俄罗斯专家研究发现 ,从海洋甲壳类动物的甲壳中提取的生物聚合物几丁聚糖可用作鱼饲料添加剂。鱼饲料添加了几丁聚糖后 ,颗粒会变得结实 ,可有效防止搬运引起的破裂。他们利用几丁聚糖、蛋氨酸、谷氨酸和油粑加工成一种特殊的混合物 ,并均匀地搅拌在饲料中。试验发现 ,这种饲 Russian experts found that biopolymer chitosan extracted from the crustacean shell of the marine crustacean can be used as a fish feed additive. After the chitosan is added to the fish feed, the particles become strong and effectively prevent handling-induced rupture. They use chitosan, methionine, glutamic acid, and razor clam to make a special mixture and stir them evenly in the feed. Test found that this feed