- 著者
- Yuki HATTA Tsutomu OMATSU Shinobu TSUCHIAKA Yukie KATAYAMA Satoshi TANIGUCHI Joseph S MASANGKAY Roberto PUENTESPINA Jr Eduardo ERES Edison COSICO Yumi UNE Yasuhiro YOSHIKAWA Ken MAEDA Shigeru KYUWA Tetsuya MIZUTANI
- 出版者
- JAPANESE SOCIETY OF VETERINARY SCIENCE
- 雑誌
- Journal of Veterinary Medical Science (ISSN:09167250)
- 巻号頁・発行日
- vol.78, no.8, pp.1347-1350, 2016 (Released:2016-09-01)
- 参考文献数
- 27
- 被引用文献数
- 6 14
Bats are the second diversity species of mammals and widely distributed in the world. They are thought to be reservoir and vectors of zoonotic pathogens. However, there is scarce report of the evidence of pathogenic bacteria kept in bats. The precise knowledge of the pathogenic bacteria in bat microbiota is important for zoonosis control. Thus, metagenomic analysis targeting the V3-V4 region of the 16S rRNA of the rectal microbiota in Rousettus amplexicaudatus was performed using high throughput sequencing. The results revealed that 103 genera of bacteria including Camplyobacter were detected. Campylobacter was second predominant genus, and Campylobacter coli and Campylobacter jejuni were identified in microbiome of R. amplexicaudatus. Campylobacteriosis is one of the serious bacterial diarrhea in human, and the most often implicated species as the causative agent of campylobacteriosis is C. jejuni. Therefore, we investigated the prevalence of C. jejuni in 91 wild bats with PCR. As a result of PCR assay targeted on 16S-23S intergenic spacer, partial genome of C. jejuni was detected only in five R. amplexicaudatus. This is the first report that C. jejuni was detected in bat rectal swab samples. C. jejuni is the most common cause of campylobacteriosis in humans, transmitted through water and contact with livestock animals. This result indicated that R. amplexicaudatus may be a carrier of C. jejuni.
- 著者
- Keiko ODAGIRI Masaaki HAMANO Yasuhiro YOSHIKAWA
- 出版者
- JAPANESE SOCIETY OF VETERINARY SCIENCE
- 雑誌
- Journal of Veterinary Medical Science (ISSN:09167250)
- 巻号頁・発行日
- vol.61, no.6, pp.595-601, 1999-06-25 (Released:2000-04-12)
- 参考文献数
- 17
The present study aimed to clarify an individual character of squirrel monkey by analysing a complicated behaviour, the egg-eating behaviour series (ES), of laboratory-reared squirrel monkeys. Eight types of unit movements were observed in the ES: the initial taking of the egg by hand; rolling it between the fingers; sniffing it in its shell; biting it in its shell; pressing or rubbing it against a surface of the cage; opening or peeling it; eating it; or putting it down without eating. In the first experiment, the behaviour of 72 monkeys was recorded by direct observation or by a video camera, following which the sequences of the movement from a total of 378 ES were analysed. Three statistically significant ES were detected (Ta-Bi-Op/Pe-Ea, Ta-Ro-Bi-Op/Pe-Ea and Ta-Pr/Ru-Bi-Op/Pe-Ea). In the second experiment, eight squirrel monkeys were selected at random from the same group and 31 to 36 ES for each monkey were observed and analysed. These monkeys were classified into a pressing/rubbing (Pr/Ru) group and a no-Pr/Ru group. Pr/Ru appeared to have no relationship to the monkey's age or sex. Furthermore, the Pr/Ru group monkeys contained individuals always exhibiting Pr/Ru in their ES and others sometimes lacking Pr/Pu in their ES. In short, the monkeys could be divided into two groups (ie., Pr/Ru and no-Pr/Ru) and they displayed their own individual characteristic ES. We concluded that the ES observed in this experiment suggest that the squirrel monkeys acquired individual characteristics in their ES in the laboratory environment.
- 著者
- Yasuhiro YOSHIKAWA Motohiro HORIUCHI Naotaka ISHIGURO Mutsuyo KADOHIRA Satoshi KAI Hidehiro MIZUSAWA Chisato NAGATA Takashi ONODERA Tetsutaro SATA Toshiyuki TSUTSUI Masahito YAMADA Shigeki YAMAMOTO
- 出版者
- 公益社団法人 日本獣医学会
- 雑誌
- Journal of Veterinary Medical Science (ISSN:09167250)
- 巻号頁・発行日
- vol.74, no.8, pp.959-968, 2012 (Released:2012-09-03)
- 参考文献数
- 13
The Food Safety Commission (FSC) of Japan, established in July 2003, has its own initiative to conduct risk assessments on food stuffs known as “self-tasking assessment”. Within this framework, the FSC decided to conduct a risk assessment of beef and beef offal imported into Japan from countries with no previous BSE reports; thus, a methodology was formed to suit to this purpose. This methodology was partly based on the previous assessments of Japanese domestic beef and beef imported from U.S.A./Canada, but some modifications were made. Other organizations’ assessment methods, such as those used for BSE status assessment in live cattle by the OIE and EFSA’s GBR, were also consulted. In this review, the authors introduce this alternative methodology, which reflects (1) the risk of live cattle in the assessed country including temporal risks of BSE invasion and domestic propagation, with the assessment results verified by surveillance data, and (2) the risk of beef and beef offal consisting of cumulative BSE risk by types of slaughtering and meat production processes implemented and the status of mechanically recovered meat production. Other possible influencing factors such as atypical BSE cases were also reviewed. The key characteristic of the current assessment is a combination of the time-sequential risk level of live cattle and qualitative risk level of meat production at present in an assessed country.