Abstract
The present study was undertaken to determine whether psychrotrophicClostridiumspp. could induce a bone-taint condition when inoculated into the joints of hot bovine hind legs that were then subjected to marginally abusive cooling conditions. The stifle and hip joints of the hind legs of freshly slaughtered cattle were inoculated with single-strain cultures of 14 psychrotrophicClostridiumspp. isolated from spoiled chilled meat or with cultures of a mesophilic or a psychrotrophic reference strain. Inoculated legs were chilled in a cooling tunnel programmed to simulate marginally abusive cooling (deep tissue temperature reduced from 38 to 20°C in 20h). After cooling, deep-seated, strongly offensive odours were evident in some of the inoculated joints and tissue surrounding those joints. It can, therefore, be postulated that at least some strains of psychrotrophicClostridiumspp. have the potential to be primary causative agents of bone-taint.
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