高糖高脂食物条件下高山姬鼠体重及消化道的生理变化  

Physiological Changes in Body Mass and Digestive Tract of Apodemus chevrieri Under High‑Sugar and High‑Fat Food Acclimation

作　　者：杨成瑶 张娟 朱万龙[1] YANG Chengyao;ZHANG Juan;ZHU Wanlong(Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals‐Plants in Southwest Mountain Ecosystem of Yunnan Province Higher Institutes College,School of Life Sciences,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学生命科学学院,云南省高校西南山地生态系统动植物生态适应进化及保护重点实验室,昆明650500

出　　处：《四川动物》2025年第2期146-154,共9页Sichuan Journal of Zoology

基　　金：国家自然科学基金项目(32160254);云南省基础研究专项--重点项目(202401AS070039);兴滇英才支持计划青年人才项目(YNWR-QNRC-2019-047)。

摘　　要：为探讨横断山区高山姬鼠Apodemus chevrieri在高糖高脂条件下体重和消化道组成等生理变化,进一步确定高质量食物对高山姬鼠生理调节的影响,将高山姬鼠随机分为2组:高糖高脂组(实验组)和标准饲料组(对照组),在(25±1)℃、12L∶12D条件下驯化28 d,测定体重、整体代谢率和单位基础代谢率、器官重量,以及消化道重量及形态。结果表明:驯化28 d后,实验组的体重和大肠重极显著高于对照组,胃重和整体基础代谢率显著高于对照组。说明在高糖高脂食物条件下,高山姬鼠会通过增加体重和消化道重量调节能量稳态,反映了其在高质量食物条件下的生理适应策略,暗示高山姬鼠在季节性食物变化过程中可以通过改变体重和各消化道器官的重量来增强其对横断山地区食物资源波动性的环境特征的适应。To investigate the physiological changes of body mass and digestive tract of Apodemus chevrieri in the Hengduan Mountains under high-sugar and high-fat foods,and to determine the effects of high quality foods on the physiological regulation of A.chevrieri.In study study,A.chevrieri were randomly divided into a high-sugar and high-fat group(experimental group)and a standard food group(control group).All the A.chevrieri were acclimated for 28 d under the conditions of room temperature of(25±1)℃and photoperiod of 12L∶12D,followed by the measurement of body mass,overall basal metabolic rate(BMR)and unit BMR,organ weight,digestive tract weight and morphological changes.The results showed that after 28 d of domestication,the mean body mass and the large intestine weight of the experimental group were extremely significant higher than those of the control group.The stomach weight and the overall BMR were significantly higher than those of the control group.These results indicated that under high-sugar and high-fat food conditions,A.chevrieri maintained energy balance by increasing body mass and digestive tract weight.This study suggests that A.chevrieri can adapt to the environment with food resource fluctuations like in the Hengduan Mountains region by changing their body mass and various digestive organs.

关 键 词：高山姬鼠 高质量食物 体重调节 能量代谢 消化道形态 

分 类 号：Q958.12[生物学—动物学] Q959.8