赤腹松鼠能量代谢和营养需要的初步研究

在饲养条件下,赤腹松鼠(Callosciurus erythraeus)每天摄入干物质为7.06—9.91克/只,摄入能最为525.4—562.2千焦耳/千克~0.75每天每只摄入蛋白质:1.26—2.00克,脂肪0.69—2.79克。松鼠对能量、干物质、蛋白质和脂肪的消化率分别为85.7％—89.3％;84.7％—87.0％;75.9％—82.7％和79.1％—94.0％。赤腹松鼠喜食含脂量高的食物,对脂肪的消化能力高于蛋白质。营造种子含脂量高的多种树种混交林,提供松鼠足够的食物,是防止松鼠危害的有效途径。

A PRELIMINARY STUDY ON ENERGY METABOLISM AND NUTRITION REQUIREMENT OF RED-BELLIED TREE SQUIRREL (Callosciurus erythraeus)

Daily food consumption, digestibility of dry matter, energy, protein and fat were compared among the diets of five kinds of rations. The daily intake of food by adult squirrels varied 7.60-9.91g depend on different rations. The protein intake and fat intake were 1.26-2.00g/ind. day and 0.69-2.79g/ind. day, respectively. Digestibility of dry matter, energy, protein and fat were 84.7%-87.0%, 85.7% -89.3%, 75.9%-82.7% and 79.1%-94.0%, respectively. The red-bellied tree squirrels selected the higher fat food and digested a higher percentage of fat than protein in diets. Regression analysis revealed that the relationships between "digestibility of energy and energy density of food, between digestibility of protein and protein content of food, and between digestibility of protein and protein and protein content of food, and between digestibility of fat and fat content of food were linear. It is suggested that planting trees which produce a fat fruits in the forest was effective measure of squirrel pest control.