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鱼类是变温动物,其代谢水平与水温密切相关。冬季水温低代谢能力下降,耗氧量减少,食欲减退,甚至停食,生长也减慢或者停止,如果水温降到胡子鲶生存的极限温度10℃以下时,胡子鲶的代谢水平将降到最低,出现生命垂危,甚至死亡。养鱼生产上要求在面积小,密度高的水体内保持最大数量的鱼能安全地渡过寒冬。这是推广优良品种胡子鲶养殖的一个关键性的技术。一、越冬方式及设施采取那种增温措施越冬,各地可因地制宜灵活利用,目前我省主要有以下几种方法: 1、电厂等工厂余热及温泉越冬池:总面积要根据热源的温度、流量、地形以及生产规模而
Fish is a variable temperature animal, its metabolism is closely related to water temperature. Winter low water temperature decreased metabolic capacity, decreased oxygen consumption, loss of appetite, or even stop eating, growth also slowed down or stopped, if the water temperature dropped to the survival temperature of bearded catfish 10 ℃ below the level of metabolism of bearded catfish will be reduced to a minimum, Life is dying or even death. Fish production requires keeping the maximum number of fish in small, high density bodies of fish safely through winters. This is a key technique to promote the cultivation of excellent varieties of mustard catfish. First, overwintering means and facilities to take the kind of warming measures overwintering, around the flexible use of local conditions, at present our province mainly in the following ways: 1, power plants and other factory waste heat and hot spring pool: the total area according to the heat source temperature, flow , Topography and production scale