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《書評》小川真如著『現代日本農業論考存在と当為、日本の農業経済学の科学性、農業経済学への人間科学の導入、食料自給力指標の罠、飼料用米問題、条件不利地域論の欠陥、そして湿田問題』
journal articlejournal articl
書籍紹介『鳥類のデザイン』(カトリーナ・ファン・グラウ 著、鍛原多惠子 訳、川上和人 監訳 ; みすず書房、2021年7月刊、定価6,300円+税、384頁)
Articlejournal articl
Evaluation of efficient and effective baits for the capture of medium-sized carnivores
BulletinThe objective of this study was to investigate effective and efficient baits for ensnaring raccoon dogs, foxes, and raccoons. Six bait types were selected for the study, namely fried chicken, fish sausage, fried bread, apple, caramel corn, and dog food. The baits were evaluated in terms of attractiveness, durability, and cost. The results of the study showed that the most efficient and effective bait for capturing raccoon dog was the combination of fish sausage and caramel corn, which had the lowest cost and highest attractiveness, or fried bread and dog food, which had low cost, high durability, and relatively high attractiveness. However, given that raccoon and fox could not be attracted to the traps, further research is required to gather additional information on these species.departmental bulletin pape
Identification of Three Novel Genes in Phenuiviridae Detected from Aedes Mosquitoes in Hokkaido, Japan
journal articleMosquitoes are important arthropod vectors of arboviruses. The family Phenuiviridae includes several medically important arboviruses, such as the Rift Valley fever phlebovirus and Toscana phlebovirus. Recent comprehensive genetic analyses have identified many novel mosquito-specific viruses that are phylogenetically related to Phenuiviridae. We collected mosquitoes from Hokkaido in northern Japan, and conducted reverse transcription polymerase chain reactions (RT-PCRs) targeting the RNA-dependent RNA polymerase (RdRp) gene of Phenuiviridae. A total of 285 pools, comprising 3,082 mosquitoes from 2 genera and 8 species, were collected. Partial RdRp sequences were detected in 97 pools, which allowed us to classify the viruses into 3 clusters provisionally designated as Etutanne virus (ETTV) 1, 2, and 3. The virus most closely related to ETTVs is Narangue virus (family Phenuiviridae, genus Mobuvirus), which was detected in Mansonia mosquitoes; the nucleotide and amino acid sequences of the Narangue virus are 58.4–66.2% and 64.7–86.7% similar, respectively, to those of ETTVs. PCR and RT-PCR using DNA and RNase digestion methods showed that the ETTVs are RNA viruses that do not form non-retroviral integrated RNA virus sequences in the mosquito genome.journal articl