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申请号:201910921418.9 公开号:CN110876343A 主分类号:A01K61/10
摘要:【中文】本发明涉及鱼类人工繁殖技术领域,具体地说是一种提高长薄鳅人工繁殖效率的方法。具体步骤如下,首先对亲鱼进行精心筛选后暂养在聚氯乙烯网箱中,然后对亲鱼进行分类,并针对不同的发育程度,选择不同的催产针距时间和药物计量,有利于亲鱼的保护和卵母细胞的同步成熟,催产出的卵细胞中未成熟卵粒的比例从10%下降到3%,然后进行催产处理,使精卵混合均匀,最后对亲鱼进行护理,最大限度减少产卵亲鱼的受伤和产后亲鱼的死亡,保护了有限的长薄鳅资源,传统方法产后亲鱼的死亡率高达70%~100%,本技术条件下死亡率为10%。 【EN】The invention relates to the technical field of artificial fish breeding, in particular to a method for improving the artificial breeding efficiency of Leptobotia elongata. The method comprises the following specific steps of firstly carefully screening parent fishes, temporarily breeding the parent fishes in a polyvinyl chloride net cage, classifying the parent fishes, selecting different induced spawning needle pitch time and drug metering according to different development degrees, facilitating the protection of the parent fishes and the synchronous maturation of oocytes, reducing the proportion of immature oocytes in the induced spawning oocytes from 10% to 3%, then carrying out induced spawning treatment to uniformly mix sperms and eggs, and finally nursing the parent fishes, so that the injury of the spawning parent fishes and the death of the postpartum parent fishes are reduced to the maximum extent, limited loach resources are protected, the mortality rate of the postpartum parent fishes in the traditional method is 70% -100%, and the mortality rate under the technical condition is 10%.
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