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怎么预防观赏鱼的水霉病

  早春时节观赏鱼水霉病的预防
  Prevention of Hydramycosis of Ornamental Fish in Early Spring水霉病俗称白毛病、肤霉病。该病初发即病菌刚寄生鱼体(卵)不久时,肉眼一般难以看出病鱼(卵)异样,而当肉眼能看到时,病菌丝已侵入鱼机体内或卵膜内,大量繁殖向内外生长,成为灰白色的旧棉絮状物覆于病鱼(卵)体表,并分泌酵素分解鱼组织,使鱼卵胚胎发育中止;使病鱼患处肌肉腐烂,行动迟缓,食欲减退而死亡,给养殖生产带来较大经济损失。
  Water mildew is commonly known as white hair disease and skin mildew. When the pathogen first parasitized the fish body (eggs), it was difficult to see the diseased fish (eggs) by naked eyes. When the disease could be seen by naked eyes, the diseased mycelium had invaded the body or the egg membrane, and grew in large numbers, forming a gray-white old cotton flocculent covering the surface of diseased fish (eggs) and secreting enzymes to decompose the fish tissue, thus stopping the development of diseased fish eggs embryos. Muscle decay, slow action, loss of appetite and death, bring greater economic losses to aquaculture production.
  此病一般发生在20℃以下的低水温环境,在早春、晚冬容易流行。水霉菌对寄主无严格选择性,各种养殖鱼类从鱼卵到成鱼均容易被感染。密养越冬池中的鱼类、春季清瘦水体的鱼类或处于饥饿状态下的鱼类易患水霉病。春季投放鱼种时,如果操作不当也会引起水霉病的暴发。
                                          济南鱼缸售后
  The disease usually occurs in the low water temperature environment below 20 C. It is easily prevalent in early spring and late winter. Aquatic fungi have no strict host selectivity, and all kinds of cultured fish are susceptible to infection from eggs to adults. Fish in overwintering ponds, fish in lean water in spring or fish in starvation are susceptible to hydrophobic mildew. When fish species are introduced in spring, the outbreak of water mildew will also occur if the operation is not proper.
  防治水霉病以消毒为主。可以选择一些较温和的消毒剂给水体消毒,投放一些沉水性的颗粒底改剂,再使用些杀水霉菌的药物。具体方法是:鱼类入池操作过程中要尽量仔细,勿使鱼体受伤。入池前用3%~5%的食盐水溶液浸泡鱼种8~10分钟。避免在水温15℃以下的条件下处理养殖鱼类,以免鱼体冻伤或擦伤。若发现鱼类已感染水霉病,可把食盐和小苏打按照3:1的比例混合,以1毫克/升的浓度全池泼洒;情况较严重的适当增加用量。受伤亲鱼可用4%磺酒涂抹患部;鱼卵可用4%福尔马林浸洗2~3分钟。
  Disinfection is the main way to prevent and cure water mildew. Some milder disinfectants can be selected to disinfect the water body, some submerged granular bottom modifiers can be put in, and then some antifungal drugs can be used. The specific method is: fish into the pond operation process should be as careful as possible, not to injure the fish. The fish were immersed in 3%-5% saline solution for 8-10 minutes before entering the pond. Avoid dealing with cultured fish under the condition of water temperature below 15 C, so as to avoid frostbite or abrasion of fish body. If it is found that fish have been infected with water mildew, salt and baking soda can be mixed in proportion of 3:1 and sprinkled in the whole pond at a concentration of 1 mg/liter. In serious cases, appropriate dosage should be increased. The injured parent fish can be smeared with 4% sulphur liquor and the eggs can be washed with 4% formalin for 2 to 3 minutes.
 

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