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怎么預防觀賞魚的水霉病

  早春時節觀賞魚水霉病的預防
  Prevention of Hydramycosis of Ornamental Fish in Early Spring水霉病俗稱白毛病、膚霉病。該病初發即病菌剛寄生魚體(卵)不久時,肉眼一般難以看出病魚(卵)異樣,而當肉眼能看到時,病菌絲已侵入魚機體內或卵膜內,大量繁殖向內外生長,成為灰白色的舊棉絮狀物覆于病魚(卵)體表,并分泌酵素分解魚組織,使魚卵胚胎發育中止;使病魚患處肌肉腐爛,行動遲緩,食欲減退而死亡,給養殖生產帶來較大經濟損失。
  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.
  此病一般發生在20℃以下的低水溫環境,在早春、晚冬容易流行。水霉菌對寄主無嚴格選擇性,各種養殖魚類從魚卵到成魚均容易被感染。密養越冬池中的魚類、春季清瘦水體的魚類或處于饑餓狀態下的魚類易患水霉病。春季投放魚種時,如果操作不當也會引起水霉病的暴發。
                                          濟南魚缸售后
  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.
  防治水霉病以消毒為主。可以選擇一些較溫和的消毒劑給水體消毒,投放一些沉水性的顆粒底改劑,再使用些殺水霉菌的藥物。具體方法是:魚類入池操作過程中要盡量仔細,勿使魚體受傷。入池前用3%~5%的食鹽水溶液浸泡魚種8~10分鐘。避免在水溫15℃以下的條件下處理養殖魚類,以免魚體凍傷或擦傷。若發現魚類已感染水霉病,可把食鹽和小蘇打按照3:1的比例混合,以1毫克/升的濃度全池潑灑;情況較嚴重的適當增加用量。受傷親魚可用4%磺酒涂抹患部;魚卵可用4%福爾馬林浸洗2~3分鐘。
  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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