家鱼在江河中的生殖规律和性行为已有详尽的考察与描绘。人工池塘培育的家鱼亲鱼,性腺虽能够正常发育,但不能自行产卵,只有施用外源性激素人工催产才能繁殖后代。因此,往往被认为亲鱼的发情追逐、交配产卵等性行为是外源性激素直接作用的结果。笔者在多年的家鱼人工繁殖工作中,所观察到的情况并非如此,于1982年5月下旬进行了试验观察。 Fish in the river reproductive laws and sexual behavior has been exhaustive study and depiction. Artificial pond broodstock fish broodstock, although the normal development of gonads, but can not lay their own eggs, only the use of exogenous hormones artificially induced progeny to breed. Therefore, it is often considered that the broodstock’s estrus chase, mating and spawning are the result of the direct effect of exogenous hormones. The author in years of artificial reproduction of fish in the work, the observed situation is not the case, in May 1982 conducted a pilot study.