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水产动物诱食剂研究不断升温，就诱食剂作用的生理机制进行了分析，概述了目前使用的诱食剂及其诱食效果，简述了诱食剂在渔业生产上的作用。 相似文献
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综述了甜菜碱、氨基酸、动植物提取物3类诱食剂在水产养殖中的应用效果和实验情况。不同诱食剂对不同养殖对象引诱效果不同，同一种诱食剂对不同养殖对象的引诱效果也不同，使用混合诱食剂的一般可增强诱食效果。选择诱食剂的原则是有效、经济、安全、方便。 相似文献
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以鲫鱼为实验对象,研究了诱食剂NUTRI-TRACK对鲫鱼的诱食效果。结果表明:饵料中添加诱食剂后能显著提高鲫鱼的增重率,显著降低饵料系数,显著提高饵料干物质和蛋白质的消化率;同时通过观察统计实验鱼进入实验区和对照区中的次数,证实NUTRI-TRACK对鲫鱼具有较好的诱食作用。 相似文献
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水产动物诱食剂的研究进展 总被引：1，自引：0，他引：1
一、诱食剂研究方法日本、美国、前苏联早在60年代就采用多种方法对水产动物诱食剂进行了研究,主要方法有以下几种:1.电生理学方法这种方法的基本原理是水产动物接触到某些化学物质后,其嗅觉、味觉器官的兴奋性会产生变化,并引起感受器官电位的变化,这种电位变化可以用仪器记录观察,从而判断某些物质是否可以成为该种动物的诱食剂。2摄食行为法此法是诱食剂活性的生物鉴定法,主要有以下三种: 相似文献
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诱食剂在水产饲料中的应用 总被引：2，自引：0，他引：2
近年来,随着水产养殖业的迅速发展和鱼、虾、蟹等各类水产动物人工养殖规模化和集约化生产的形成,水产饲料诱食剂在饲料工业和水产养殖业中的应用及研究得到了长足的发展.自上世纪70年代以来,国外许多学者(特别是日本)纷纷开展了对鱼用饲料诱食成分的研究,鱼类的索饵、摄饵行为与化学刺激的关系日益明了.在鱼用饲料诱食成分的分离、分析、诱食活性成分定量分析、诱食成分人工模拟等方面取得了很大的进展.诱食剂已投入工业化生产,在养殖业中广泛应用,并已取得了明显的经济效益.我国在这一领域的研究偏少,近10年来才开始投入力量,而且主要以复配、仿制和摸索为主,自主研制和创新较少.因此,研究和发展水产饲料诱食剂的应用技术和开发产品对推动水产饲料工业与水产养殖业的发展和最大程度地提高养殖业水平有着十分重要的现实意义. 相似文献
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为了解淡水鱼类寄生虫的研究现状及前沿热点，为该领域研究工作的开展提供科学量化的参考依据，以Web of Science(WOS)核心合集数据库收录的1980—2020年共1 088篇相关文献为数据样本，运用VOSviewer和CiteSpace可视化软件绘制了淡水鱼类寄生虫研究的发文量、发文地区、发文作者、发文机构、关键词频次和突现状况等知识图谱，并对发文趋势和研究热点进行了分析。结果表明，淡水鱼类寄生虫研究领域的发文量总体呈上升趋势，2009年后上升趋势明显；淡水鱼类寄生虫的研究受到广泛关注，巴西、捷克和美国是淡水鱼类寄生虫领域的研究中心；捷克共和国科学院、墨西哥国立自治大学和新西兰奥塔哥大学等3个机构是淡水鱼类寄生虫领域的高产研究机构；Poulin R、Scholz T和Salgado-Maldonado G等3位研究人员是淡水鱼类寄生虫研究的核心力量；发文国家间和机构间形成了良好且稳定的合作关系，但研究者间合作关系较为分散，缺少跨团队合作；International Journal for Parasitology、Parasitology Research、Parasitolo... 相似文献
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ABSTRACTSince its beginning in the early 70thies, the fast growing Atlantic salmon aquaculture industry in Norway has been and still is an object for research across numerous disciplines and research fields. This article presents an overview of the research studies applying Material Flow Analysis (MFA) based methods on Norwegian Aquaculture of Atlantic Salmon starting from 2004 until 2018. The studies were reviewed in relation to their applied method, involved institutions, flows, data acquisition, and suggestions for improvement. All of the reviewed studies applied different MFA methods suitable to the objective of each study, were done with involvement of multiple institutions and stakeholders, modeled credible data and provided specific suggestions for reducing the environmental impacts and optimizing nutrients utilization efficiency. The review concludes that MFA-based methods have the potential for having a functional role within the framework of the Norwegian Salmon Aquaculture industry’s sustainable development. A key factor in fulfilling that potential would be diversifying the objectives of MFA research to be more inclusive of the three pillars of sustainability: environment, economy, and society. 相似文献
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渔业劳动力作为农业劳动力的重要组成部分，其转移的研究必然要以农业劳动力转移的研究为基础。文章回顾了我国渔业、农业剩余劳动力转移的研究，包括农业剩余劳动力的数量、劳动力转移的影响因素、解决劳动力转移的对策以及转移所带来的影响等。在此基础上归纳出两种类型的劳动力转移的特点；指出了现有研究存在的问题和今后进一步研究的方向。 相似文献
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Abdullahi Iliyasu Zainal Abidin Mohamed Mohd Mansor Ismail Amin Mahir Abdullah Salleh Mohamed Kamarudin Hashim Mazuki 《Aquaculture Economics & Management (Blackwell Science)》2013,17(3):221-247
Most research works on the production frontier in aquaculture focus on efficiency measurement using either Stochastic Production Frontier (SPF) or Data Envelopment Analysis (DEA). The studies on productivity growth in aquaculture were limited, perhaps due to lack of time-series data. Nevertheless, total factor productivity analysis (TFP) in fish farms has started gaining popularity in recent years. In addition, the majority of the efficiency studies have centered on technical efficiency analysis but substantial increases in the output levels can be fully realized through improving overall economic efficiency. Therefore, this review suggests that future research should estimate all three efficiency indices (i.e., technical, allocative and economic efficiencies). 相似文献
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Inland capture fisheries (ICFs) provide ecosystem services – fish for food, livelihoods and recreation – to people and therefore have an economic value. Economic valuation can inform the sustainable management of ICFs and ensure they are recognised in trade‐off analysis and decision‐making. This study assesses existing ICFs economic research to identify knowledge gaps. Bibliographic databases were searched for suitable peer‐reviewed articles. The selected studies (n = 75) were analysed for coverage, valuation methodologies and value metrics. A majority of existing studies value recreational ICFs in developed countries. Studies have employed a wide range of valuation methodologies and therefore provide a variety of economic values measured at different units and scales. This study highlights the need for a greater quantity of ICFs economic research that covers a representative sample of ecosystems and fishery types globally. Best practice recommendations are made for a standardised framework to ensure ICFs research generates economically credible and comparable values. 相似文献
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方格星虫的繁育、养殖及研究开发进展 总被引：1，自引：0，他引：1
方格星虫（Sipunculus nudus）是中国重要的经济类底栖动物,具有重要的食用价值和药用价值。由于近年来过度捕获造成自然资源匮乏,亟待养殖技术和繁育技术的提高以满足食用和药用研究需求。关于方格星虫的研究目前多集中在繁殖发育、营养和药用价值等方面。目前方格星虫的繁育技术已经初步成功,其养殖规模有望扩大,但是其生产方式和池塘养殖技术仍有待深入研究。文章综述了有关方格星虫分类、养殖生态、繁育、营养及其增养殖技术等方面的研究,以期为方格星虫养殖产业的发展与研究开发提供参考。 相似文献
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以相应引物PCR扩增栉孔扇贝(Chlamys
farreri)核基因组的核糖体DNA两个转录间隔子(ITS-1和ITS-2)，PCR产物经T载体连接后进行克隆、测序，分别得到了340bp和510bp的碱基序列，序列大小非常适合遗传变异及分子系统学研究。其A、T、G、C含量在ITS-1分别为32.06％，20.59％，22.35％和25.00％，在ITS-2分别为30.00％，21.37％24.12％和24.51％。这两个变异性较大的序列在扇贝种群中应用潜力很大，可广泛用于种内群体间遗传变异研究、种质鉴别及系统学研究。 相似文献
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Emilie Laurin Krishna Thakur Peter G. Mohr Paul Hick Mark St. J. Crane Ian A. Gardner Nicholas J. G. Moody Axel Colling Ingo Ernst 《Journal of fish diseases》2019,42(11):1471-1491
Samples from multiple animals may be pooled and tested to reduce costs of surveillance for infectious agents in aquatic animal populations. The primary advantage of pooling is increased population‐level coverage when prevalence is low (<10%) and the number of tests is fixed, because of increased likelihood of including target analyte from at least one infected animal in a tested pool. Important questions and a priori design considerations need to be addressed. Unfortunately, pooling recommendations in disease‐specific chapters of the 2018 OIE Aquatic Manual are incomplete and, except for amphibian chytrid fungus, are not supported by peer‐reviewed research. A systematic review identified only 12 peer‐reviewed aquatic diagnostic accuracy and surveillance studies using pooled samples. No clear patterns for pooling methods and characteristics were evident across reviewed studies, although most authors agreed there is a negative effect on detection. Therefore, our purpose was to review pooling procedures used in published aquatic infectious disease research, present evidence‐based guidelines, and provide simulated data examples for white spot syndrome virus in shrimp. A decision tree of pooling guidelines was developed for use by peer‐reviewed journals and research institutions for the design, statistical analysis and reporting of comparative accuracy studies of individual and pooled tests for surveillance purposes. 相似文献