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1.
用PCR方法快速检测水产品中的副溶血弧菌   总被引:10,自引:0,他引:10  
建立了水产品中副溶血弧菌快速,敏感,特异的PCR检测方法;选择的引物具有良好的副溶血弧菌的种特异性,对人工污染在冷冻水产品中副溶血弧菌的检测低限是12-21CFU/10g,对其增菌液的检测低限是7600-9100GFU/ml。每PCR反应体系的检测低限为91-109CFU,对400份自然污染样品的检测结果显示,PCR方法的检测结果同常规培养法的结果完全相符。  相似文献   

2.
随着人民生活水平的提高及水产品出口规模的扩大,我国水产养殖业发展非常迅速。但是在水产养殖中药物的滥用和非法使用问题严重,药物在水产品中大量积累,严重威胁消费者身体健康。伴随中国加入WTO。欧盟、美国和日本等国家对中国水产品中抗菌药物的残留提出了更高要求,中国水产品出口在短时间内多次遭遇“绿色壁垒”。自2002年1月25日欧盟宣布对中国出口的动物源性食品实行禁运后,中国水产品出口受到了极大的损失。对水产品中抗菌药物的残留研究已经迫在眉睫,国外学者开展这方面的研究较早,也已经取得了一定的进展.国内这方面的研究较少。本文就水产养殖中各类常用的抗菌药物在鱼、虾体内的残留研究现状、药物代谢动力学及检测方法等进行综述,以期能够对中国水产养殖中药物的应用及相关研究起促进作用。  相似文献   

3.
黄青 《海岸工程》1998,17(2):40-43
介绍了青岛水产品批发市场1,2,号楼工程地质地貌概况,通过分析现场检测结果,验证强夯在处理滨海地工人工地基加固方面的可行性。  相似文献   

4.
5.
发光细菌法检测水产品中氯霉素体系的建立   总被引:5,自引:0,他引:5  
从青岛近海分离的多株发光细菌中筛选出1株对氯霉素敏感的鳆发光杆菌Photobacterium leiognathi YL,接种单菌落快速培养,制备出适宜检测的菌悬液,添加不同浓度的氯霉素溶液,研究氯霉素浓度与细菌发光强度抑制率之间的关系.通过控制菌体起始发光强度、菌液与氯霉素作用时间,建立发光细菌检测水产品中氯霉素体系.结果表明,当菌体的起始发光强度控制在(2.0~4.0)×105、菌液与氯霉素的最佳作用时间为30 min时,氯霉素浓度与细菌发光强度抑制率呈良好的线性关系.该方法的线性范围为0.1~1.0 ng/mL,相关系数R2为0.989,该体系对氯霉素的检测灵敏度可以达到0.1 ng/mL,可以作为水产品中痕量氯霉素残留的1种快速、灵敏的检测方法.在水产品的氯霉素加标回收试验中,鱼肉中添加浓度为0.1~1.0 ng/g时,回收率在40.34%~114.26%之间.  相似文献   

6.
海洋是人类的摇篮,它孕育了人类古老的文化,创造了灿烂的现代文明,它为人类提供了丰富的物质财富,满足了人们对水产品日益增长的需求。中国渔业具有悠久的发展历史,为世界渔业作出了应有的贡献。中华人民共和国成立以来,中国渔业生产力水平有了很大提高,改变了旧中国渔业贫弱落后的局面。改革开放以来,中国渔业取得了举世瞩目的成就,渔业综合生产能力迅速提高,水产品产量高速增长,水产品供应明显改善,渔民收入稳步提高,2001年全国水产品产量达4382万t。在世界海洋渔业资源衰退、海洋水产品产量持续低迷的情况下,中国…  相似文献   

7.
我国水产品加工业的现状与发展方向   总被引:3,自引:0,他引:3  
1我国水产品生产现状1983年我国水产品总产量仅为5.458×06t,出口量为1.05×105t。近10年来,水产品生产得到了迅速的发展,1990年我国水产品总产量为1.237×107t,1991年达到1.354×107t,1993年已高达1.826×107t。计划到2000年,水产品总产量将达到2.85×107t。但与之相比,我国水产品加工业则发展缓慢。1993年,经加工的水产品约5.6×106t,仅占水产品总量的30%。如果除掉水产冷冻品,实际用于加工制品仅占总产量的11~16%,约1.5×…  相似文献   

8.
水产品消费价格变动会引起消费需求量和渔民收入变化的双重反应,准确预测价格指数对水产品市场具有重要的预警作用。本文基于1995年1月到2019年6月我国水产品类居民消费价格指数历史数据,通过Box-Jenkins方法构建季节性差分自回归滑动平均(SARIMA)模型,利用2019年7月至12月水产品消费价格指数进行模型验证,并预测了2020年1月至6月我国水产品价格指数波动。结果显示SARIMA(1,1,2)(1,1,1)~(12)模型预测结果与实际值之间的均方根误差(RMSE)、平均绝对误差(MAE)和平均绝对百分比误差(MAPE)都较小,MAPE值小于10%;2020年上半年我国水产品消费价格指数大致呈稳定状态,在97.0到97.7之间上下波动。研究结果表明本文所构建的SARIMA模型拟合结果较好、预测结果精度较高,可以较好地解释我国水产品消费价格指数变动的季节性与趋势性,为相关管理部门与单位预测水产品消费价格提供科学有效的方法,对合理应对我国水产品市场价格波动具有一定的参考价值。  相似文献   

9.
朱瑾 《海洋世界》2007,(2):28-32
近年来,危害人们生命健康的水产品安全事件时有发生,不仅给人们的身体健康造成侵害,同时,这一系列事件也给人们带来了不小的精神困扰,使不少人“谈鱼色变”;另一方面,“水产品信任危机”对于整个水产品行业的发展造成了不可低估的影响。为此,《海洋世界》杂志采访了北京市水产技术推广站殷守仁站长,他就我国水产品,特别是海产品的质量安全现状以及发展总体趋势为我们作了详细的介绍。[第一段]  相似文献   

10.
中国作为第一渔业大国,水产品出口贸易发展迅猛。但受国际政局动荡,贸易保护主义抬头,疫情后国际市场尚未完全恢复的影响,中国水产品出口贸易的发展受阻。而跨境电商在数字经济时代作为开展进出口贸易的一种新形式,对优化农渔业产业结构、促进农渔业经营增效、拓宽农渔民增收致富渠道等具有重要作用,但由于产业链不健全、专业水产品跨境电商平台建设存在短板、冷链物流频出问题及复合型人才欠缺等因素的制约,导致中国水产品优势尚未能通过叠加跨境电商释放倍增效应。基于此,文章以提取水产品出口跨境电商竞争力指标为基础构建竞争力模型,并通过SPSS和AMOS进行双因子实证分析,提出应从健全质量标准体系,提升跨境冷链物流服务水平等方面提高中国水产品出口跨境电商竞争力。  相似文献   

11.
中国对虾成虾肠道微生物区系   总被引:8,自引:0,他引:8  
对野生健康中国对虾成虾肠道微生物区系进行了研究.从其肠道中分离出47株菌,它们分别属于弧菌属、发光杆菌属、不动杆菌属、假单胞菌属、黄杆菌属、气单胞菌属、屈挠杆菌属和色杆菌属8个属.其中弧菌属和发光杆菌属在整个肠道中为优势菌属,不动杆菌属和假单胞菌属为次优势菌属,黄杆菌属、气单胞菌属、屈挠杆菌属和色杆菌属为非优势菌属.在对虾的整个肠道中,前肠和中肠的优势菌属为弧菌属,而后肠的优势菌属为发光杆菌属.在弧菌属中溶藻胶弧菌、漂浮弧菌和坎贝氏弧菌为优势菌,哈唯氏弧菌为非优势菌.前肠、中肠和后肠的菌量分别为1.3×105、2.8×105和1.1×104cfu/虾体.  相似文献   

12.
三疣梭子蟹死因探讨   总被引:4,自引:0,他引:4  
本文报道海捕三疣梭子蟹暂养中出现大量死亡的原因。电镜观察结果表明,死蟹的肝脏和肌肉组织中有大量的弧菌寄生,鳃组织中未见弧菌,但附着有枪蟹茗荷儿Octolasmislowei,加上暂养环境条件和其原海洋生态环境的不同是造成其死亡的主要原因。  相似文献   

13.
Portugal has the third highest seafood consumption per capita in the world and current patterns of seafood consumption are linked to how seafood products were embodied in the Portuguese society. The objective of this research is to understand Portuguese seafood consumption's main drivers and its consequences. For that official statistics were analyzed and a literature review on seafood consumption was undertaken. Portuguese seafood consumption is characterized by a wide diversity of species and preparing modes, when compared to other countries in Europe. Cod (salted and dried), does not exist in Portuguese waters but due to several factors, such as politics, religion and tradition, became the main species in Portuguese seafood consumption, representing around 38% of the national seafood demand. Five drivers are suggested to explain why Portuguese eat so much seafood: geography, marine resources, fisheries, social forces and politics; and consequences for the environment, economy and health are discussed. Hence while most dietary recommendations advise an increase in fish consumption is not applicable to Portugal and a more sustainable seafood consumption for the future is advocated.  相似文献   

14.
The human appetite for seafood has intensified and so has overfishing and damage to marine ecosystems. Recently, the response to the fisheries crisis has included a considerable effort directed toward raising the seafood awareness of consumers in North America and Europe. The resulting campaigns aim to affect the seafood demand and to lead to a sustainable seafood supply. Though there are indicators of some regional successes, lack of support by the Asian market and the proliferation of self-serving seafood labels are but two of the many significant limitations of these campaigns. This contribution investigates the difficulties and successes of seafood awareness campaigns, as well as the need for indicators of campaign effectiveness.  相似文献   

15.
This study investigates consumer attitudes toward stores selling only sustainable seafood in seven European countries. Using a split sample design, half of the respondents were asked if they would support new regulations requiring stores to sell only sustainable labeled seafood. The other half was asked if they would continue to buy their seafood at their preferred seafood store if the store implemented a new policy of selling only sustainable labeled seafood. Respondents were on average positive to new sustainability regulations that increased prices by less than 7%, and would on average not change store unless prices increased by more than 8%. Country differences are investigated and implications for private and public policies related to sustainability of seafood discussed.  相似文献   

16.
舟山渔场作为中国最大的渔场,其出产的海产品在全国的海鲜市场占有举足轻重的位置。文章选取数种舟山海域常见海产品为研究对象,对其体内的重金属、有机物含量在专业实验室进行检测,并对检测结果进行对比分析;以此为例简要阐述舟山海域常见海产品体内的重金属、有机物含量,并对这些海产品进行简单的食品安全性评价,为海产品食品安全专业研究人员提供一些数据参考。  相似文献   

17.
The seafood industry has become increasingly interconnected at a global scale, with fish the most traded commodity worldwide. Travel to the farthest reaches of the oceans for capture is now common practice, and subsequent transport to market can require hundreds to thousands of miles of travel by sea and air. Refrigeration of seafood products is generally required at all stages of the journey from ocean to dinner plate, resulting in substantial energy expenditure. Energy input for aquaculture (including mariculture) products can also be high, namely due to the large amounts of feed required to support fish growth. As a result of these factors, the seafood industry has a substantial carbon footprint. Surprisingly, however, carbon footprints of seafood products are rarely integrated into assessments of their sustainability by eco-labels, sustainability certification, or consumer seafood sustainability guides. Suggestions are provided here for how carbon footprints could be incorporated within seafood sustainability schemes.  相似文献   

18.
Seafood fraud is widespread and undermines attempts to achieve more sustainable fisheries and seafood trade. Deliberate mislabelling of fish was first detected in South Africa in 2009, exposing the lack of coherent or explicit naming and labelling regulations. It was followed by considerable media coverage and public outrage. This catalysed a series of events that led to the creation of a new space of engagement where scientists, academics, and industry could begin to jointly solve the issue of seafood mislabelling. This paper first evaluates and identifies the shortcomings of the existing policy and regulatory framework applicable to seafood naming and labelling in South Africa. Next, it examines approaches of some other countries to deal with seafood (mis)naming, and puts forward a set of suggestions that could be used to improve the status quo in South Africa, or any other country in a similar position. Finally, it reports on subsequent developments over the past five years following the seafood scandal, including the formation of a working group with representation from across the seafood supply chain, regulatory bodies, and experts: resulting in a submission of a proposal for a new national standard for seafood market names in South Africa. These findings show how diverse actors can work in a cooperative and practical manner, to solve a common problem. Finally, it highlights the importance of the “bridging” role that non-governmental organisations can play in achieving this.  相似文献   

19.
Over the past two decades, there has been a proliferation of consumer-facing, market-based initiatives for marine conservation—most notably in seafood eco-labels and sustainability certifications. Yet, despite the growing recognition of these initiatives by consumers and retailers in North America and Europe and the (subsequent) acceptance of their role in seafood distribution by fisheries and fish marketing industries around the world, seafood certification programs have thus far made little progress in Japan. Here, the evolution of the three seafood eco-label and certification programs in Japan is examined and insights into the ongoing challenges they face in terms of the domestic supply chain network, consumer preference and their social-cultural attitude toward sustainability are provided. Despite an initial lack of success, seafood certification programs in Japan can be useful in enhancing consumer awareness for fisheries resource conservation and identifying Japanese domestic small-scale fisheries that are already engaged in sustainable fishing practices. A possible pathway for developing an eco-certification program suitable for the Japanese seafood market is provided through integration of environmental and cultural sustainability under the existing certification framework.  相似文献   

20.
This paper suggests that detrimental effects of certain neoliberal fisheries policies are key drivers behind the development of alternative seafood marketing programs in North America. It examines the structures, market and non-market values, and challenges of these programs. The primary aim of the research, based on interviews involving 20 programs and a conference workshop, was to advance understanding of the market value of alternative seafood marketing to fishers and communities. However, the importance of a broader set of non-market values was repeatedly highlighted by those engaged in these programs. Overall, the research suggests that alternative seafood marketing can enable fishers to participate in fisheries managed by neoliberal, market-based policies, through the promotion of market values along their diverse value chains. At the same time, alternative seafood marketing appears to resist market-based fishing systems, sometimes through the promotion of broader, non-market outcomes. Common challenges along these alternative seafood value chains highlight the structural conflicts that exist while simultaneously participating in and resisting neoliberal fisheries structures.  相似文献   

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