我国牛蛙养殖已有一定时期。但在冬季一般皆处在冬眠状态。要使牛蛙在冬季生长是有一定的难度。那么怎样才能使牛蛙在冬季生长呢? 首先要保持住外界环境的温度。因牛蛙是变温动物。它的体温随着外界温度变化而变化,自身不能调节体温,当气温下降到2～5℃时又发生休眠状态,而当体温下降为0℃时,则体内发生刺激神经中枢的 Bullfrog farming in our country has a certain period of time. But in winter are generally in hibernation. To make the bullfrog grow in winter is a certain degree of difficulty. So how can we make bullfrogs grow in the winter? First of all, to maintain the temperature of the external environment. Because bullfrog is a warm-blooded animal. Its body temperature changes with the outside world temperature changes itself can not regulate body temperature, when the temperature dropped to 2 ~ 5 ℃ and then dormancy occurs, and when the body temperature dropped to 0 ℃, the body occurs to stimulate the nerve center