Effect of Ambient Temperature on Body Temperature and Rest Metabolic Rate in Apodemus chevrieri During Postnatal Development 

Abstract

In order to investigate the ability of constant temperature and thermoregulation in Apodemus chevrieri, body temperature and rest metabolic rate (RMR) were measured during postnatal development (1~42 day) when the A. chevrieri exposed different ambient temperature. The result showed that: body temperature and RMR of pups in A. chevrieri increased according to the increase of ambient temperature during 1 day to 7 day, showed character of poikilotherms; body temperature of pups were lower in low temperature(5oC and 10oC), relatively and RMR significant increased when day age is 14 day, it indicated that the pups showed a certain degree of thermoregulation in this phase. Its thermoregulation ability developed quickly during 7 day to 14 day. RMR of pups was extreme significantly higher in low temperature than that in other temperature when day age was 21 day, it showed that the pups had some thermoregulation to low temperature stimulation. The RMR of pups was showed increasing trend in high temperature(35oC) when 28 day; when day age was 35 day and 42 day, the thermal neutral zone were 22.5 to 30oC and approaching its adult level. All of these results indicated that pups of A. chevrieri in the different growing period had different thermogenesis and energy allocation to maintain stable to body temperature, thermogenesis was weaker in the early phase of postnatal development, most of energy is used to its growth. After pups were weaned, the ability of constant temperature and thermoregulation developed quickly to adjust variations of environment during postnatal development. 

Authors and Affiliations

Wan-long Zhu, Shu-ran Sun, Fang Ge, Cong-nan Sun, Lin Zhang, Zheng-kun Wang

Keywords

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  • EP ID EP136748
  • DOI -
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How To Cite

Wan-long Zhu, Shu-ran Sun, Fang Ge, Cong-nan Sun, Lin Zhang, Zheng-kun Wang (2014). Effect of Ambient Temperature on Body Temperature and Rest Metabolic Rate in Apodemus chevrieri During Postnatal Development . Журнал стресс-физиологии и биохимии, 10(2), 94-101. https://europub.co.uk/articles/-A-136748