Abstract
The effects of intravenous urea infusion on glucose turnover, glucose carbon recycling, glucose pool size and glucose clearance were studied in buffaloes kept in either normal ambient temperature or acute heat exposure. Heat stressed animals showed increases in glucose turnover rate, plasma glucose concentration and glucose clearance but decreased glucose carbon recycling. A marked reduction of glucose turnover and glucose clearance associated with increased plasma glucose concentration in heat stressed animals after urea infusion reflects under-utilization of this compound. Mechanisms involved in glucose metabolism during urea infusion in buffaloes are discussed.
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