泥鳅繁殖和生长的研究  

STUDIES ON REPRODUCTION AND GROWTH OF LOACH

作　　者：雷逢玉[1] 王宾贤[1] 

机构地区：[1]湖南省水产研究所

出　　处：《水生生物学报》1990年第1期60-67,99-100,共8页Acta Hydrobiologica Sinica

摘　　要：泥鳅的性成熟年龄:雌体为1—2龄,雄体为1龄。其性腺发育和性细胞特征,与鲤科鱼类基本一致。泥鳅属分批产卵类型的鱼类。在天然水域中,4—10月生殖。在一定范围内,泥鳅的生殖力随体长、体重的增长而提高。体长增长以第1—2龄最快,体重年增重率以第2龄为最高。因此,泥鳅的人工养殖周期以两年为佳;收获个体规格宜在体长为11cm以上。The age at first maturity in the Loach (Misgurnus anguillicaudatus) is 1^+—2 years for females and 1 year for males. The characteristics of gonad development and reproductive cells of the Loach are almost the same as those of the Common carp. The loach can spawn several times a year. Spawning lasts from mid-April until early-October. Fecundity increases with increased body size. The loach has its maximum growth in length in the first and second years of its life, but the maximum growth in weight occurred in he second year. In intensive culture, the loach should be marketed at two years of age, when the length is over 11 cm.

关 键 词：泥鳅 繁殖 生长 

分 类 号：Q959.468[生物学—动物学]