Studies on the survival time of the bovine tubercle bacillus in soil, soil and dung, in dung and on grass, with experiments on the preliminary treatment of infected organic matter and the cultivation of the organism.
Studies on the survival time of the bovine tubercle bacillus in soil, soil and dung, in dung and on grass, with experiments on the preliminary treatment of infected organic matter and the cultivation of the organism.
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DOI：
10.1017/s002217240001843x
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发表时间：
1933-01-01
影响因子：
--
通讯作者：
Maddock, ECG
中科院分区：
文献类型：
--
作者：
Maddock, ECG
目前可以有把握地说，在生长的草上，牛B。在英格兰南部，肺结核在夏季至少能存活49天。在进行上述实验的同时，还对豚鼠进行了饲养实验，以发现通过接种证明对这些动物具有感染性的杆菌，在暴露于草地上不同时间后，是否能够通过消化道途径建立感染。为了达到这个目的，在感染之后，每12只豚鼠中的一群被喂食草，间隔时间逐渐增加。这些实验正在进行中，希望是在类似感染的牧场上喂养小牛的初步实验。
For the present it may safely be stated that on growing grass, bovine B. tuberculosis remain alive and virulent, for a period of at least 49 days in summer, in the south of England. Simultaneously with the experiments described above, a feeding experiment on guinea-pigs has been carried out, to discover whether the bacilli, proved to be infective for these animals by inoculation are, after exposure on grass for varying times, capable of setting up infection by the alimentary route. For this purpose a number of colonies of a dozen guinea-pigs each is being fed on grass at increasing intervals after the time of infection. These experiments, which are in progress, are it is hoped preliminary to the feeding of calves on similarly infected pasture.