کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3395662 1221698 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction of chlortetracycline-resistant Escherichia coli in weaned piglets fed fermented liquid feed
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی میکروب شناسی
پیش نمایش صفحه اول مقاله
Reduction of chlortetracycline-resistant Escherichia coli in weaned piglets fed fermented liquid feed
چکیده انگلیسی

We investigated the change in chlortetracycline resistance in 360 Escherichia coli strains separated from the feces of piglets fed fermented liquid feed (FLF) in comparison with those fed dry feed (control). The total amount of lactic acid bacteria in feces was 8.77×108 CFU/g DM at weaning, which increased to 1.23×1012 CFU/g DM (FLF) at 28 days after weaning (P<0.001). As a result of the antibiotic susceptibility test, almost all isolates were chlortetracycline-resistant (CTCR) until 14 days after weaning both in the FLF and control groups. At 28 days, the CTCRE. coli decreased to 22.2% in the FLF group, while the proportion of resistant bacteria was 88.9% in the control group. In addition, as a result of the gene analysis, it was clarified that there is a relation between the decrease in the minimum inhibitory concentration values and the possession rate of the tetracycline-resistance gene tet(A), tet(B) and tet(D). These results show that FLF caused an increase in the number of lactic acid bacteria in the intestines, and suggested that the feeding of FLF can possibly reduce antibiotic-resistance bacteria.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Anaerobe - Volume 14, Issue 4, October 2008, Pages 201–204
نویسندگان
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