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预先配备好两种浓度的食盐溶液,一种是10％,一种是饱和溶液。在正式进行捡卵前用上述二种溶液配置成一种最适浓度,方法是将10％的食盐溶液先倒入水槽中,然后放入1000颗虹鳟卵,接着用普通淡水和原配置的饱和食盐溶液调节水槽中的食盐溶液浓度,使在30秒—1分钟内死卵浮上,这时槽中的浓度即为最适浓度。在实际操作时,可将在最适浓度中沉下的卵放笼框中在流水条件下孵化,死卵放另外
Pre-equipped with two concentrations of salt solution, one is 10%, one is a saturated solution. Before formally picking up eggs, use the above two solutions to configure an optimal concentration by pouring 10% of the salt solution into a sink and then placing 1000 rainbow trout eggs, followed by normal freshwater and the original salt The solution adjusts the concentration of salt solution in the tank so that the dead egg floats within 30 seconds - 1 minute, at which point the concentration in the tank is the optimum concentration. In practice, the eggs can be placed in the optimum concentration of the cage cage under running conditions, dead eggs placed in addition