Dierenfeld E S, Seyjagat J
Department of Nutrition, Wildlife Conservation Society, Bronx, New York 10460-1099, USA.
J Zoo Wildl Med. 2000 Sep;31(3):315-21. doi: 10.1638/1042-7260(2000)031[0315:PFSVAM]2.0.CO;2.
Circulating plasma fat-soluble vitamin and mineral concentrations were compared in captive females of three species for fruit bats (Pteropus vampyrus, Pteropus hypomelanus, and Pteropus pumilus) fed the same diet. Daily total food intake averaged 28% of body weight on an as-fed basis or 7% on a dry matter basis. Dietary leftovers contained higher concentrations of phosphorus, magnesium, and zinc than the diet offered, suggesting some nutrient selectivity. Additionally, fecal mineral concentrations were two- to threefold higher than dietary concentrations of corresponding nutrients. Plasma concentrations of vitamin A (0.02-0.05 microg retinol/ml), vitamin D (1.50 ng 25-OH D3/ml; 93-108 pg 1,25 diOH D3/ml), and vitamin E (0.49-1.05 microg alpha-tocopherol/ml) were lower than in other herbivorous mammals, whereas plasma mineral concentrations were within normal mammalian ranges. These data may help assess the nutritional status of fruit bats.
对三种果蝠（马来大狐蝠、小黑狐蝠和短吻果蝠）圈养雌性个体的循环血浆中脂溶性维生素和矿物质浓度进行了比较，这些果蝠喂食相同的饮食。以喂食量计算，每日食物总摄入量平均为体重的28%，以干物质计算则为7%。饮食残渣中磷、镁和锌的浓度高于所提供的饮食，表明存在一定的营养选择性。此外，粪便中矿物质浓度比相应营养素的饮食浓度高两到三倍。血浆中维生素A（0.02 - 0.05微克视黄醇/毫升）、维生素D（1.50纳克25 - 羟基D3/毫升；93 - 108皮克1,25 - 二羟基D3/毫升）和维生素E（0.49 - 1.05微克α-生育酚/毫升）的浓度低于其他草食性哺乳动物，而血浆矿物质浓度在正常哺乳动物范围内。这些数据可能有助于评估果蝠的营养状况。
