Petkov M
Vet Med Nauki. 1980;17(5):10-7.
By applying the technique of ligated intestinal segments, comparative studies were carried out on the enteropathogenic character of E. coli eliminated from calves. In was proved that the anatomic-topographic position of ligated intestinal segments, as well as the quantity of the innoculated bacterial suspension, exercise an influence on the intensity of intestinal reaction. The first 2.5 m and the last 4 m of the thin intestines are inappropriate for the investigation because of the spurious reactions that take place in them. In was proved that the intestinal reaction was more pronounced in the front ofa the thin intestines in comparison with that in the pack part. Canamicin and hyperimmune K 99 antiserum, applied intramuscularly and subcutaneously, did not exercise any special influence on the enteropathogenic activity of E. coli strains. It is recommended that the antibiotics and the serum should be applied orally for the neutralization of EEC in the digestive tract.
通过应用结扎肠段技术，对从犊牛体内分离出的大肠杆菌的肠道致病特性进行了比较研究。结果证明，结扎肠段的解剖学-地形学位置以及接种细菌悬液的量，都会对肠道反应的强度产生影响。由于细肠的前2.5米和后4米会出现假反应，因此不适合用于该研究。结果证明，与后部相比，细肠前部的肠道反应更为明显。肌肉注射和皮下注射的庆大霉素和高免K99抗血清，对大肠杆菌菌株的肠道致病活性没有任何特殊影响。建议口服抗生素和血清以中和消化道中的肠产毒性大肠杆菌。
