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1994年9月我场9号塘草鱼亲鱼发生打印病,发病率达100%。我们采用注射、涂抹、泼洒三种综合施药方法,取得满意效果。 一、病因分析 我场7月份搞完鱼花生产后,将草鱼亲鱼饲养于9号塘。鱼放养前,9号塘没有用生石灰消毒塘。亲鱼入塘后,冲入新水少,另外塘水质偏酸偏软。因此,我们认为发生此病的原因是:亲鱼催产过程中有外伤,产完卵后,体质较差,加上水质不好,便感染了此病。
In September 1994, my field No. 9 pond grass carp occurred printing, the incidence rate of 100%. We use injection, smear, spill three kinds of integrated application methods, and achieved satisfactory results. First, the etiology analysis After finishing the fish production in July, the grass carp was kept in No. 9 pond. Before fish stocking, pond No. 9 did not use lime disinfection ponds. Broodstock into the pond, into the new water less, while the pond water partial acid soft. Therefore, we think that the reason for the occurrence of this disease is as follows: The brood stocking has trauma during oxytocin production. After laying eggs, the body constitution is poor, and when the water quality is not good, it is infected with the disease.