Freeze-drying of Aegyptianella pullorum

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Date

Authors

Bartkowiak, R.A.
Potgieter, F.T.
Van Rensburg, L.
Labuschagne, F.J.
Van Biljon, B.J.

Journal Title

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Volume Title

Publisher

Published by the Government Printer, Pretoria.

Abstract

Heparinized whole blood, parasitized with Aegyptianella pullorum, was collected from 2 fowls. Buffered lactose peptone (BLP) was added v/v as a stabilizer and the mixture lyophilized in 2ml aliquots after rapid or slow freezing. At different stages during the freeze-drying process, as well as after lyophilization and reconstitution with I ,8 ml of sterile water, samples were taken and injected into pullets. Infectivity was maintained throughout. However, the prepatent period was lengthened after freezing and particularly after lyophilization when there was some loss of viability.

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The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.

Keywords

Veterinary medicine

Sustainable Development Goals

Citation

Bartkowiak, RA, Huchzermeyer, FW, Potgieter, FT, Van Rensburg, L, Labuschagne, FJ & Van Biljon, BJ 1988, 'Freeze-drying of Aegyptianella pullorum', Onderstepoort Journal of Veterinary Research, vol. 55, no. 2, pp. 125-126.