@article{oai:yamagata.repo.nii.ac.jp:00004981,
 author = {高橋, 敏能 and 渡邉, 啓一郎 and 松山, 裕城 and 堀口, 健一},
 issue = {4},
 journal = {山形大学紀要．農学, Bulletin of the Yamagata Unibersity.Agricultural science},
 month = {Feb},
 note = {論文(Article), By using 137 Japanese serows that lived around Yamagata city in the winter of 1993, 1996, 1997 and 1998, a nutritional-physiological study was conducted to investigate about body weight, kidney fatty acids, rumen liquor and its digestibility, and plasma components. The average age of 137 Japanese serows was 6.1 years old (male 5.2 years old, pregnant female 7.7 years old and non-pregnant female 5.5 years old). The average body weight of 137 Japanese serows was 38.8 kg (36.9 kg for males, 45.5 kg for pregnant females and 34.1 kg for non-pregnant females). The average body weight of Japanese serows in Yamagata city was heavier and the whole kidney fat index (WKFI) was higher than those of Japanese serows captured in other areas during winter. In addition, WKFI tended to increase when the average temperature was high in January and decreased when the amount of snow was much in same month, respectively. There was no difference in kidney major fatty acid compositions among sexes. As the result of applying the rumen liquor properties and plasma chemical components at the capture time to a third-order polynomial regression equation, the pH was 5.9 on average, with little change and stable during capture time. The average volatile fatty acid concentration was 653 mg/dL, peaked near 13:00, and then tended to decrease slightly. The concentration of ruminal ammonia nitrogen showed a minimum value around 13:00 and tended to increase thereafter. The mean of plasma glucose concentration was 103 mg/dL, the maximum value tended to appear after 10:00 and the minimum value tended to appear after 13:00, but the fluctuation was large. The plasma insulin concentration reached its highest level around 11:30, but remained low as a whole. The plasma free fatty acid concentration reached its highest value around 13:00 and averaged 397 μEq/L, maintaining a high value during capture time. As the result of in vitro digestion test using the rumen liquors of three kinds of animals, there was no significant difference among animals in dry matter digestibility and amount of volatile fatty acid production. In acetic acid/propionic acid production ratio, cattle and Japanese serow tended to be higher than sheep, and in the amount of methane production those animals were significantly higher than sheep (P<0.01), respectively. From the above results, it was inferred that the Japanese serow living around Yamagata city ingested a large amount of nutritious coniferous leaves before winter to promote fatty acid synthesis from carbohydrates and increased accumulated fat in body. In addition, since Japanese serow ingested intermittently the leaves of coniferous trees while moving during the daytime in winter, it was found that they can inhabit under sufficient nutritional conditions for overwintering. It was speculated that the digestion of rumen liquor of Japanese serow had intermediate fermentation characteristics between cattle and sheep.},
 pages = {321--340},
 title = {山形市周辺に生息するニホンカモシカ（Capricornis crispus）の体重，腎脂肪脂肪酸，第一胃内容液消化性および血漿成分に関する栄養生理学的研究},
 volume = {18},
 year = {2021}
}