獣医学科

森田 達志

モリタ タツシ  (Tatsushi Morita)

基本情報

所属
日本獣医生命科学大学 獣医学部 獣医学科 獣医寄生虫学研究室 准教授
学位
博士(獣医学)(日本獣医生命科学大学)

J-GLOBAL ID
200901097927084750
researchmap会員ID
1000192389

委員歴

 2

論文

 30
  • Aritada YOSHIMURA, Daigo AZAKAMI, Miori KISHIMOTO, Takahiro OHMORI, Daiki HIRAO, Shohei MORITA, Shinogu HASEGAWA, Tatsushi MORITA, Ryuji FUKUSHIMA
    Journal of Veterinary Medical Science 85(5) 541-545 2023年  
  • Natsuko Sugiura, Aki Tanaka, Kazuhiko Ochiai, Toshiaki Yamamoto, Tatsushi Morita, Takuya Kato, Yoshi Kawamoto, Toshinori Omi, Shin-Ichi Hayama
    The Journal of veterinary medical science 82(9) 1306-1311 2020年7月20日  査読有り
    Although kinship (parent-offspring or siblings) contact has been suggested as a driving factor for sarcoptic mange epizootic in raccoon dogs (Nyctereutes procyonoides), no effect has been reported. In contrast, habitat fragmentation caused by urbanization may result in a high occurrence of sarcoptic mange, because habitat fragmentation may promote contact infection by increasing the population density of raccoon dogs. The habitat distribution of raccoon dogs may therefore influence epizootic sarcoptic mange. The genetic relationship between raccoon dogs was analyzed to examine Sarcoptes scabiei transmission between kin. The relationship between S. scabiei infection and the habitat of raccoon dogs was also investigated. Seventy-five raccoon dogs from Takasaki, Gunma prefecture, were examined from 2012 to 2018; 23 were infested with S. scabiei. The genotypes were determined using 17 microsatellite loci, and the relationships were categorized into four patterns by the ML-Relate software. There was no significant difference between infested pairs and other two pairs (Chi-squared test: χ2=0.034, df=1, P=0.85). Although it was difficult to predicate because the mortality rate was unclear in this study, kinship contact does not seem to be an important factor for sarcoptic mange epizootic. S. scabiei infection rates were significantly associated with the location of village sections (OR=1.55, 95%CI=1.11-2.17, P=0.011). It is suggested that direct/indirect contact between individuals living closely together is an important factor for the transmission of S. scabiei.
  • Sayed Samim Rahpaya, Shinobu Tsuchiaka, Mai Kishimoto, Mami Oba, Yukie Katayama, Yuka Nunomura, Saki Kokawa, Takashi Kimura, Atsushi Kobayashi, Yumi Kirino, Tamaki Okabayashi, Nariaki Nonaka, Hirohisa Mekata, Hiroshi Aoki, Mai Shiokawa, Moeko Umetsu, Tatsushi Morita, Ayako Hasebe, Keiko Otsu, Tetsuo Asai, Tomohiro Yamaguchi, Shinji Makino, Yoshiteru Murata, Ahmad Jan Abi, Tsutomu Omatsu, Tetsuya Mizutani
    Journal of veterinary science 19(3) 350-357 2018年5月31日  査読有り
    Bovine abortion, diarrhea, and respiratory disease complexes, caused by infectious agents, result in high and significant economic losses for the cattle industry. These pathogens are likely transmitted by various vectors and reservoirs including insects, birds, and rodents. However, experimental data supporting this possibility are scarce. We collected 117 samples and screened them for 44 bovine abortive, diarrheal, and respiratory disease complex pathogens by using Dembo polymerase chain reaction (PCR), which is based on TaqMan real-time PCR. Fifty-seven samples were positive for at least one pathogen, including bovine viral diarrhea virus, bovine enterovirus, Salmonella enterica ser. Dublin, Salmonella enterica ser. Typhimurium, and Neospora caninum; some samples were positive for multiple pathogens. Bovine viral diarrhea virus and bovine enterovirus were the most frequently detected pathogens, especially in flies, suggesting an important role of flies in the transmission of these viruses. Additionally, we detected the N. caninum genome from a cockroach sample for the first time. Our data suggest that insects (particularly flies), birds, and rodents are potential vectors and reservoirs of abortion, diarrhea, and respiratory infectious agents, and that they may transmit more than one pathogen at the same time.
  • Tatsushi Morita, Yutaka Momota, Akihiro Mori, Hitomi Oda, Kazunori Ike, Toshinori Sako
    Journal of Veterinary Medical Science 80(4) 672-675 2018年4月1日  査読有り
    A 12-year-old female Shih-Tzu with hyperadrenocorticism and hypothyroidism developed concurrent refractory generalized demodicosis that did not respond to doramectin treatment. Although amitraz treatment was effective, the dog developed severe diabetes, which resulted in the cessation of amitraz and trilostane. Attempts to control the diabetes were unsuccessful, and its hyperadrenocorticism was left untreated, leading to the recurrence of demodicosis. However, demodicosis went into complete remission with a single dose of fluralaner. Transient erythematous papules appeared on the trunk three days after the administration of fluralaner, but no other adverse reactions were noted. We demonstrated that fluralaner is a potent treatment for demodicosis, and skin eruptions are possible after the first dose of the drug.
  • Morita T, Ohmi A, Kiwaki A, Ike K, Nagata K
    Journal of medical entomology 55(2) 323-328 2018年2月  査読有り

MISC

 40

書籍等出版物

 24

講演・口頭発表等

 75

担当経験のある科目(授業)

 14