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大鲵人工繁殖子一代雄鲵与野生雄鲵在体重均为3.25kg时,肥满度分别为0.6115和0.5483;在全长均为65cm时,肥满度分别为0.9103和0.7280,因此子代雄鲵比野生雄鲵略显肥短。进行二次催产率试验,野生雄鲵催产率为28.6%～37.5%,1998年子一代雄鲵催产率为75%～80.2%,1999年子一代雄鲵催产率为72.2%,子代比野生代催产率显著高(P<0.05)。在体重相同时,子代雄鲵精液量比野生雄鲵精液量多20%～40%,最大精液量一尾雄鲵可挤30～40mL,精子密度子代比原种稍高,最高密度为(5.52～8.3)×106ind/mL,精子体积占精液的8.0%～13.3%。pH值均为弱酸性或中性(6.4～7.1);精子大小为(170～210)μm×(3.8～4.5)μm。
When the body weight is 3.25kg, the male parthenocarpy and wild male parturition of the artificial breeding branch of Big Macrophyllidae are 0.6115 and 0.5483, respectively. When the total length is 65cm, the fatness degree is 0.9103 and 0.7280 respectively, Slightly fatter than wild male. The second oxytocin rate test showed that the yield of wild male chinense was 28.6% -37.5%. In 1998, the progeny rate of male chinense was 75% -80.2%. In 1999, the male generation of male chinense produced 72.2% Generation of oxytocin was significantly higher (P <0.05). When the body weight is the same, the progeny male spermatozoa volume is 20% ~ 40% more than that of the wild male spermatozoa. The maximum spermatozoa volume can be squeezed by 30 ~ 40mL, the sperm density progeny slightly higher than the original species, the highest density is (5.52 ~ 8.3) × 106ind / mL, sperm volume accounted for 8.0% to 13.3% of semen. pH values are weakly acidic or neutral (6.4 ~ 7.1); sperm size (170 ~ 210) μm × (3.8 ~ 4.5) μm.