Selection of resistant coliform bacteria in the intestine of pigs following flock versus individual treatment with neomycin against post-weaning diarrhoae or amoxicillin against umbilical infection.

IF 2.1 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Egle Kudirkiene, Esben Østergaard Eriksen, Gang Liu, Anja Ejlersgård Christensen, Marianne Viuf Agerlin, Inge Larsen, Nicolai Rosager Weber, Ken Steen Pedersen, Jens Peter Nielsen, John Elmerdahl Olsen
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Abstract

The aim of this study was to investigate the effect of avoiding flock treatment on resistance levels in the intestine of pigs. To investigate this, studies, each in two pig herds, quantified resistant coliforms by culture method in pigs treated as flock or as individual animal treatments orally with neomycin against post-weaning diarrhea (PWD) or intramuscularly with amoxicillin to prevent umbilical infection. Individual oral treatment against PWD did not lead to a lower number or proportion of resistant coliforms compared to flock treated pigs in any of the two herds under study, despite reduction of treatment incidences to 32% and 35% of pigs. After intramuscular treatment against umbilical infection, fewer resistant bacteria were seen in individually treated piglets in a herd with low treatment incidence (33%), while no reduction of resistant coliform bacteria compared to flock treatment was observed in the other herd with higher treatment incidence (86%). Thus, individual animal treatment reduced the amount of antimicrobial used, but concurrent reduction in resistant coliform bacteria was not always observed.

猪群后肠道中耐药大肠菌群的选择与单独使用新霉素治疗断奶后腹泻或阿莫西林治疗脐部感染的比较
本研究的目的是探讨避免畜群处理对猪肠道耐药水平的影响。为了调查这一点,研究人员分别在两个猪群中,通过培养方法对猪的耐药大肠菌群进行量化,这些猪作为群体处理,或作为个体动物口服新霉素治疗断奶后腹泻(PWD)或肌肉注射阿莫西林以预防脐部感染。在研究的两个猪群中,单独口服治疗的PWD并未导致耐药大肠菌群的数量或比例低于接受治疗的猪群,尽管治疗发生率分别降低到32%和35%。在对脐带感染进行肌肉注射治疗后,在治疗发生率较低(33%)的猪群中单独治疗的仔猪中发现的耐药细菌较少,而在另一组治疗发生率较高(86%)的猪群中,未观察到耐药大肠菌群的减少。因此,个体动物治疗减少了抗菌素的使用量,但并不总是观察到耐药大肠菌群细菌的同时减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Letters in Applied Microbiology
Letters in Applied Microbiology 工程技术-生物工程与应用微生物
CiteScore
4.40
自引率
4.20%
发文量
225
审稿时长
3.3 months
期刊介绍: Journal of & Letters in Applied Microbiology are two of the flagship research journals of the Society for Applied Microbiology (SfAM). For more than 75 years they have been publishing top quality research and reviews in the broad field of applied microbiology. The journals are provided to all SfAM members as well as having a global online readership totalling more than 500,000 downloads per year in more than 200 countries. Submitting authors can expect fast decision and publication times, averaging 33 days to first decision and 34 days from acceptance to online publication. There are no page charges.
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