这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研究小组和比利时根特大学一起定义和发现了这种细菌。这项发现将?016??-10日在都柏林举行的国际猪兽医协会会议上公布、/font>
胃溃疡：猪的一个常见问颗/strong>
胃溃疡是一种常见病症，可导致不舒服、疼痛、日增重下降、突然死亡。很难对活猪进行这种病症的诊断。如Haesebrouck的小组所指出的，这种疾病的病原似乎为多因素。日粮颗粒大小、应激、其它细菌、日粮中纤维水平都有影响，这些还只是其中一部分、/font>
新型细菌：可能与猪胃溃疡有关
研究小组的一项宏基因组学研究表明，猪胃微生物群中?0%为一种身份不明的梭菌属细菌。这类细菌大部分被认为是致病菌，小组决定对这些细菌进行分离和鉴定、/font>
从猪胃内取样
为了完成研究，小组从4个不同地区的屠宰场收集了60头猪胃微生物样品。最后，他们?个不同胃内分离到?个新型细菌。其?个来源于成年母猪胃，另外6个来源于6-8月龄生长猪胃。所有取样猪均在胃前端发现了溃疡、/font>
分类及与梭菌属其它细菌比较后，如坏疽梭杆菌、死亡梭杆菌，研究者认为这种新型细菌与其系统发育最为接近的梭杆菌存在差异、/font>
需要进一步研穵/strong>
研究小组补充道，小组正在对更大规模的猪胃溃疡内这种病菌的基因组进行克隆和测序。这些研究及试验性感染研究都推动了进一步理解微生物在猪胃溃疡的发生中的潜在作用、/font>
附原文：New bug likely related to gastric ulcers in pigs
Scientists have described and discovered a new bacterium that may be involved in creating gastric ulcers in pigs.
The new bacterium has been proposed to be called?Fusobacterium gastrosuis. The discovery and description was made by a team of researchers, led by Professor Freddy Haesebrouck, associated with?Ghent University, Belgium.
The discovery was described in a poster presentation at the recent?International Pig Veterinary Society （IPVS Congress, held in Dublin, Ireland, 7-10 June 2016.
Gastric ulcers: A common problem in pigs
Gastric ulceration is a common phenomenon and can lead to discomfort, pain, decreased daily weight and sudden death. The phenomenon is usually difficult to diagnose in live pigs. As?Haesebrouck and his team point out, the etiology of this disease appears to be multifactorial. Pellet size, stress, other bacteria or the levels of fibre in pig diets are all thought to play a role, just to name a few.
A very severely damaged stomach.?Photo: Danish Pig Research Centre
The team said that results of a metagenomics study showed that an unidentified Fusobacterium?species represented about 20% of the gastric microbial community. Most of these species are considered to be pathogens, the team decided to isolate and characterise it.
Swabs from pig stomachs
In order to do so, the team took swabs from 4 regions of 60 pig stomachs at a slaughterhouse. Eventually, they found 9 isolates of the new species from 9 different stomachs. In total, 3 of these were found in adult sows and 6 in pigs between 6 and 8 months. All isolates were obtained from pigs with ulceration of the upper-part of the stomach.
Having classified it, and compared it to other?Fusobacterium?species like?F. necrogenes?orF. mortiferum, the researchers concluded that the new species “can be differentiated from its nearest phylogenetic neighbours?
More research needed
The team added, “Whole-genome sequencing and quantification of colonisation levels in a larger number of animals are being performed. This, as well as experimental infection studies should allow to obtain better insights into the potential role of the micro-organism in the development of gastric pathologies in pigs.“/font>
The research was carried out by C. De Witte, R. Ducatelle, A. Smet, E. De Bruyne, P. Vandamme, B. Taminiau, B. Flahou and F. Haesebrouck, all attached to Ghent University"s Faculty of Veterinary Medicine.
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科学家已描述和发现了可能与导致猪胃溃疡有关的一种新型细菌 这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研2019-10-11 06:10:00
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科学家已描述和发现了可能与导致猪胃溃疡有关的一种新型细菌 这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研2019-10-09 12:00:00 -
科学家已描述和发现了可能与导致猪胃溃疡有关的一种新型细菌 这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研2019-09-29 11:18:41
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科学家已描述和发现了可能与导致猪胃溃疡有关的一种新型细菌 这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研2019-03-09 04:31:44
科学家已描述和发现了可能与导致猪胃溃疡有关的一种新型细菌 这种新型细菌已经被提议称之为Fusobacterium gastrosuis。Freddy Haesebrouck教授领导的研
2018-11-02 08:16:00
