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我县具有近20年的虹鳟养殖历史。在这20年中养殖技术不断提高,养殖规模不断扩大。我县可年产优质发眼卵2000万粒,是我省最大的优质鱼卵供应基地。关于虹鳟人工繁殖技术我有如下几点体会。1 虹鳟鱼成熟度的鉴别 虹鳟鱼成熟度鉴别主要是指雌鱼成熟度的鉴别。雄鱼一般以能挤出精液,并且较浓为宜。雌鱼成熟度的鉴别是指雌鱼是否性成熟
My county has nearly 20 years of rainbow trout breeding history. In these 20 years breeding technology continues to increase, breeding constantly expanding. My county can produce 20 million high-quality eye-colored eggs, is the largest high-quality fish supply base in our province. Rainbow trout artificial propagation technology I have the following experience. Identification of rainbow trout maturity Rainbow trout maturity identification mainly refers to the identification of female maturity. Male general to be able to squeeze semen, and thicker is appropriate. Female maturity is the identification of sexual maturity of female fish