Giesecke W H, Barnard M L
J S Afr Vet Assoc. 1986 Jun;57(2):95-101.
From this investigation, it is apparent that owing to the superior diagnostic differentiating of udder conditions by means of the IDF/BSA criteria, a range of detailed data has become available which facilitates an unprecedented insight in the dynamic balancing during normal lactation of several health states determinable at subclinical levels. The findings therefore from different points of view augment the corresponding results generated during the preceding investigation by means of the IDF criteria of acknowledged diagnostic limitations. In general, the data suggests that regardless of the diagnostic technique used for determinations during normal lactation on bovine udder conditions, udder health as such depends on 3 major determinants, namely intramammary epithelial integrity, intramammary somatic cellular defence and intramammary bacterial challenge. Subclinical septic mastitis, clearly, develops through different types of gradually escalating deteriorations of health states which depend on several pathways of pathogenetic development. These are subject on the one hand to the 3 major determinants of udder health, and on the other hand to the nature and magnitude of their single and combined challenging. The deterioration of udder health in some quarters is opposed by the improvement of that in others which in the light of data on the rather transient persistence of health states implies, that deterioration of condition is at all levels of its development opposed directly but, possibly, somewhat delayed by the cow's efforts at restoring udder health as such to its completely normal level.(ABSTRACT TRUNCATED AT 250 WORDS)
从本次调查中可以明显看出，由于采用国际乳品联合会/乳房健康协会（IDF/BSA）标准对乳房状况具有卓越的诊断区分能力，现已获得一系列详细数据，这有助于以前所未有的视角洞察正常泌乳期间亚临床水平可确定的几种健康状态的动态平衡。因此，从不同角度得出的研究结果，补充了之前采用国际乳品联合会标准进行调查时所产生的相应结果，而该标准存在公认的诊断局限性。总体而言，数据表明，无论在正常泌乳期间用于确定奶牛乳房状况的诊断技术如何，乳房健康本身取决于三个主要决定因素，即乳腺上皮完整性、乳腺体细胞防御和乳腺细菌感染。显然，亚临床化脓性乳腺炎是通过不同类型的、逐渐升级的健康状态恶化发展而来的，这取决于多种致病发展途径。一方面，这些途径受乳房健康的三个主要决定因素影响，另一方面，也受其单一和综合感染的性质及程度影响。某些乳房健康状况的恶化，会被其他乳房健康状况的改善所抵消，鉴于健康状态相当短暂的持续时间数据，这意味着，在病情发展的各个阶段，病情恶化都直接受到奶牛恢复乳房健康至完全正常水平努力的对抗，但可能会稍有延迟。（摘要截选于250字）
