大凡养殖红蚓大平二号的钓友们可能已经发现,种蚓原本全身鲜红,尾部呈淡黄如油菜花色,掐断后流出的淡黄色浆液发出一种奇特的气味——这或许就是它诱鱼吞食的效力极强的一个因素;但过了个三五年,常见一些蚯蚓颜色不如当初鲜艳,有的乌红,有的灰白,有的尾部已不见淡黄色;使用这样的蚯蚓上钩,上鱼率明显降低。我们姑且把这叫做红蚓的“退化”或“变异”。 怎样防止这种“退化”或 Fish farmers who breed earthworm Daping 2 may have discovered that the earthworms were originally red in body and yellow in the tail, such as the rape color. The light yellow slurry from the cut off gave off a peculiar smell - perhaps it was lure Swallowed a very powerful factor; but after a period of three to five years, some common earthworm color than the original bright, and some red, some gray, and some have not seen pale yellow tail; the use of such earthworm hook, the fish The rate is significantly lower. Let us call this “degradation” or “mutation” of earthworms tentatively. How to prevent this “degradation” or