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Scientific Article

Effect of potassium cyanide on behaviour and time to death in possums

, , , , &
Pages 60-64 | Accepted 22 Feb 1999, Published online: 22 Feb 2011
 

Abstract

dAim. To assess the sickness behaviours of possums after eating a lethal dose of potassium cyanide.

dMethod. Spontaneous behaviour and the time to loss of physical responses were examined.

dResults. Cyanide ingestion caused a short-lasting period of mild respiratory stimulation. There was no salivation, retching or vomiting. Convulsions occurred in 73% of the possums. After the ingestion of cyanide, the average time to onset of ataxia was 3 minutes, the average time to overall loss of consciousness was 6.5 minutes, and the time to cessation of breathing was 18 minutes.

dConclusion. Cyanide is a rapid-acting toxin with few undesirable signs from the welfare perspective.

dKeywords. Possums, pest control, animal welfare, cyanide, intoxication, behaviour.

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