对青海钩虾的营养价值进行了初步的研究。首先分析三种不同品级的青海钩虾，一般营养成分及氨基酸含量，并同两种鱼粉比较；第二，养鸡试验的结果表明，钩虾组在平均增量和总增重量等方面都优于鱼粉；第三，真鲷Pagrosomusmajor（Temminck＆Schlegel）的实验是按照逐次降低钩虾的含量的方法，分为4组。Ⅰ．钩虾：鱼粉＝6：4，Ⅱ．钧虾：鱼粉＝4：6，Ⅲ．钩虾：鱼粉＝2：8，Ⅳ．钩虾：鱼粉＝0：10。实验结果显示在其鲷的成活率、体长平均增长率、增重率和饲料系数等方面，含钩虾组较无钩虾（Ⅳ）为佳，而Ⅱ组具有最好的促增重效果和最经济的特点。最后，根据上述分析和实验结果，作者认为青海钩虾是一种可以代替鱼粉的新蛋白源，值得开发利用和推广。

This paper presents the results of preliminary study on the nutritional value of Qinghai Gouxia (Gammarus suifunensis) belonging to the Amphypoda. It mainly includes three experiments as follows:1) The first experiment shows that the results of the analysis on the crude protein and crude fat as well as Amino acids contents of the two grades of fish meal,which are generally higher than those of the three grades of Qinghai Gouxia.2) In the test of feeding hens, the result shows that Gouxia group (A) is better than fish meal group(B) in total and average of gain in weight.3) The dietary test of Pagrosomus major (Temminck & Schlegel) was designed by means of the gradient method. The ratios of gouxia:fish meal of the four groups were 6: 4 (Ⅰ), 4: 6 (Ⅱ), 2: 8 (Ⅲ) and 0: 10 (Ⅳ) respectively. The results show that the first three groups (Ⅰ,Ⅱ, Ⅲ) with gouxia were much better than group Ⅳ (no gouxia added) in the survival rate, average gain in length,real precentage of weight gain and feed conversion ratio. Among the four groups, group Ⅱ has the strongest effect on promoting growth and is the most economic one.In general, the authors consider that fish meal can partly be replaced by Qinghai gouxia in animal feeds. As a new protein source, there is a bright future in its development, utilization and spread.