Natural establishment of thiaminase activity in the alimentary tract of newborn lambs and effects on thiamine status and growth rates.


Thiaminase activity was detected in the faeces of lambs at 2 to 5 days of age. Levels of activity increased for 10 days and then declined over the next 3 to 4 weeks. Decreased erythrocyte transketolase activity indicated thiamine insufficiency in lambs with high thiaminase activity. Mean growth rates were 17% less in lambs with high thiaminase activity than… (More)


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