一、牛娃的蝌蚪越冬管理 1、要有一 定的水深。整个越冬期间要始终保持一定 的水深,一般最好静水水深在1米左右,流 水水深在50厘米左右。2、要保持一定的水 温。蝌蚪冬季水温可低至—4℃,但尽量能 使水温稳定大5℃左右为好。因此,一定要 采取适宜的保温措施,如在池中搭栅覆盖 塑料薄瞑等。3、要做到每月至少更换一次 池水,其每次的换水量为原池水的五分之 First, the cow baby tadpoles wintering management 1, there must be a certain depth. During the entire winter to always maintain a certain depth, the best water depth of about 1 meter, running water depth of about 50 cm. 2, to maintain a certain water temperature. Tadpoles winter water temperature can be as low as -4 ℃, but try to make the water temperature stable about 5 ℃ as well. Therefore, we must take appropriate insulation measures, such as in the pool to cover the plastic gate lap and so on. 3, to be done at least once a month to replace the pool water, each of its original water for the fifth of the water