摘要
[Objective] This study was to determine the effect of green biological feeds that little affected natural environment on fish attraction activities with the aim to explore new research direction for the recreational fishing area. [Method] The ef- fective constituents of live natural foods, including chironomid larvae, earthworm, mussels, winkles, were separated by using soaking solution extraction and centrifu- gal extraction. The extracted live foods were used to attract the carp, young cru- cian, and fishes of 100-150 days old and over 1 year old, respectively. The feed nutrition formulation of the added food attractants was designed and applied to feed- ing in the aquaculture farm. The test results were practised in bait study to conduct field fishing test and collect the data. [Results] Compared with the control group, feeding with live foods had significantly improved the growth rates of fishes at dif- ferent ages, and greatly reduced food coefficients. [Conclusion] The feeds made from live food addictives had excellent attraction ability, which not only reduced the negative effects on natural environment but also made the aquaculture mode more organic and greener.
[目的]研究对自然环境影响较少的绿色生物饲料对鱼类诱食效果的影响,为休闲渔业领域探索新的研究方向。[方法]对鱼类喜食的天然生物活饵,包括摇蚊幼虫、蚯蚓、贻贝、田螺通过溶液浸泡萃取法、离心提取法进行有效成分提取。应用这些生物活饵的提取物分别对鲤鱼、鲫鱼的稚鱼、100~150日龄和一龄以上的鱼做诱鱼试验,研究设计出添加诱食物质的饲料营养配方,并初步应用于生产加工,在养殖场进行苗种饲喂中试。将试验结果应用于钓饵研究,进行野外垂钓试验,并进行数据采集。[结果]用生物活饵制作的饲料,和试验对照组相比明显提高了不同鱼龄鱼的生长速度,大幅降低了饵料系数。[结论]用生物活饵添加剂制作而成的饲料能获得出色的诱食效果,不仅降低了对自然环境的负面影响而且还使水产养殖模式更有机、更绿色。
