Corner L, Melville L, McCubbin K, Small K J, McCormick B S, Wood P R, Rothel J S
CSIRO, Division of Animal Health, Parkville, Victoria.
Aust Vet J. 1990 Nov;67(11):389-92. doi: 10.1111/j.1751-0813.1990.tb03020.x.
The sensitivity of the abattoir inspection procedure introduced for Australian export beef in 1976 was compared to a detailed necropsy procedure for the detection of tuberculous lesions in cattle. In a sample of cattle that were reactors to the tuberculin test, abattoir inspection failed to detect an estimated 47% of cattle with lesions. The detailed necropsy examination of cattle with lesions of tuberculosis identified 21 sites of infection compared with 13 to 18 in cattle examined by routine meat inspection procedures. Of the lesions detected during detailed necropsy, 15.9% did not involve the thoracic cavity or the medial retropharyngeal lymph nodes. The failure to detect lesions during abattoir inspection has its greatest significance in an animal with a single lesion. If the 245 cattle found with single lesions during detailed necropsy had been examined by abattoir inspection using the 1976 or the 1986 procedures, 0.8 and 8.9%, respectively, of these animals would not have been detected because the diseased tissues would not have been examined. If meat inspection is to provide an effective means of monitoring the level of bovine tuberculosis during the final stages of eradication, a procedure no less sensitive than that introduced in 1976 should be used.
将1976年引入的澳大利亚出口牛肉屠宰场检查程序的敏感性与用于检测牛结核病变的详细尸检程序进行了比较。在结核菌素试验呈阳性反应的牛样本中，屠宰场检查未能检测出估计47%有病变的牛。对患有结核病变的牛进行详细尸检，发现有21个感染部位，而通过常规肉类检查程序检查的牛有13至18个感染部位。在详细尸检期间检测到的病变中，15.9%不涉及胸腔或咽后内侧淋巴结。屠宰场检查未能检测到病变，在单发病变的动物中具有最大的意义。如果对在详细尸检期间发现的245头单发病变的牛采用1976年或1986年的程序进行屠宰场检查，由于未检查患病组织，这些动物中分别有0.8%和8.9%不会被检测到。如果肉类检查要在根除的最后阶段提供一种监测牛结核病水平的有效手段，就应该采用一种至少与1976年引入的程序一样敏感的程序。
