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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Li, Yuan Chu, Qingpo Liang, Tingting Zhou, Bo Li, Huizhi Xu, Feilong Fu, Lingling |
| Description | Country affiliation: China Author Affiliation: Li H ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Chu Q ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Xu F ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Fu L ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Liang T ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Li Y ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.); Zhou B ( College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China. zhoubo@njau.edu.cn.) |
| Abstract | The presence of antibiotic resistance genes (ARGs) is one of the most important public health concerns. Six tetracycline resistance genes (TRGs-tetA, tetC, tetL, tetO, tetW, and tetX) were quantified using real-time quantitative polymerase chain reaction (qPCR) in the fecal microorganisms of weaned pigs. Two hundred 35-day-old weaned pigs were fed different dietary antibiotics for 28 days: (1) no antibiotic as the control treatment (CT); (2) chlortetracycline, bacitracin zinc and colistin sulfate (CBC); (3) bacitracin zinc and colistin sulfate (BC); and (4) chlortetracycline (CTC). The detection frequencies (DFs) of tetC, tetL, and tetW were 100 %; and the DFs of tetA, tetD, tetM, tetO, and tetX were 65 %. The relative abundances (tet/16S rRNA gene copy numbers) of six tet genes (tetA, tetC, tetL, tetO, tetW and tetX) were between 1.5 × 10(-4) and 2.0 × 10(-1). In the group CTC, the relative abundances of tetC (P < 0.01), tetL (P < 0.01), tetO (P < 0.05), tetW (P < 0.01), and tetX (P < 0.01) were greater than those of the group CT. Compared with the group CTC, the relative abundances of tetC (P < 0.01), tetL (P < 0.01), and tetW (P < 0.01) were decreased in the CBC and BC groups. These results indicate that a combination of different antibiotics suppressed the abundance increase of a part of tet genes, which suggests that a combination of antibiotics produces multiple selection pressures on fecal microorganism of pigs. |
| ISSN | 09441344 |
| Issue Number | 18 |
| Journal | Environmental Science and Pollution Research |
| Volume Number | 23 |
| e-ISSN | 16147499 |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2016-09-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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