摘要
食物限制对鼠类生理特征产生明显影响。限食条件下 ,鼠类的能量消耗下降 ,能量需求降低 ,糖类、蛋白质和脂肪等物质的代谢过程及相应的酶活性改变 ,细胞免疫功能降低 ,神经内分泌发生变化 ,性成熟延迟 ,动情周期改变 ,动情行为受到抑制 ,生殖力下降 ,仔代的发育受到影响 ,性比发生变化。现就该领域近年来的研究进展做一综述 。
Food plays an important role in population regulation, but its mechanisms and impacts are still poorly understood. This paper reviews recent progress about the effects of food restriction on physiological conditions of small rodents. There is a close relationship between nutritional status of rodents and the activities of the hypothalamic-pituitary-adrenal and gonadal axis. The consequences of food restriction include inhibiting growth and endocrine, delaying puberty onset, inducing abnormal estrous cycles, inhibiting ovulation and resistance to disease. Food restriction results in a reduction in body temperature and resting metabolic rate. Food restriction also affects sex ratio and growth of subsequent offspring. Various ways and periods of starvation can cause different changes in endocritic function. Of small rodent, food hypothesis is a remarkable hypothesis on population regulation. Studying nutritional ecology of rodents is helpful in understanding the dynamic mechanisms of their population.
出处
《兽类学报》
CAS
CSCD
北大核心
2003年第2期175-182,共8页
Acta Theriologica Sinica
基金
中国科学院重要创新方向资助项目 (KSCX2 -SW -10 3
KSCX2 -1-0 3)
