral blood and that this ...

Author(s)
Wright, I. G.; Mahoney, D. F.
Citation
Zeitschrift fur Parasitenkunde, 1974, 43, Heft 4, pp 271-278
Abstract

The antigen of choice was a soluble component extracted from the parasite-erythrocyte stroma mixture by sonic disintegration and filtration on Sephadex G200. This antigen was coupled by tannic acid to pyruvic aldehyde-treated sheep erythrocytes. Serum samples were tested at a dilution of 1/100, and ...

Author(s)
Goodger, B. V.; Mahoney, D. F.
Citation
Australian Veterinary Journal, 1974, 50, No.6, pp 246-249
Abstract

A rapid slide test for the diagnosis of Babesia argentina infection in cattle was performed in the field using antigen-sensitised latex particles and fresh plasma. In enzootic herds the test detected all infected animals under two years of age and 80% to 90% of infections in older animals even...

Author(s)
Goodger, B. V.; Mahoney, D. F.
Citation
Australian Veterinary Journal, 1974, 50, No.6, pp 250-254

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