论文部分内容阅读
为探索集约化饲养泥鳅的途径，在实验室条件下研究了泥鳅对光照、底物及水深的选择性。结果表明：泥鳅具有明显的趋暗避光习性，在明亮、黑暗两种处理区中的自然分布百分比分别为６．６７％和９３．３３％；泥鳅对底物有很强的依赖性，在泥土、兰色纤维丝、无色纤维丝、碎网片、沙砾、竹筒、水草和空白共８种底物中的分布，前３种彼此接近且远高于后５种，从便于水质调控和操作出发，可选用纤维丝替代泥土；泥鳅在溶氧充足条件下栖息于水深３０ｃｍ处相对较多，养鳅池水深以３０～４５ｃｍ为适宜。
In order to explore the ways to intensively feed loach, the selectivity of loach to light, substrate and water depth was studied under laboratory conditions. The results showed that: loach has a clear dark habit of darkening, the percentage of natural distribution in bright and dark areas are 6.67% and 93.33% respectively; loach has a strong dependence on the substrate, Soil, blue fiber, colorless fiber, broken mesh, gravel, bamboo, aquatic plants and the blank space distribution of a total of eight kinds of substrates, the first three close to each other and much higher than the latter 5, from the water quality control and Operation starting, the alternative fiber soil instead of soil; loach dissolved oxygen sufficient habitat at a depth of 30cm at a relatively more, raising loach pond water depth of 30 ~ 45cm as appropriate.