著者

Kiwamu HANAZONO Mako NAKAMOTO Ai HORI Kenjiro MIYOSHI Tetsuya NAKADE Takaharu ITAMI Tadashi SANO Keiko KATO Akifumi ITO Kakeru TANAKA Kazuto YAMASHITA Daiji ENDOH

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.22-0122, (Released:2022-10-14)

被引用文献数

1

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This study investigated the association between caudal vena cava (CVC) size and circulatory dynamics in dogs using computed tomography (CT) under general anesthesia. The subjects were 104 dogs who had undergone CT under general anesthesia in the past. The ratio of short diameter of the CVC to aortic diameter (CVCS/Ao) and the ratio of long to short diameter of the CVC (CVCL/CVCS) in the thorax and abdomen, respectively, were calculated using factors such as mean blood pressure (MBP), shock index (SI), anemia, hypoproteinemia, presence of intra-abdominal mass, and cardiac disease. There was a significant but negligible negative correlation between CVCS/Ao and MBP. In contrast, no significant correlation was found between CVC size and SI. The low MBP group had significantly higher CVCS/Ao of the thorax than the normal MBP group. The group with intra-abdominal mass had significantly lower CVCS/Ao of the abdomen than the group without intra-abdominal mass. The group with cardiac disease had significantly lower CVCL/CVCS of the thorax than the group without cardiac disease. In multiple regression analysis, low MBP, cardiac disease, intra-abdominal mass, and anemia were significant factors for CVCS/Ao of the thorax, CVCL/CVCS of the thorax, CVCS/Ao of the abdomen, and CVCL/CVCS of the abdomen, respectively. In conclusion, CVC size assessment using CT in dogs under general anesthesia is influenced by various factors.

著者

Haruka KATAOKA Nanami KOITA Natsuko Ito KONDO Hiroshi C. ITO Momoko NAKAJIMA Kunikazu MOMOSE Hiroko IIMA Tomoo YOSHINO Tomoko AMANO Takio KITAZAWA Daiji ENDOH Nobuyoshi NAKAJIMA Hiroki TERAOKA

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.21-0516, (Released:2022-01-18)

被引用文献数

4

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The red-crowned crane Grus japonensis in Hokkaido, Japan forms a closed population as a residence that is independent of the mainland population. Based on observations of a limited number of individuals as well as cranes in captivity, red-crowned cranes are omnivores and eat fish, worms, insects and plants in their own territories except in winter, when they are fed with dent corn that is supplied in eastern Hokkaido. DNA metabarcoding based on high throughput sequencing was carried out using universal primer sets for cytochrome oxidase subunit I gene. Feces from 27 chicks collected in June and July in the period from 2016 to 2018 and intestinal contents from 33 adult and subadult cranes that were found dead almost throughout year in 2006–2013 in the field in eastern Hokkaido were used. Although compositions varied considerably in the cranes, both insects and fish were found in adults and subadults to the same extents, while insects were predominant in chicks. Both insects and fish were detected in all seasons for adults and subadults. Horse flies, scarab beetles and weevils accounted for the most of the insects regardless of the life stage. Dace, stickleback, flatfish and sculpin were the major fish species in adults, while chicks ate almost only stickleback. The results provide the first comprehensive data on carnivorous diets in wild red-crowned cranes in eastern Hokkaido as basis for conservation of red-crowned cranes, for which the life style and area continuing to change.

著者

Sothavy CHHAY Kiwamu HANAZONO Jo KITAHARA Ai HORI Kenjiro MIYOSHI Takaharu ITAMI Daiji ENDOH Tetsuya NAKADE

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.21-0086, (Released:2021-07-26)

被引用文献数

1

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Gel pads are commonly used in skin ultrasonography; however, the effects of their thickness are unknown. This study investigated the effects of pad thickness on measurements of skin thickness in 10 beagle dogs. Sonograms to measure neck skin thickness were captured without pads and using pads with thicknesses of 3, 5, 10, and 20 mm. Without pads, acoustic shading was observed due to air bubbles in the coupling gel. With 20-mm pads, echogenic artifacts were observed on the skin surface. Entry echo with 20-mm pads was significantly higher than with 3-mm pads. This suggests that visibility of the skin structure could be affected when a gel pad is not used or when a thick gel pad is selected.