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根据萍乡肉红鲫生物学特点,本文系统地研究出了一整套人工繁殖技术:即亲鱼培育、亲鱼雌雄鉴别、亲鱼选择、人工鱼巢、人工催产、人工孵化和苗种培育技术。在自然条件下,当水温达到17℃以上(清明前后)即能自行产卵。该鱼对市售的渔用催产激素没有明显的选择,都能使其发情产卵,LRH-A的注射标准为10μg/kg,HCG为1000IU/kg。产粘性端黄卵。催产率为96%,受精率为85%,鱼苗孵化率为87%。在水温18-20℃时孵化时间为96h。萍乡肉红鲫苗种培育技术分为夏花培育和冬片培育阶段,其培育方法同其它鲫鱼苗种培育方法大同小异。
According to the biological characteristics of Pingxiang Carassius auratus grosvenorius, a set of artificial propagation techniques was systematically developed in this paper: broodstock breeding, male and female broodstock selection, broodstock selection, artificial fish nests, artificial hatching, artificial hatching and seed breeding techniques. Under natural conditions, when the water temperature reaches above 17 ℃ (before and after Ching Ming) that can self-spawning. The fish on the market for the fishery with no obvious choice of oxytocin, can make it oestrous spawning, LRH-A injection standards for 10μg / kg, HCG 1000IU / kg. Sticky end yellow egg. The oxytocin rate was 96%, the fertilization rate was 85%, and the fry hatching rate was 87%. Incubation time at water temperature 18-20 ℃ 96h. Pingxiang red crucian carp seed cultivation techniques are divided into summer flower cultivation and winter cultivation stage, its cultivation methods with other crucian carp seed cultivation methods are similar.