江苏地区鸡大肠杆菌病流行特点及其耐药特性分析

鸡大肠杆菌病是现代养禽业危害最大、损失最严重的疾病之一。８０年代后期及９０年代初，随着江苏地区养禽业的发展，该病的危害也日趋严重，在一定程度上制约了该地区养禽业的持续发展。本文就江苏地区鸡大肠杆菌病的流行特点及病原的药物敏感性进行了分析，现总结如下。...     

Antagonism of salicylate by pantoyltaurine

Like pantothenic acid, pantolactone, and the pantoate ion, pantoyltaurine and other pantothenic acid analogues of this type antagonize the inhibitory effect of salicylate on E. coli. It is suggested that the active antagonist in a solution of such an analogue is pantolactone or pantoate. These (particularly the former) could conceivably be contaminants of the analogues. However, the liberation of pantoate by hydrolysis, appears to be a more likely explanation for the antisalicylate effect. The presence of pantolactone or pantoate in a solution of pantoyltaurine and similar analogues of pantothenic acid provides a possible explanation for the ineffectiveness of these drugs in inhibiting the growth of microorganisms which can utilize pantolactone or pantoate for the synthesis of pantothenic acid.