An investigation of calf carcass contamination by Escherichia coli from the gut contents at slaughter.
An investigation of calf carcass contamination by Escherichia coli from the gut contents at slaughter.
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屠宰时肠道内容物中小牛尸体被大肠杆菌污染的调查。
DOI：
10.1111/j.1365-2672.1976.tb00603.x
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
A. Osborne
中科院分区：
文献类型：
--
作者：
K. Howe;A. Linton;A. Osborne
研究了三组(共36头)犊牛屠宰时的屠体污染程度，并对屠体表面和直肠内容物中发现的大肠杆菌进行了O型抗原的检测。在三分之一的动物中，在身体表面发现的大肠杆菌菌株与在同一头小牛的直肠样本中发现的O型血清型相同。在身体上发现的几乎所有O型血清型都在至少一头牛犊的直肠内容物中发现，这表明发生了身体的交叉污染。从直肠内容物分离的大肠埃希菌均对至少一种抗菌剂耐药。
The degree of carcass contamination at slaughter of three groups of calves (a total of 36 animals) was studied and the O-antigen types of Escherichia coli found on the carcass surface and in rectal contents were determined. In one-third of the animals E. coli strains found on the surface of a carcass belonged to the same O-serotype as those found in the rectal sample of the same calf. Nearly all the O-serotypes found on the carcasses were also found in the rectal contents of at least one calf, showing that cross-contamination of carcasses had occurred. The E. coli isolated from the rectal contents were all resistant to at least one antibacterial agent.