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采用沙丁鱼肌肉(FF)、鹰爪虾肌肉(SF)、菲律宾蛤仔足肌(CF)、沙蚕(PW)和配合饲料(FD)5种饵料,设计了CF+PW、CF+FD、PW+FD、CF+FD+PW、FF+FD+PW+FD、FF+SF+CF+PW+FD共6种饵料搭配投喂模式,研究了不同饵料搭配对中国明对虾的生长和饵料转化效率的影响。中国明对虾摄食混合饵料后的生长都比除PW处理外的4种单种饵料投喂处理快,CF+PW处理的对虾在实验结束时的体重、增重率最大。混合投喂处理的饵料转化效率均高于除PW外的所有单种饵料投喂处理,所有混合投喂处理的实际饵料转化效率都比预测值高,并且除了PW+FD和CF+FD+PW两个处理的实际值与预测值差异不显著外,其它混合处理的饵料转化效率实际值都显著高于预测值。文中还对不同饵料搭配的优势对对虾饵料选择性的影响及产生这些优势的原因进行了探讨。
CF, PW, CF + FD and PW were designed by using 5 kinds of bait including sardine muscle (FF), claw shrimp muscle (SF), Philippine clams foot muscle (CF), silkworm (PW) and compound feed (FD) The results showed that there was no significant difference between the control group and the control group (P> 0.05). There were 6 kinds of food collocation feeding modes of + FD, CF + FD + PW, FF + FD + PW + FD, FF + SF + CF + PW + FD. Impact. The growth of M. prawn fed bait was faster than that of the other four treatments except PW, and the body weight and weight gain of CF + PW treated prawn were the highest at the end of the experiment. The feed conversion efficiencies for mixed-fed treatments were higher than for all single-feed treatments except PW, and the actual feed conversion efficiencies for all mixed-fed treatments were higher than predicted, and in addition to PW + FD and CF + FD + PW The difference between the actual value and the predicted value of the two treatments was not significant, and the other actual values of feed conversion efficiency of the mixed treatment were significantly higher than the predicted value. The article also discussed the advantages of different bait collocation on the selectivity of shrimp feed and the reasons for these advantages.