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采用解剖观察、组织切片及人工催情等方法,研究芙蓉鲤鲫(Cyprinus capiofurong.♀×Carassius auratus red var.♂)的性腺发育及繁殖性能。结果显示:解剖观察,芙蓉鲤鲫性腺发育异常的个体占83.64%,性腺外观基本正常的个体占16.36%。组织学观察,芙蓉鲤鲫性腺可分三类:两性嵌合体占21.13%,其中以精巢为主的16.90%,以卵巢为主的4.23%,它们性腺发育迟缓,在繁殖季节成熟系数也没有明显变化,性腺多为一侧发育或两侧不对称,两种性腺细胞均不能成熟;雌性个体占40.84%,在生殖季节卵巢可发育到第IV时相,但未见其细胞核发生偏移;雄性个体,占38.03%,在生殖季节只能发育到精子细胞阶段,不能产生成熟的精子。经人工催产,芙蓉鲤鲫少部分个体有发情产卵行为但不能正常受精。结果表明芙蓉鲤鲫为两性败育类型。
The gonadal development and reproductive performance of Cyprinus capiofurong.♀ × Carassius auratus red var. ♂ were studied by means of anatomical observation, tissue section and artificial aphrodisiac. The results showed that there were 83.64% of gonadal development abnormalities in Furong carp and 16.36% of individuals with normal gonadal appearance in anatomical observation. Histological observation, Furong carp gonads can be divided into three categories: gender chimera accounted for 21.13%, of which 16.90% of the main testis, 4.23% of ovarian mainly gonadal development retardation, the reproductive season maturation coefficient was not significantly Gonads were mostly unilateral or asymmetric on both sides, both gonadal cells were not mature; female individuals accounted for 40.84%, in the reproductive season the ovary can develop to the first phase, but no nuclear shift; male Individuals, accounting for 38.03%, can only develop sperm cell stage in the reproductive season, can not produce mature sperm. After artificial oxytocia, Furong carp crucian carp a small number of individuals have estrus spawning behavior but not normal fertilization. The results show that the lotus carp crucian carp is a bisexual abortion type.