本试验测定了蓝狐对6种动物性蛋白(鸡肉粉、秘鲁鱼粉、鸡肠羽粉、肉骨粉、羽毛粉和猪肉粉)来源日粮和5种植物性蛋白(玉米蛋白粉、膨化大豆、豆粕、膨化玉米和玉米胚芽粕)来源日粮的干物质和粗蛋白质的表观消化率，比较了不同性别蓝狐对同一蛋白质来源日粮的干物质和粗蛋白质表观消化率差异。选取健康成年蓝狐公、母各110只，公、母狐分别随机分成11组，每组10个重复，每个重复1只。每组试验日粮的粗蛋白质由单一的试验饲料原料提供。预试期7 d，正试期3 d。结果表明，在6种动物性蛋白来源日粮中，羽毛粉日粮干物质表观消化率最高，但与鸡肉粉和秘鲁鱼粉日粮差异不显著(P>0.05)；肉骨粉和猪肉粉日粮干物质表观消化率显著低于羽毛粉和鸡肉粉日粮(P<0.05)。鸡肉粉日粮粗蛋白质表观消化率最高，但与秘鲁鱼粉、鸡肠羽粉和羽毛粉日粮差异不显著(P>0.05)；猪肉粉和肉骨粉日粮粗蛋白质表观消化率显著低于鸡肉粉日粮(P<0.05)。在5种植物性蛋白来源日粮中，膨化大豆日粮干物质表观消化率最高，但与豆粕日粮差异不显著(P>0.05)；膨化玉米日粮的干物质表观消化率显著低于其他4种日粮(P<0.05)。豆粕日粮的粗蛋白质表观消化率最高，但与膨化大豆和玉米蛋白粉日粮差异不显著(P>0.05)；膨化玉米和玉米胚芽粕日粮的粗蛋白质表观消化率显著低于其他3种日粮(P<0.05)。不同性别蓝狐对同一日粮的干物质和粗蛋白质表观消化率均差异不显著(P>0.05)。由此得出，作为育成期蓝狐日粮的蛋白质来源，6种动物性蛋白原料中以鸡肉粉最佳，5种植物性蛋白原料中以豆粕最佳。不同性别蓝狐对同一日粮干物质和粗蛋白质表观消化率差异不显著。

The apparent digestibilities of dry matter and crude protein of different protein source diets in blue fox were detected including 6 animal protein sources (chicken powder, Peru fish meal, chicken feather powder, bone meat meal, feather meal and pork powder) and 5 plant protein sources (corn gluten meal, extrusion soybean, soybean meal, extrusion corn and corn germ meal). The differences of male and female for the same protein source diet were also compared. One hundred and ten adult male blue foxes and 110 adult female blue foxes were selected and randomly divided into 11 groups,respectively.Each group contained 10 replicates and each replicate contained 1 fox. The results showed as follows: in the 6 animal protein source diets, apparent digestibility of dry matter of feather meal diet was the highest, but there were no differences among feather meal diet, chicken powder diet and Peru fish meal (P>0.05); apparent digestibility of dry matter of bone meat meal diet and pork powder diet was significantly lower than that of feather meal diet and chicken powder diet (P<0.05). Apparent digestibility of crude protein of chicken powder diet was the highest, but there were no differences among chicken powder diet, Peru fish meal diet, and feather meal diet (P>0.05); apparent digestibility of crude protein of bone meat meal and pork powder diet was significantly lower than that of chicken powder diet (P<0.05). In the 5 plant protein source diets, apparent digestibility of dry matter of extrusion soybean diet was the lowest, but there were no differences between extrusion soybean diet and soybean meal diet (P>0.05); apparent digestibility of dry matter of extrusion corn diet was significantly lower than that of other 4 diets (P<0.05). Apparent digestibility of crude protein of soybean meal diet was the highest, but there were no differences among soybean meal diet, extrusion corn diet and corn gluten meal diet (P>0.05); apparent digestibility of crude protein of extrusion corn diet and corn germ meal diet was significantly lower than that of other 3 diets (P<0.05). There were no significant differences between male and female on apparent digestibility of dry matter and crude protein for the same diet (P>0.05). In conclusion, as finishing period blue fox diet, chicken powder was better than other animal protein ingredients, and soybean meal was better than other plant protein ingredients. There were no significant differences between male and female on apparent digestibility of dry matter and crude protein for the same diet.［Chinese Journal of Animal Nutrition, 2009，21(6):953-959］