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Experimentally induced equine bracken poisoning by thermostable antithiamine factor (SF factor) extracted from dried bracken



Experimentally induced equine bracken poisoning by thermostable antithiamine factor (SF factor) extracted from dried bracken



Journal of the Japan Veterinary Medical Association 37(11): 730-734



Fluid containing a thermostable antithiamine factor (SF factor) was obtained by boiling an aqueus suspension of dried bracken for 30 minutes to inactivate thiaminase. A 2-year-old horse of 185 kg body weight was given 1.5 kg of this fluid orally (equivalent to 8.1 g dried bracken per kg bodyweight) for 30 days, while in 3-year-old horse of 441 kg was given 500 g of this fluid (equivalent to 1.13 g/kg) for 84 days.

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