英国斯特灵大学水产养殖研究所对一龄、二龄和当年雌亲鱼自行繁殖的鱼卵在28℃下人工孵化,在循环水系统中培育20天测定鱼苗的生长和成活率。不同年龄的雌亲鱼所产后代分开饲养,每组鱼苗分别于孵化后6天、9天、12天、15天、18天时开始喂食,日投饵4次。试验结束取鱼样测定体 The Institute of Aquaculture, University of Stirling, England, self-propagated fish eggs of females at first, second and current year were hatched at 28 ° C and grown in a circulating water system for 20 days to determine the growth and survival rate of fry. Females of different ages were kept offspring. Each group of fry started feeding at 6 days, 9 days, 12 days, 15 days and 18 days after hatching, and fed 4 times a day. End of the test take fish sample determination body