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1.
一、2006年梭子蟹养殖病害发生情况主要疾病有纤毛虫病、蜕壳不遂、乳化病、烂鳃、不明原因死亡等。纤毛虫病:水质败坏,长时间不能蜕壳,大量纤毛虫附着在甲壳和附肢表面;蜕壳不遂:蟹不能按自然节律蜕壳,延长蜕壳时间,在蜕壳过程中发生死亡。与蟹缺氧和营养不良有关。细菌性的烂鳃病:池塘底质恶化,台风期池塘水体中大量泥沙的侵害造成鳃丝受伤, 相似文献
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截止1999年第26卷第6期,本刊专题讲座栏中连载的“罗氏沼虾的养殖技术”和“集约化水产养殖动物的非寄生性疾病及其防治”两篇文章,已经全部结束。为满足广大读者的需求,本编辑部决定自2000年第27卷第1期起连载“龟的疾病及其防治”和“暗纹东方鱼屯的养殖技术”。“龟的疾病及其防治”一文需连载3期,内容有:龟颈溃疡病、烂板壳病、白眼病、肠炎病、溃烂病、肺化脓病、急性传染性肝炎、口腔炎、肤霉病、钟形虫病、龟血簇虫病、阿米巴痢疾、龟椎虫病、蜱螨病、水蛭病、钩虫病、绿毛秃斑病、绿毛衰败症、冬眠死亡症、中毒症、水肿病。“暗纹东方鱼屯一文连载4期,内容包括:概述、暗纹东方鱼屯的生物学特性,暗纹东方鱼屯的人工育苗,鱼苗培育及成鱼养殖,池塘养殖技术 相似文献
3.
春季是水产养殖的旺季，但鱼类的一些疾病也就随之而来。现就鲤鱼烂鳃病的一些症状和治疗方法作以简单论述。烂腮病可分为寄生虫性烂腮病和细菌性烂腮病两大类。 相似文献
4.
一、鳖病的种类 鳖病虽然很多,但按其发生的原因和病状基本可分以下几类: 1.细菌性疾病:大多由细菌感染后发生如腐皮病、烂颈病、烂甲病等。这种病在鳖的常见病中占多数。危害较大。 2.真菌性疾病:发病原因是由真菌感染引起如毛霉病、水霉病。这种病发病迅猛,流行很快,同时可并发其它疾病。 3.病毒性疾病:人们在治疗中把一些对抗细菌和抗霉菌药物不敏感的病症怀疑为病毒性疾病。如肿颈病、红底板病和肠出血病等。此类病暴发快、死亡 相似文献
5.
正三、细菌性疾病虾蟹细菌性疾病是虾蟹最常见、危害非常严重的疾病,有虾红腿病、虾蟹肠炎病、虾蟹烂鳃病、虾烂尾病、蟹水肿病、蟹黄斑病、蟹肝坏死病等,其中虾红腿病、虾蟹肠炎病、虾蟹烂鳃病是最常见的几种,现将防治措施介绍如下。1.虾红腿病病原:弧菌或气单胞菌。病症:病虾一般在池边缓慢游动,随后逐渐沉底死亡;厌食或食欲不振,附肢变红,鳃变黄,肝胰腺 相似文献
6.
一、9月病害发生情况
根据广东各测报点本月水产养殖病害监测数据分析,9月份监测种类病害的发病范围和疾病种类、发病率与死亡率与上月差不多,仍处于高发期.主要病害有鱼类出血病、烂鳃病、赤皮病、细菌性败血症、细菌性肠炎病、溃疡病、纤毛虫病、孢子虫病、鳜鱼指环虫病、本尼登虫病和蟹弧菌病、褐斑病、鲍苗脱板病、虾类白斑病、红体病、红腿病、桃拉病及病因不明病等,发病种类5种以上的养殖品种有草鱼、鳗鱼、鳜鱼、鲮鱼、罗非鱼、鲫鱼、鲈鱼、鲢鱼、鳙鱼、鳖、对虾、罗氏沼虾共12种;在局部地区养殖黄鳍鲷指环虫病、斑节对虾白斑病、鲍苗脱板症发病率高于50%,红鳍笛鲷本尼登虫发病率达到100%;卵形鲳够烂鳃病死亡率20%、对虾红体病死亡率31%、鲍苗脱板病死亡率75%、斑节对虾白斑病死亡率88%.…… 相似文献
7.
广东省水产养殖病害防治中心 《海洋与渔业》2008,(7):45-45
一、6月病害发生情况
根据广东各测报点本月水产养殖病害监测数据分析，6月份监测种类病害的发病范围和疾病种类、发病率与死亡率较上月有所上升。主要病害有鱼类出血病、烂鳃病、赤皮病、细菌性败血症、细菌性肠炎病、纤毛虫病、指环虫病、锚头鳋病、车轮虫病、海水鱼本尼登虫病、鲍苗脱板病、对虾白斑病、红体病、红腿病、桃拉病和不明病因病等。 相似文献
8.
连云港市漠斑牙鲆苗种生产期间发现的疾病主要为细菌性疾病.现总结如下: 1 滑动细菌病(烂鳍病) 该病病原为滑动细菌类,细菌种类未鉴定.稚鱼期,体表及鳍基本无症状,病鱼的吻端出现发红、糜烂,背鳍、尾鳍出现残缺、烂尾现象.镜检发现有大量短杆细菌. 相似文献
9.
《中国水产》2012,(8)
8月份,我国大部分地区将持续高温,水生动物的细菌病、寄生虫病将可能继续加重,病毒病也仍将在部分地区流行.预测鱼类的细菌性败血症、烂鳃病、肠炎病、赤皮病、车轮虫病、指环虫病,甲壳类的白斑综合征、桃拉综合征、红体病、弧菌病、纤毛虫病,爬行类(中华鳖)的红底板病、白底板病、腐皮病等水生动物疾病的危害将可能进一步扩大.
一、易发疾病
(一)东北地区
根据辽宁省水产技术推广总站提供的资料和往年监测数据,东北地区8月份易发疾病主要有:
1.鱼类:鲤易发生细菌性败血症、肠炎病;草鱼易发生烂鳃病、赤皮病和肠炎病的并发症;团头鲂易发生细菌性败血症、车轮虫病;大菱鲆易发生肠炎病、弧菌病;虹鳟易发生肠炎病、烂鳃病. 相似文献
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Rodolfo Enrique del Rio‐Rodriguez Atahualpa Sosa‐Lopez Daniel Pech 《Aquaculture Research》2014,45(5):907-912
This study presents an Ex‐Post Facto analysis of diseases of wild juvenile and adults of Litopenaeus setiferus collected from a field survey at the Natural Protected Area of Terminos lagoon, southern Mexico. The objective of the present approach was to determine if sampling site and/or shrimp age were contributing risk factors for disease between juvenile and adult shrimp; if there was a determined period of time in a year cycle when diseases were more critical, and if the analysis would help to decision‐ making considering what population would pose less risk of disease‐carrying when withdrawn for experimental purposes; all under an after‐the‐fact (ex‐post facto) approach. We identified that juvenile shrimp were at more risk of contracting some diseases in the estuarine environment and June, July and August months, were found to be a critical period when colonizing and parasitic diseases maintained a significant high prevalence in the shrimp population. These assumptions may help for decision‐making when wild shrimp have to be withdrawn from their natural environment for research purposes. 相似文献
13.
影响刺参室内越冬保苗成活率的因素及改进措施 总被引：1，自引：0，他引：1
从越冬期间发病刺参苗的症状和病原、影响刺参室内越冬保苗成活率的因素(亲参种质、饲料营养成分、养殖密度、抗生素的使用、水环境的变化)及相应的解决措施等多方面进行了分析和讨论,提出了相应的对策,阐明了刺参的健康生态保苗技术是提高刺参室内越冬保苗成活率的有效措施。 相似文献
14.
Abstract. Skin diseases of sharks and algal diseases of animals are reviewed. A specific progressive skin disease of wild, laboratory-maintained and display-aquaria populations of spiny dogfish, Squalus acanthias L., observed during a 2.5-year period at Woods Hole, Massachusetts, is described. Skin lesions, from 1mm to over 1cm in diameter, developed in the following sequence: petechial and ecchymotic haemorrhages; dome-shaped vesicles; larger lesions with central ulceration; and hyperpigmented granulations in the final repair stage. A coccolithophorid algal agent could be demonstrated in skin lesions and is described. Since both sharks and coccolithophorid algae are primitive organisms, the possible evolutionary implications of algal symbionts modified to become pathogens are discussed. 相似文献
15.
At the moment, horse praxis is confronted by two disease complexes which are difficult to fight against as well in prophylaxis as in therapy, but which get an increasing importance. First they concern virus infections of the foals and second primary virus-caused respiratory diseases. Foals get infected during the embryonal/fetal development, in the perinatal or postnatal period. Normally the infection is caused by latent infected, clinical healthy mares, or in the postnatal period by ubiquitous, normally opportunistic socalled problem-viruses, i.e. equine herpes-viruses 1 and 2, rota-, corona- and adenoviruses. Primary responsible for the virus infections of the respiratory tract are the rhinopneumonitis- and influenza-A-virus, the reo- and rhinoviruses and the arteritis-virus. 相似文献
16.
江苏南部沿海文蛤大批死亡原因及对策 总被引：4，自引：0，他引：4
<正> 江苏南部沿海有丰富的文蛤资源,随着文蛤增养殖业的发展,病害所造成的大批死亡显得格外突出,给高产和大面积增养殖业带来严重威胁。1980和1981年,江苏省海洋 相似文献
17.
L. LEIBOVITZ 《Journal of fish diseases》1989,12(2):125-136
Abstract. Diseases of bivalve molluscs characterized by the presence of prokaryotic intra-cytoplasmic inclusion bodies in epithelial cells are reviewed. The paper reports the history, clinical and pathological findings during hatchery epizootics of chlamydiosis in larval and postmetamorphic bay scallops, Argopecten irradians (Lamarck), and enzootic infection in wild, captive and cultured adult and juvenile bay scallops during a 15-year period (1972–1987) of surveillance for scallop diseases in the northeastern Atlantic coastal region of the United States. The disease was found in 44·4% of adult bay scallop laboratory accessions as an endemic disease without overt clinical signs or mortalities, and as a highly fatal epizootic disease with a rapid course in 20% of hatchery-reared larval and postmetamorphic bay scallop accessions. The pathogenesis and development of the chlamydial agent during hatchery epizootics are described. The importance of the congenital 'childhood' diseases of larval bay scallops and other species of bivalve molluscs is discussed. 相似文献
18.
网箱养殖大黄鱼溃疡病的预报模型 总被引：2，自引：1，他引：1
本文以舟山市网箱养殖大黄鱼Pseudosciaena crocea (Richardson)为研究对象,根据对2001-2005年间网箱养殖大黄鱼发病情况的观察分析、养殖水域环境因子的监测及其收集的气象资料,对大黄鱼溃疡病的发生规律和养殖环境的状况进行了全面分析,结果表明大黄鱼溃疡病的发生不仅与季节有关,而且还与环境因子的状况密切相关。在此基础上,进一步研究了环境因子对大黄鱼溃疡病发生的影响程度和影响方式,筛选出与大黄鱼溃疡病发生密切相关的环境因子,从而建立了网箱养殖大黄鱼溃疡病发生的预报模型。经检验该模型对预报大黄鱼的溃疡病是否发生及发生的程度有高度显著的效果,用该模型对舟山市2005年大黄鱼溃疡病的发生情况进行了预报,预报的正确率达到81.2%。为能有效、适时地对发病季节大黄鱼疾病的控制,本文还同时给出了网箱养殖大黄鱼发病季节溃疡病的预报模型。 相似文献
19.
John Gregory 《Aquaculture Research》1979,10(2):53-62
A re-circulating system was used to examine the growth of two groups of young roach at an above ambient temperature of 20°C. An artificial diet was developed on which fish of one summer grew from 1.0 to 6.9 g over a 4.5 month winter period. Partial gonad development and the decrease in food intake to 1% body weight per day amongst fish of greater than 30 g were found to be serious limitations to growth. Parasitic diseases were readily controlled but the appearance of chronic kidney disease remains unexplained. 相似文献