Salmonella isolated from crocodiles and other reptiles during the period 1985-1994 in South Africa
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Date
Authors
Van der Walt, Martha L.
Steyn, Helena C.
Journal Title
Journal ISSN
Volume Title
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Published by the Agricultural Research Council, Onderstepoort Veterinary Institute
Abstract
Over a 10-year period, 173 isolates of Salmonella were obtained during routine isolation from reptiles.
Of the 173 isolates, 92 different Salmonella serovars were identified. Of them, 61 (66%) belonged
to subspecies I, nine to subspecies II and 21 to subspecies Ill (lIla and lllb), and one to subspecies
IV. The majority of isolates were from farmed Nile crocodiles (145), three from wild-caught
African dwarf crocodiles, 11 from captive snakes, 13 from lizards and one from a tortoise. The isolates
from the tortoise and lizards were subspecies I isolates (Zaire and Tsevie, respectively). Of
the snakes, nine isolates were S.lll. The serovars isolated most often from the crocodiles were of
subspecies I (32 serovars). Eight were from subspecies II, seven from subspecies Ill and one from
subspecies IV. The most frequently identified serovars were Typhimurium (seven), Tsevie (six), Duval
(six), Schwerin (six), Tinda (six), and Tallahassee (six). On two commercial crocodile breeding farms
that had experienced ongoing problems for about two years, many isolates of Salmonella were made.
Some of these serovars were isolated more than once, and also months apart. No single Salmonella
serovar predominated, nor did a single pathological condition. These salmonellas were predominantly
of subspecies I.
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Keywords
Veterinary medicine, Crocodiles, Isolate, Reptiles, Salmonella, Serovars
Sustainable Development Goals
Citation
Van der Walt, ML, Huchzermeyer, FW & Steyn, HC 1997, 'Salmonella isolated from crocodiles and other reptiles during the period 1985-1994 in South Africa’. Onderstepoort Journal of Veterinary Research, vol. 64, no. 4, pp. 277-283.