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肠炎病是危害草鱼生产的奠定鱼病,具有流行时间长、死亡率高的特点,为草鱼养殖生产带来了不利的影响.文章以广西西宁地区的草鱼肠炎病为例,在简单概述草鱼肠炎病及其危害的基础上,具体分析怎样有效防治这种鱼病,从而更好的促进草鱼养殖发展,增加养殖人员的收入. 相似文献
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正淡水池塘养殖过程中常并发草鱼细菌性烂鳃、细菌性肠炎及赤皮病,统称草鱼"三病",各养殖场在养殖季节都有可能发生。2017年6月,靖远县东湾镇瓜园村刘某渔场发生草鱼"三病",发病草鱼100尾,死亡33尾。为了更好的防治鱼病,笔者将发病情况及诊治过程总结如下,以供大家参考。1病原细菌性烂鳃病的病原是柱状嗜纤维菌,细菌性肠炎病的病原是肠型点状气单胞菌,赤皮病的病原是荧光假单胞菌,3种病害的病原都属于革兰氏阴性菌。病原菌适宜水 相似文献
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草鱼赤皮病的防治方法四川自贡市潘树良草鱼赤皮病一般是在６～１０月间发生，此病死亡率高，有的鱼塘几乎全部死完。因此，对草鱼赤皮病的防治应引起养鱼户的重视草鱼赤皮病主要表现为鱼体表局部或大部出血，鳞片脱落，部分鳍条基部充血，鳍条末梢腐烂等。鱼病１０天左右... 相似文献
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草鱼是四大家鱼之一,是我国主要的经济养殖品种。草鱼肉味鲜美,营养价值高,深受广大消费者喜欢。草鱼生长速度快、饲料来源广、产量高,但是草鱼养殖过程中经常出现的赤皮病、肠炎病和烂鳃病等疾病,极大地降低了养殖效益。本文结合工作实际,总结出了草鱼细菌性烂鳃病的防治技术要点,以供养殖者参考。 相似文献
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草鱼是深受人们喜爱的养殖品种,在池塘养鱼中,草鱼增肉倍数高、生长速度快、增产潜力大,但是草鱼抗病力弱,易患烂鳃、肠炎和赤皮病,简称“三病”。草鱼“三病”在我国许多养鱼地区都有不同程度的流行,在北京,6—9月份为“三病”流行季节,尤其是7月下旬至9月上旬,盛夏 相似文献
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草鱼是我国传统的优良养殖品种,具有生长快、肉味佳的特点.但草鱼的抗病力和成活率均较低,易患出血病、烂鳃病、赤皮病和肠炎病.该"四病"严重影响草鱼养殖生产,务必引起养鱼户重视. 相似文献
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在池塘养鱼中,草鱼增肉倍数高,生长速度快,增产潜力大。但是草鱼抗病力弱,易患肠炎、烂鳃和赤皮病(简称“三病”).“三病”在我国许多养殖地区都有不同程度的流行,一般认为是不治之症。“三病”的症状表现为:腹部膨大,肠壁里红色,肛门外突红肿,轻压腹部有淡黄色粘液从肛门流出;鳃丝腐烂发白,残缺不全,有污泥,尖端软骨外露;体表腹部两侧大部分充血、发炎,鳞片脱落,鳍条末梢腐烂。这些均可确诊为典型的“三病”.草鱼“三病”是由病毒和细菌引起的, 相似文献
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Fleece rot and dermatophilosis reduce health and production of sheep and predispose them to blow fly strike. This paper reviews aetiology, prevalence, pathogenesis, resistance, attempts to develop vaccines and prospects for new control strategies to these important skin diseases. Although the severity of fleece rot is associated with the abundance of Pseudomonas aeruginosa on skin, microbial ecology studies are providing new insights into the contribution of other bacteria to the disease. Wool traits and body conformation traits that predispose sheep to fleece rot and dermatophilosis are heritable and have been used as indirect selection criteria for resistance for many years. Selection against BoLA-DRB3-DQB class II haplotype in cattle can substantially reduce the prevalence of dermatophilosis and holds promise for identification of gene markers for resistance to these bacterial diseases in sheep. Immune responses in skin and systemic antibody responses to bacterial antigens are acquired through natural infection and contribute to resistance; however, prototype antibacterial vaccines have to date failed to provide protection against the diversity of isolates of Dermatophilus congolensis and Pseudomonas species present in the field. Opportunities for future control through breeding for resistance, vaccines and non-vaccine strategies for controlling the microbial ecology of fleece are discussed. In combination, control strategies need to reduce the risk of transmission, minimise exposure of animals to stressors that enhance the risk of infection, and enhance resistance though genetics or vaccines. 相似文献
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白腐真菌是一种作用于木质类结构,专门用于降解木质素、纤维素、半纤维等多糖类物质的真菌,在现代轻工业中的作用非常重要。近年来关于白腐真菌的研究逐渐增多,主要集中在3个方面:①白腐真菌的发酵培养;②白腐真菌降解的机理;③白腐真菌酶的研究。1白腐真菌的作用木质素是植物的重要组成成分之一,它是填充在细胞间和细胞壁的结构成分,占细胞结构的15%～30%。秸秆中的非水溶性木质纤维素很难被酸和酶水解,主要是因为纤维素的结晶度、聚合度以及环绕着纤维素与半纤维素缔合的木质素鞘所致。木质素与半纤维素以共价键形式结合,将纤维素分子包埋… 相似文献
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C V Bagley M C Healey R L Hurst 《Journal of the American Veterinary Medical Association》1987,191(5):541-546
Sheep affected with foot rot were treated by vaccination and/or hour-long footsoaks, without hoof paring. The response to each treatment was obvious, but the cure rate was not satisfactory for eradication efforts. Booster vaccination and hoof paring combined with medication applied topically greatly improved the response to treatment. There was little difference in response to footsoaking or footbathing when hooves were pared. 相似文献