12月份将进入冬季的大雪和冬至时节,气温和水温将会逐步降低,养殖投喂开始减少或已停喂,水质开始转好,同时水体中各种微生物包括病原菌、寄生虫等因水温关系会受到抑制或被淘汰,因而各种鱼类疾病的发生情况将会进一步好转。预测12月份水产养殖病害会比11月份略有下降。病害将以白斑病、红腿病、托拉病、偷死病、烂鳃病、水霉病、孢子虫病、车轮虫病、隐核虫病、红底板病、白底板病、白点病、疖疮病、腐皮穿孔病等为主。热带鱼类及甲鱼等养殖品种要做好越冬防寒措施。 December will enter the winter heavy snow and the winter solstice season, the temperature and water temperature will gradually reduce the breeding feed began to reduce or have stopped feeding, water quality began to turn good, while various microorganisms in the water, including pathogens, parasites and other water temperature will be Be suppressed or eliminated, so the occurrence of various fish diseases will be further improved. Aquaculture diseases are forecast to decline slightly in December compared with November. Disease will be white spot disease, red leg disease, Tora disease, stolen disease, gill disease, water mold disease, sporidosis, rickettsia, cryptosporidiosis, red sole disease, white sole disease, white spot disease , Scabies disease, skin puncture and other diseases based. Tropical fish and turtles and other aquaculture species to do winter cold measures.