Nitrite poisoning in cats and dogs fed a commercial pet food

Authors: Worth A.J.; Ainsworth S.J.; Brocklehurst P.J.; Collett M.G.

Source: New Zealand Veterinary Journal, Volume 45, Number 5, 1 October 1997 , pp. 193-195(3)

Publisher: New Zealand Veterinary Association

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Abstract:

The death of three cats, from two separate households, was linked to toxic concentrations of sodium nitrite used as a preservative in a commercial pet food. Post-mortem examination of the three cats revealed a brownish discoloration of the blood suggestive of methaemoglobinaemia. Analysis of two samples of the pet food fed to the cats revealed a mean concentration of 2850 mg of total nitrite per kg of food (as fed). In a further incident, ataxia and weakness was noticed in two of four dogs after they were fed the same brand of pet food. One dog was successfully treated for methaemoglobinaemia with intravenous methylene blue.

Keywords: Cat; Dog; Nitrate-nitrite; Nutrition; Poisoning - chemical

Document Type: Short communication

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