以优质鱼粉、豆粕等原料制成蛋白质含量不同的6组饲料(粗蛋白含量分别为48.16%、45.64%、40.67%、35.68%、30.80%、25.96%),喂养台湾东风螺47 d,以投喂鲜杂鱼组作为对照,分别于15、27、37、47 d测定螺高、螺宽、螺体重等生长指标,计算不同处理组在不同时间段(27、37、47 d)的饲料系数和蛋白质效率,试验结束后测定东风螺螺肉的体组成和氨基酸含量,研究结果表明:投喂颗粒饲料比投喂鲜杂鱼的饲料系数显著高;而当颗粒饲料中蛋白质含量变化(25%~48%)时,对东风螺生长性能并无显著影响。但随着饲料蛋白含量的增加,东风螺对饲料的利用率在一定程度上有所提高。当饲料中粗蛋白含量低于25%时,47 d时其饲料系数2.3,显著高于其他饲料组;蛋白质效率1.74显著低于蛋白含量48.16%饲料组。从东风螺生长性能和饲料利用分析,颗粒饲料中蛋白质含量不应低于25%。所有组东风螺螺肉的粗蛋白、脂肪,总氨基酸组成均无显著差异,但是一些中性氨基酸(如亮氨酸、异亮氨酸和丙氨酸)和精氨酸随着饲料蛋白含量的降低而呈现出降低趋势,部分组产生了显著差异。投喂颗粒饲料的东方螺生长不如投喂鲜杂鱼组。 Six feedstuffs with different protein contents (crude protein content were 48.16%, 45.64%, 40.67%, 35.68%, 30.80%, 25.96%, respectively) were made from high-quality fishmeal and soybean meal, Fed with fresh trash fish as control, the growth indexes such as snail height, snail width and snail body weight were measured at 15, 27, 37 and 47 days respectively, and the feed conversion coefficient of different treatment groups at different times (27, 37 and 47 days) And the protein efficiency. The body composition and amino acid content of B. auratus were determined after the experiment. The results showed that the feed ration of feeding pellet feed was significantly higher than that of feeding fresh trash fish. When the content of protein in pellet feed changed by 25% ~ 48%), there is no significant effect on the growth performance of B. orientalis. However, with the increase of feed protein content, the utilization of feed by Dongfeng snails increased to a certain extent. When the content of crude protein in feed was less than 25%, the feed coefficient at 47 d was significantly higher than that of other feed groups at 47 d. The protein efficiency of 1.74 was significantly lower than that of feed with 48.16% protein content. From Dongfeng snail growth performance and feed utilization analysis, the pellet feed protein content should not be less than 25%. There was no significant difference in the crude protein, fat, and total amino acid composition of all the groups, but some neutral amino acids (such as leucine, isoleucine and alanine) and arginine Decreased and showed a downward trend, some groups have a significant difference. Feeding the pellets of Oriental spiral growth than feeding fresh fish group.