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1995 Fiscal Year Final Research Report Summary

Basic research on development of experimental animal model for weak heat tolerance and bbehavioral thermoregulation

Research Project

Project/Area Number 06557007
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Environmental physiology (including Physical medicine and Nutritional physiology)
Research InstitutionNagasaki University

Principal Investigator

KOSAKA Mitsuo  Institute of Tropical Medicine, Nagasaki University, Professor, 熱帯医学研究所, 教授 (30079983)

Co-Investigator(Kenkyū-buntansha) SAITO Muneo  Central Institute for Experimental Animals, Chief Research associate, 飼育技術研究室々長 (50167417)
SAKAI Akio  Shinshu University, School of Medicine, Associate Professor, 医学部, 助教授 (70020758)
YAMASHITA Shunichi  Nagasaki University, School of Medicine, Professor, 医学部, 教授 (30200679)
MATSUMOTO Takaaki  Institute of Tropical Medicine, Nagasaki University, Research associate, 熱帯医学研究所, 助手 (60199875)
OHWATARI Nobu  Institute of Tropical Medicine, Nagasaki University, Research associate, 熱帯医学研究所, 助手 (80128165)
Project Period (FY) 1994 – 1995
KeywordsPika / Ochotna / Thermal insulation / Thermal tolerance / hibernator / Telemetry / Body temperature / Skin hair
Research Abstract

(1) A Field Study of Telemetry-Recording of the Body Temperature in Wild Mongolian Pika
The pika inhabiting in cold zone or in high mountains is thought to be adapted to cold as well as high-altitude environment. We have reported pika's high body temperature (39.6゚C), high metabolism and poor heat loss ability such as poor lack of thermal salivation. In this study, we measured the body temperature of wild pikas (Ochotona daurica) with a telemetry device in their natural borrows in Mongolia. Two pikas captured at Under Dov were implanted with transmitters in the abdominal cavity under anesthesia, and were returned to the own habitat. The mean body temperatures of the pakas were 39.65゚C and and 39.96゚C,though the data were limited to a short period of less than one day. The present results in wild pikas support pika's high body temperature in our previous studies.
(2) Anatomical observations and thermal tolerance in pika (Ochotona curzoniae)
The heat insulations of chest and abdomen skin were inferior to back and waist. For pikas lying on their belly is a behavioral heat loss response. The high altitude adaptation of Pika in cold environment is due to heat conservation and heat production to be different from cold tolerance in hypothermia like as hibernator.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 小坂光男: "ナキウサギ(pika)の弱熱耐性" 学術月報. 47(4). 89- (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sakai,A.: "Physiological characteristics of Pika Ochotona for adaptation to high-altitude" Jounal of Growth. 33. 103-106 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小坂光男: "発汗-発汗の中枢機序と汗腺の神経支配-新しい観点からみた器官" 生体の科学. 45(4). 371-380 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsuchiya,K.: "Vasoconstriction induced by β-adrenerigic antagonist in the tail of chronic spinal rats" Tropical Medicine. 37(4). 175-183 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Matsumoto,T.: "A field study of telemetry-recording of the body temperature in wild Mongolian Pikas" Tropical Medicine. 37(3). 93-98 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kosaka,M.: "A new approach to analysis of human sweating" Experientia. 52(2). 131-135 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kosaka,M.: "In Integrative and cellula spects of autonomic function: Temperature and osmoregulation" Ed. by Pleschka, R.Gersberger John Libbey Eurotext Paris, 554 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kosaka,M.: "Body Temperature and Metabolism" Ed. by T.Nagasaka and A.S.Milton IPEC(International Press Editing Centre Incorporation)Tokyo, 234 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kosaka, M.: "Weak heat tolerance of Pika (Ochotona)." Gakujutsu Peppo. 47(4). 89 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sakai, A: "Physiological characteristics of Pika Ochotona for adaptation to high-altitude" Jounal of Growth. 33. 103-106 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kosaka, M.: "Sweat gland-Central and pheripheral mechanism of thermal sweating-" Seitai no Kagaku. 45(4). 371-380 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsuchiya, K.: "Vasoconstriction induced by beta-adrenergic antagonist in the tail of chronic spinal rats." Tropical Medicine. 37(4). 175-183 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Matsumoto, T.: "A field study of telemetry-recording of the body temperature in wild Mongolian Pikas." Tropical Medicine. 37(3). 93-98 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kosaka, M.: "A new approach to analysis of human sweating." Exoerientia. 52(2). 131-135 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kosaka, M.: In Integrative and cellula spects of autonomic function : Temperture and osmoregulation. Ed.by K.Pleschka, R.Gersberger John Libbey Eurotext Paris, 554 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kosaka, M.: Body Temperature and Metabolism. Ed.by T.Nagasaka and A.S.Milton IPEC (International Press Editing Center Incorporation) Tokyo, 234 (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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