肥须亚麻蝇和巨尾阿丽蝇的营养价值

Evaluation on the Maggots and Flies Nutrition of Parasarcophaga crassipalpis (Diptera: Sarcophagidae) and Aldrichina grahami (Diptera: Calliphoridae)

肥须亚麻蝇(PC)和巨尾阿丽蝇(AG)幼虫的干物质中蛋白质含量高于60%,成虫干物质中蛋白质含量高于70%.幼虫、成虫必需氨基酸总的含量[g·(100 g)-1蛋白质]在46～59之间,均高于FAO/WHO的标准模式35;幼虫、成虫必需氨基酸与氨基酸总量的比值均大于40%的标准模式.在必需氨基酸中,除缬氨酸、蛋氨酸+胱氨酸含量低于优质蛋白模式外,其余均高于标准模式.幼虫的脂肪含量为20%左右,成虫的脂肪含量不到10%,成虫、幼虫不饱和脂肪酸含量均达脂肪酸总量的70%以上.必需脂肪酸均为亚油酸,幼虫亚油酸含量高于40%,成虫亚油酸含量仅为17%左右.PC和AG幼虫中Fe、Zn的含量分别是Fe 684、664 μg·g-1,Zn 170.5、158.0 μg·g-1.幼虫Ca含量相当于优质大豆,分别为0.46%、0.48%;P含量高于一般奶粉,分别为0.57%、0.54%.PC、AG幼虫的Ca、P比值分别为0.81、0.89,均高于0.5的理想值.

In the dry substance of Parasarcophaga crassipalpis （PC） and Aldrichina grahami （ A G）, the protein contents were more than 60% in the maggots, and more than 70% in flies. The amount of essential amino acid [g· （100 g）^ -1 protein] was between 46 and 59, higher than 35, the standard content of FAO/WHO. The ratios of the essential to total amino acid were higher than standard mode 40% of FAO/WHO. Among essential amino acids, all of the contents were higher than standard mode except Valine and Methionine plus Cysteine. The grease contents were around 20% in maggots, and less than 10% in flies. The ratios of unsaturated fatty acid to total fatty acid were more than 70% no matter in maggots or in flies. Essential fatty acid was Linoleic Acid, its contents were more than 40% in maggots and around 17% in flies. In PC and AG maggots, the contents of ironand zinc were opulent, the results of iron were 684 and 664 μg·g^-1 and the zinc were 170.5 and 158.0μg·g^-1 respectively. The calcium contents were not more than perfect soybean, the amount were 0.46% and 0.48% respectively. The phosphorus contents were higher than normal milk powder, the amount were 0.57% and 0.54% . The ratios of calcium to phosphorus were 0.81 and 0.79 respectively, beth higher than ideal value 0.5.