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近日,笔者接连诊断了几家发病渔场,发现造成几家养鱼户鲤鱼大量死亡的原因是由一种单极虫大量寄生引起的。经过笔者的诊断和治疗,病情基本得到控制。 相似文献
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牛前胃迟缓在养牛临床上是一种常见病,对于发病牛要做好诊断工作,及时进行治疗。主要阐述了牛前胃迟缓的诊断和防治方法,以期为该病的临床诊治提供依据。 相似文献
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多普勒超声诊断是一种无创伤性的检查方法,能在不损伤机体下诊断内脏器官,现已广泛应用于人类医学疾病的诊断和畜牧领域,而在水产业应用很少。本试验用多普勒超声诊断仪观察黄鳝Monopterus albus的性腺发育和内脏器官形态,记录观测结果,分析超声影像,做出合理的判断。 相似文献
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流行性腹泻是母猪常见的一种急性肠道传染病，给国内外猪养殖业造成巨大的经济损失，因此有效诊断和防治母猪流行病腹泻具有重要意义。从母猪流行病腹泻临床症状、病理变化、致病机制、诊断方法和防治措施进行分析，以期为母猪流行性腹泻的诊断和防治提供借鉴。 相似文献
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马肠梗阻也称为马肠便秘,是一种常见的多发病。其因马肠道机能紊乱导致肠道阻塞,出现马匹粪便停滞,是一种肠管阻塞的急性病。对马肠梗阻的诊断和治疗进行探究,旨在为马匹疾病预防和治疗提供参考依据。 相似文献
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鱼类寄生粘孢子虫病的诊断 总被引：2，自引：0，他引：2
粘孢子虫病是一种常见的鱼类侵袭性疾病，给渔业生产带来极大的危害。然而由于粘孢子虫外具有几丁质的壳瓣，寻求药物很难达到治疗效果：其免疫治疗又由于缺乏有效的疫苗而受到限制。因此粘孢子虫病的诊断是其治疗的重要课题。其诊断方法也是各不相同，总起来说共有4种：病状诊断；形状学诊断；免疫学诊断；分子生物学诊断。本文讨论了各种诊断方法的利弊以期能总结出更为有效的诊断方法。 相似文献
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Freshwater prawns, particularly, the Giant Freshwater prawn Macrobrachium rosenbergii, are one of the most economically important farmed species in the world. Faced with increasing disease problems in penaeid shrimp culture, farmers turned to freshwater prawn farming. Freshwater prawns were considered relatively less susceptible to diseases. However, with intensification of culture and increased world trade of the farmed species, emerging diseases are beginning to constitute an increasingly serious health problem in freshwater prawn culture. This article is a review of the important diseases reported in freshwater prawns, with particular emphasis on the white tail disease of M. rosenbergii as it is the most important disease recorded to date and also the most well studied among the diseases of freshwater prawns. Steps to be taken for proper health management in the farming of this species is also touched upon. 相似文献
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Zhu Jiajie Yu Kai Ao Qiuwei Tan Yun Fu Qiang Jiang Hesheng 《Aquaculture International》2021,29(3):1141-1159
Aquaculture International - Nile tilapia is an important economically farmed fish worldwide, and Streptococcus agalactiae has become the most serious disease problem for the tilapia industry in... 相似文献
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大菱鲆(Scophthalmus maximus)是我国北方沿海地区重要的养殖经济鱼类,在北方沿海区域经济的快速发展中发挥了重要作用。但随着养殖的规模化和集约化发展,大菱鲆病害问题已成为产业可持续发展的主要瓶颈之一。文章综述了大菱鲆腹水病的临床症状、病原菌和致病条件,并结合养殖现状,提出在实际生产中采取免疫接种等综合预防措施、一旦发病选择西医结合的方法进行对症治疗的建议,可为大菱鲆腹水病的流行病学研究、疾病发生预警以及防治提供参考。 相似文献
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R. A. ELSTON J. H. BEATTIE C. FRIEDMAN R. HEDRICK M. L. KENT 《Journal of fish diseases》1987,10(2):121-132
Abstract. Inflammatory bacteraemia was found in 27–31% of Pacific oysters in two bays over 2 years in Puget Sound, Washington, USA. Mantle discolouration and raised yellow to green nodules are associated with the disease in 52% and 85% of the observed cases, respectively. The disease is caused by systemically distributed, branching. Gram-positive, acid-fast bacteria suggestive of an actinomycete. Clusters of the bacteria elicit a marked inflammatory response. Glycogenic degeneration of host vesicular cells occurs in the advanced infections and results in the formation of the characteristic nodules comprised of lipid filled cells. The disease is, thus, significant to the health of individual oysters and also appears to be an important factor in the historically observed phenomenon of summer mortality in certain areas of Puget Sound. 相似文献
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Keiichiro Iguchi Kogi Ogawa Masaki Nagae Fuminari Ito 《Aquaculture (Amsterdam, Netherlands)》2003,220(1-4):515-523
The impact of coldwater disease caused by Flavobacterium psychrophilum is a recent important problem in the farming of ayu (Plecoglossus altivelis). We hypothesized that stress from high-rearing densities predisposes fish to disease by reducing their immunocompetence, and we sought to reduce fish losses by introducing an alternative culture regime. Fish enclosed at three densities (1250 fish or 8.0 kg, 400 fish or 2.6 kg and 100 fish or 0.6 kg/m3) were examined. Fish in the high-density treatment exhibited more elevated serum cortisol concentrations and more suppressed serum immunoglobulin M (IgM) concentrations accompanied by higher mortality, possibly caused by coldwater disease, than those in the medium- and low-density treatments. These results indicate that high-rearing densities stress fish and evoke subsequent physiological responses which have maladaptive effects. We propose that coldwater disease may be prevented by improving the disease resistance of fish by using moderate stocking densities. 相似文献