FOOD AND NUTRITIONAL CONDITION OF FREE RANGING JAPANESE MONKEYS ON KOSHIMA ISLET JAPAN DURING WINTER
FOOD AND NUTRITIONAL CONDITION OF FREE RANGING JAPANESE MONKEYS ON KOSHIMA ISLET JAPAN DURING WINTER
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DOI：
10.1007/bf02381158
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发表时间：
1982-01-01
期刊：
影响因子：
1.7
通讯作者：
IWAMOTO T
中科院分区：
文献类型：
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作者：
IWAMOTO T
选择一只带着婴儿的雌性作为研究对象，试图评估自由放养的日本猴在冬季的营养状况。每月（十月至三月）测量她的每日食物成分、干重摄入量和营养（蛋白质、脂质、碳水化合物、灰分和卡路里）摄入量。秋季饮食中约90%和8%分别由水果和无脊椎动物组成； 70% 的冬季饮食（2 月）由常绿树木的叶子组成。将该焦点女性的每日蛋白质摄入量与参考文献估计的需求水平进行比较，只有 10 月和 11 月代表满足该水平的月份。此外，冬季脂肪摄入量显着减少。这些结果与观察到的雌性体重减轻和其婴儿在冬季增加的进食活动非常吻合。母亲的这种季节性营养不良可能会影响婴儿死亡率等人口参数。
A female with infant was chosen as material for study in an attempt to assess the nutritional condition of free ranging Japanese monkeys during winter. Her daily food composition, dry weight intake and nutritional (protein, lipid, carbohydrate, ash and calorie) intake were measured monthly (Oct.-March). About 90% and 8% of the autumn diet consisted of fruits and invertebrate animals, respectively; 70% of the winter diet (Feb.) consisted of leaves of evergreen trees. Comparing the daily protein intake of this focal female with the requirement level estimated from references, only Oct. and Nov. represented months fulfilling this level. Also, there was a remarkable decrease in lipid intake towards winter. These results coincided well with the observed body weight loss in the female and the increasing feeding activity of her baby towards winter. Such seasonal malnutrition of the mother might affect population parameters such as the infant mortality.