摘要
进行了黑龙江地区乌鳢的人工繁殖和仔鱼摄食生长研究 ,初步摸清了乌鳢的人工繁殖条件、催产方法、产卵和孵化等 ,并对受精卵和鱼苗的色彩变化进行了描述。仔苗的摄食生长实验表明 ,仔鱼不摄食人工鲟鱼开口饲料 ,这一阶段可进行鱼苗发塘 ,利用池中天然饵料喂养。仔鱼孵出 4天卵黄囊吸收消失后 ,进行不同时间投喂活饵对鱼苗生长影响试验 ,在卵黄囊消失后 1～ 3内天开始投喂活饵的鱼苗可快速生长 ,在 4～ 7天内开始投喂的生长明显减慢 。
Artificial reproduction and the fry growth of Ophiocephalus argus were studied in Heilongjiang We made the tentative research about the condition of artificial reproduction,and described the color changing of fertilized eggs and fry.The fry of Ophiocephalus argus that ju st was hatched can not intake the artifical feed ,but can intake the natural fee d in water.The yolk were completely absorbed after the forth day that the fry we re hatched we begain to feed them.The fry that begin to take in feed after hatch ed 1～3 days grew rapidy and 4～7 days grew slowly,if we fed them after 8 days,t he fry would not intake feed.
出处
《水产学杂志》
CAS
2001年第2期16-20,共5页
Chinese Journal of Fisheries
关键词
乌鳢
人工繁殖
仔鱼
摄食
生长
Ophiocephalus argus
Artificial reproduetion
Fry
Feed
Growth
