不同生境福寿螺(Pomacea canaliculata)的营养成分及其利用价值

Nutritional components and utilization values of golden apple snails (Pomacea canaliculata) in different habitats

为比较不同生境和不同肉色福寿螺的营养成分组成差异以探讨其在综合防治中的潜在利用价值,分析了鱼塘、沟渠和水田3种生境福寿螺以及黑白肉色福寿螺的一般营养成分和氨基酸组成。结果表明:鱼塘福寿螺的水分和粗脂肪含量最高,沟渠福寿螺的灰分含量最高,水田福寿螺的水分、粗脂肪和粗蛋白含量最低,沟渠和鱼塘福寿螺的粗蛋白含量都高于13%,鱼塘福寿螺的总氨基酸、必需氨基酸、呈味氨基酸含量和必须氨基酸指数均最高,但必需氨基酸的比例最低;水田福寿螺的必需氨基酸和呈味氨基酸含量高于沟渠福寿螺,必需氨基酸指数依次是鱼塘>水田>沟渠,白肉福寿螺的总体营养价值较黑肉福寿螺高,福寿螺的总体必需氨基酸组成与鱼粉(CP53.5%)较为接近;在利用中应充分考虑不同生境和不同肉色福寿螺营养组成存在的差异。

This paper analyzed the nutritional components and amino acids composition of black and white flesh-colored golden apple snails （Pomacea canaliculata） collected from different habitats （fish pond, ditch, and paddy field）, aimed to compare the differences in the nutritional components of these snails and explore the potential utilization values of the snails during the process of integrated control. The snails in fish pond had the highest contents of water and crude fat, those in ditch had the highest ash content, while those in paddy field had the lowest contents of water, crude fat, and crude protein. The crude protein content of the snails in ditch and pond was higher than 13%, and the snails in pond had the highest contents of total amino acids, essential amino acids, and flavor amino acids and the highest index of essential amino acids, but the proportion of essential amino acids was the lowest. The snails in paddy field had higher contents of essential amino acids and flavor amino acids than the snails in ditch, and the index of the essential amino acids of the snails in different habitats was in the order of fish pond 〉 paddy field 〉 ditch. Overall, white flesh snails had higher nutritional values than black flesh ones, and the nutritional composition of the snails essential amino acids was similar to that of fish meal （CP 53.5%）. It was suggested that in the utilization of golden apple snails, their flesh color and origin should be fully considered.