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黄尾密鲴属鲤科,鲴亚科的一种中小型鱼类。该鱼适应性和抗病力强,生长速度快,其肉厚、质实,味道鲜美,营养价值高。黄尾密鲴在江河、湖泊、水库等大水面中可以自然繁殖,但近年来其野生资源遭到严重破坏,导致市场供不应求,价格上升。目前,人工养殖黄尾密鲴发展较快,但技术不够成熟,致使产量不高,商品率低,经济效益不显著。现将黄尾密鲴人工养殖高产高效技术介绍如下。1 搞好人工繁殖1.1 亲鱼选择黄尾密鲴2冬龄即达性成熟,一般体重在350～450克,可于每年的捕捞季节在江河湖泊内捕获繁殖用亲鱼。黄尾密鲴的雌雄在性成熟期极易区分,雄鱼头部、鳃盖、尾柄、胸鳍等处“追星”较多,抚摸有粗糙感,轻压腹部有浓稠的乳白色精液流出,个体较小。雌鱼腹部凸出,卵巢的轮廓明显而柔软,无“追星”出现。
Small yellow carp Cyprinidae, a sub-family of small and medium-sized fish. The fish adaptability and disease resistance, fast growth, its fleshy, real, delicious, high nutritional value. Yellow-tailed Fagaceae can naturally breed in large rivers such as rivers, lakes and reservoirs, but its wild resources have been severely damaged in recent years, causing the market to surpass demand and rising prices. At present, the artificial cultivation of yellow-tailed Fagaceae is developing rapidly, but the technology is not mature enough, resulting in low yield, low commodity rate and no significant economic benefit. Yellow Tailings now artificial breeding high yield and efficient technology are as follows. 1 do a good job of artificial breeding 1.1 broodstock choose yellow tail 鲴 2 winter age that sexual maturity, the general weight of 350 to 450 grams, in the annual fishing season in rivers and lakes capture broodstock broodstock. The male and female of the yellow-tailed Miriam easily distinguish in the sexual maturity, the head, operculum, caudal peduncle, pectoral fins and other places, “chasing stars” more, stroking a sense of roughness, gently pressing the abdomen thick milky semen outflow, Individual smaller. Female abdomen bulge, the outline of the ovary obvious and soft, no “chasing stars” appear.