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选取故县水库性成熟的西伯利亚鲟鱼作为亲鱼,采用人工技术对4尾雄性及6尾雌性西伯利亚鲟进行人工繁殖。催产前将亲鱼雌雄分开暂养,并且将水温逐步提升到15~16℃。经过人工催产,4尾雄鱼通过人工挤压腹部顺利排精,6尾雌鱼通过微创手术获得成熟卵子,再通过人工授精、脱粘、孵化,共获得受精卵61.5万粒,鲟鱼稚鱼58.2万尾,受精率89.98%,孵化率94.5%。
The matured Siberian sturgeon in Guixian Reservoir was selected as the broodstock to artificially propagate four male and six female Siberian sturgeon. Before the childbirth, the male and female broodstock should be kept separately and the water temperature should be raised gradually to 15-16 ℃. After artificial ovulation, 4 male males successfully squashed the abdomen by artificial squeezing, and 6 females obtained the mature egg by minimally invasive surgery. Then, 61500 fertilized eggs and sturgeon were obtained through artificial insemination, debonding and hatching 582,000 fish, fertilization rate of 89.98%, hatching rate of 94.5%.