类胡萝卜素(Carotenoid)是广泛存在于自然界中的各种动植物及微生物体中的一类由异戊二烯残基组成的共轭双键长链类萜化合物。主要存在于甲壳动物和昆虫的外骨骼、禽类的羽毛、蛋黄和家畜的奶制品中,在鱼类主要贮藏在皮肤、鱼鳞、肌肉和器官中。大量试验表明,类胡萝卜素在改善动物体色和肉质,提高水产动物的饵料转化率,促进生长,提高水产动物的繁殖力和卵的受精率等方面有重大的作用。本文主要就类胡萝卜素对鱼类功能影响 Carotenoid is a kind of conjugate double bond long chain terpene compound composed of isoprene residues in various kinds of animals, plants and microorganisms widely found in nature. Mainly found in crustacean and insect exoskeletons, bird feathers, egg yolk and livestock dairy products, the fish are mainly stored in the skin, scales, muscles and organs. A large number of experiments show that carotenoids play a significant role in improving the body color and meat quality of animals, improving the feed conversion rate of aquatic animals, promoting the growth, raising the fertility of aquatic animals and the fertilization rate of eggs. This article mainly on the carotenoids on the function of fish