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去年8月11日清晨,我场的一口面积为10亩的使用配合饲料养殖成鱼高产试验塘发生了严重翻塘死鱼事故,死去均重1kg 左右的草鱼约800尾,250克左右的鳊鱼约400尾,加上其它鱼类,共计死鱼1000kg 左右。发生泛塘的原因,除了水肥鱼密、气温突变(头一天下午下了雷阵雨)、天气闷热等客观因素外,与投饲不当有直接关系:一是投喂的配合饲料,日粮量太高,鱼吃不完,使池底沉积了很厚的一层饲料。这些饲料在水中腐败分解,既消耗了水中大量的溶氧,又败坏了水质,引起翻塘事故的发生。二是鱼儿吃得过饱,翻塘时引起大量的死亡。事实上,从重量来说,死去的草鱼占总
In the early morning of August 11 last year, a large area of 10 mu of fish farmed in a high-yielding trial of fish using compound feed died in the accident. About 800 grass carp died weighing around 1kg and weighing about 250 grams About 400 fish, plus other fish, a total of about 1000kg dead fish. Pan Tong occurred, in addition to water and fat fish dense, sudden changes in temperature (the first day afternoon under the thunderstorms), the weather is hot and other objective factors, and improper feeding is directly related to: First, fed with the feed, the diet is too high , The fish eaten endless, so that the bottom of the pool deposited a thick layer of feed. The decomposition of these feed spoilage in the water, both consumed a large amount of dissolved oxygen in water, but also corrupted the water quality, causing the occurrence of turning the pond. Second, the fish fed too full, turning pond caused a large number of deaths. In fact, dead grass carp accounts for the total weight