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Cattle mortality attributed to the toxic cyanobacterium Cylindrospermopsis raciborskii in an outback region of North Queensland

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Saker, M.L., Thomas, A.D. and Norton, J.H. (1999) Cattle mortality attributed to the toxic cyanobacterium Cylindrospermopsis raciborskii in an outback region of North Queensland. Environmental Toxicology, 14 (1). pp. 179-182.

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Article Link: http://dx.doi.org/10.1002/(SICI)1522-7278(199902)1...

Publisher URL: http://www3.interscience.wiley.com/cgi-bin/home

Abstract

Three cows and ten calves were found dead near a farm dam on a cattle property at McKinlay in northwest Queensland, Australia. At that time, the dam contained an algal bloom which was identified as a monoculture of the cyanobacterium C. raciborskii. Histological examination of the liver of a calf carcass showed signs consistent with poisoning caused by hepatotoxin. The hepatotoxic alkaloid cylindrospermopsin was detected in material harvested from the dam (4.1×10-15 g cell-1) and in a pure culture of an isolate from the bloom (4.4×10-15 g cell-1). An extract of this material was lethal to mice after 24 h at an intraperitoneal concentration of 153 mg kg-1. This appears to be the first report of animal poisonings attributed to the cyanobacterium C. raciborskii.

Item Type:Article
Corporate Creators:Biosecurity Queensland
Additional Information:© Wiley Periodicals Inc.
Keywords:Cyanobacterium; Cylindrospermopsis raciborskii; Cylindrospermopsin; Cattle mortality; Hepatotoxin.
Subjects:Veterinary medicine > Veterinary toxicology
Veterinary medicine > Other diseases and conditions
Live Archive:25 Mar 2004
Last Modified:03 Sep 2021 16:47

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