台湾泥鳅仔鱼摄食节律及日摄食量  

Feeding Rhythm and Daily Feeding Amount of Larval Taiwan Loach

作　　者：张运邦 王永明[1] 蒲宗旺 刘天凤[1] 唐瑞[1] 周家辉[1] 岳兴建[1] 

机构地区：[1]内江师范学院生命科学学院//长江上游鱼类资源保护与利用四川省重点室,四川内江641199

出　　处：《内江师范学院学报》2017年第8期77-81,共5页Journal of Neijiang Normal University

基　　金：内江师范学院大学生创新创业项目(X201502);内江师范学院大学生科研项目(15NSD-111)

摘　　要：测定了台湾泥鳅15日龄仔鱼在自然光照、持续光照、黑暗条件下的昼夜摄食节律、日摄食量.结果显示:自然光照、持续光照下,15日龄的台湾泥鳅仔鱼在9:00-18:00有明显的摄食高峰;持续黑暗组在9:00-21:00摄食强度为自然光照组同期强度的48.6%.持续光照下,在9:00-18:00的摄食强度与自然光照条件下无明显差异,但在6:00和21:00摄食强度较自然光照下强;持续光照下日摄食量高于自然光照下10.66%;持续黑暗条件下日摄食量为自然光照的53.62%.台湾泥鳅15日龄仔鱼属于白天摄食类型,依靠视觉、感觉器官摄食,其摄食强度受光照影响较大.The diurnal feeding rhythm and the daily feeding amount were measured for the 15-day old larval Taiwan loach（Paramisgurnus sp.）（which could be local population or genetic improvement group of Paramisgurnus dabryanus）in natural light,continuous light and dark condition respectively.The results of feeding rhythm and daily feeding amount of 15-day larvae under natural illumination,successive illumination,and successive darkness showed that：all the tested larvae were found to have a typical daytime feeding rhythm,and fed actively during 9：00-18：00under natural illumination,successive illumination.The feeding intensity under successive dark was only 48.6% of the feeding amount under natural illumination.There was no significant difference in terms of the feeding intensity during 9：00-18：00under natural illumination and successive illumination.The feeding intensity increased in continuous light group was higher than that of the control group at 6：00a.m.and21：00p.m.In the continuous light group,the daily feeding amount increased by 10.66%compared with that of control group.Under successive dark,the daily feeding amount decreased to 53.62% of the amount found in control group.The feeding rhythm of the 15-day Taiwan loach is of a daytime type dependant on visual and sensory organs and their feeding intensity is strongly affected by the illumination.

关 键 词：台湾泥鳅 仔鱼 摄食节律 日摄食量 

分 类 号：S962.2[农业科学—水产养殖]