共查询到19条相似文献，搜索用时 130 毫秒
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据开发应用水产饲料膨化机实践，初步论述了膨化机生产能力与动力匹配，螺杆设计参数长径比，物料在腔内滞留时间，膨化腔设计及其温度调控，并提出改进设计的见解. 相似文献
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膨化饲料中粗脂肪总量的测定 总被引：1，自引：0，他引：1
由于乙醚直接提取法不能完全提取膨化饲料中的脂肪，使粗脂肪的测定结果产生较大的偏低，故本文对酸水解-乙醚提取法进行方法探讨和对比实验.结果表明，酸水解-乙醚提取法测定膨化饲料中脂肪具有较高的准确性和精密度(S/X＜3％).本文方法适宜于膨化饲料中脂肪的测定，并建议用酸水解-乙醚提取法作为挤压膨化饲料中脂类测定的行业标准方法. 相似文献
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水产饲料标准的颁布，规范了市场行为，但数量偏少，不利于对水产饲料质量的全面管理.我国实行推荐性饲料标准，有助于生产适销对路产品，但在卫生安全指标上仍应加以规范. 相似文献
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两天来，在省政府、省农委和水产厅领导的支持、指导下，在全体与会会员的共同努力下，我们在福州顺利地召开了福建省第三届水产饲料科技研讨会，达到了预期的目的。在开幕式上，省水产厅张文良厅长作了“福建省水产业发展对水产饲料科技的要求态势”的报告，刚才我们研究会王克风顾问又作了重要的讲话，这对我们研究会工作和水产饲料研究都有指导意义。出席这次研讨会共128人，提交大会的论文报告54篇，其中在大会上报告的有24篇，这是我会历次研讨会参加人数最多、提交论文最多的一次，尤其可喜的是年轻同志的比例比历次都大。这次研讨会… 相似文献
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在滚滚而来的信息革命浪潮中，水产饲料企业应当如何面对.针对饲料企业的特点和信息构成情况，本文在建立企业内部网，开设企业与外部信息交流站点及开展电子商务等方面提供参考. 相似文献
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《中国海洋大学学报(自然科学版)》2016,(11)
南极磷虾资源丰富,氨基酸、脂肪酸营养均衡,是一种公认的优质蛋白源,可以用于水产饲料中,对养殖动物起到促进生长、改善肉质、提高繁殖性能等功效。本文总结了近年来南极磷虾粉在水产饲料中的应用研究进展,包括南极磷虾粉对水产动物生长性能、品质和繁殖性能的影响,以及制约南极磷虾粉在水产饲料中应用的科学和技术因素等。同时,总结了南极磷虾油在动物能量动态平衡的调节、抗炎症反应和与鱼油存在的不同代谢机制等方面的研究进展。旨在为南极磷虾产品的开发和在水产饲料中的应用提供参考。 相似文献
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ICZM (Integrated Coastal Zone Management) is a decision-making process for sustainable use, development and protection of coastal marine areas and their resources, in continuous realization. Norway is currently dependent upon the commitment and motivations of the municipalities to fulfill its ICZM initiatives. These communities are lacking epistemic communities that can help prevent the simmering conflicts surrounding aquaculture expansion, as demonstrated by media data from 1984–2010. With the forthcoming harvest of the zooplankton redfeed in Norwegian and surrounding waters, the Aquaculture industry could be in a situation of expanded feed resources, which would ensure its expansion if localities are made available. This would also be in line with the Norwegian government's commitment to the expansion of this industry. A government-endorsed growth of the Aquaculture industry will add fuel to these simmering conflicts concerning the use of the eco-system of collective goods and services available along national coastline in Norway for Aquaculture purposes. The suggestions from the recently released report from the Select Committee appointed by the Ministry of Fisheries and Coastal Affairs in Norway on Effective and Sustainable Area Use in the Aquaculture Industry cab be an aid to supporting the growth of epistemic communities and a subsequent successful national ICZM implementation, thereby paving the way for a conflict-less coastal area management. 相似文献
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The growing aquaculture industry is projected to feature ever more prominently in the lives and economies of rural coastal communities in Atlantic Canada and around the world. Both private industry and government have a responsibility to ensure employment opportunities created in aquaculture take place in healthy, safe environments. However, systematic occupational health and safety (OHS) research within this industry, an important prevention tool, is still in its infancy. With particular emphasis on marine aquaculture in Atlantic Canada, we provide a detailed outline of the structure of the industry from feed production through to processing, identify potential OHS hazards associated with each of these activities and make recommendations for future research and action. 相似文献
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海底沉积物取样技术对大洋诸多科学研究来说非常重要,各种研究目标的实现与沉积物样品的质量息息相关.在使用常规管状取样器对松软或轻微固结的沉积物取样时,沉积物样品的扰动总是不可避免的.以机械手持式沉积物取样器为原型机,建立了管状取样器的取样过程模型,分析了沉积物样品的扰动机理;采用球形孔扩张理论获得了沉积物土体受到取样管挤压扩张的理论解;结合太平洋具体沉积物土体物理力学参数,对管状取样器取样造成沉积物扰动的状况给出了一个定量描述,并且提出取样管壁的厚度是减小沉积物扰动的关键参数. 相似文献
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《Marine Policy》2017
While the expansion of aquaculture production can confer positive economic impacts, under certain conditions, aquaculture can also have negative environmental impacts. Understanding the total economic impacts of aquaculture expansion is therefore necessary in order to make informed decisions when weighing economic considerations against environmental concerns. This paper considers the wider economic impacts, both direct and indirect of expansion in the Irish aquaculture industry. By disaggregating the aquaculture sector from Ireland's 2010 Input-Output table and calculating the resultant Leontief inverse matrix a number of economic multipliers for the aquaculture sector are estimated and used to calculate the potential indirect impacts of expansion. These multipliers are then used to estimate the economic impacts of reaching the targets set out in the recently published Irish national strategic plan for sustainable aquaculture, highlighting the potential for such an expansion to contribute to the rural economy. 相似文献
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福建渔用饲料业现状与发展趋势 总被引：2，自引：0，他引：2
当前福建省渔用饲料工业正处在发展中的稳定调整阶段，饲料生产能力、产品产量和市场需求应将基本保持稳定，安全卫生符合生态要求已成为衡量行业健康发展的重要指标，应成为企业追求发展的方向和政府监管的重点. 相似文献
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A time series dataset spanning 39 years(1981-2018) on red tide events in Zhejiang coastal waters was used to study the characteristics of inter-annual spatial and temporal variations. A distinct inter-annual pattern characterized by low frequency, explosive growth and fluctuating decline stages was found over the studied time scale. Most red tide events occurred in parallel to the bathymetric contour, and 95.4% were located to the west of the 50 m isobath. Additionally, the high-incidence area o... 相似文献
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J. S. Bullivant 《新西兰海洋与淡水研究杂志》2013,47(1):135-146
The lophophorates all feed by “impingement” feeding, so named by analogy with certain types of particle separators used in industry. In gymnolaemate bryozoans the feeding current is directed at the mouth where particles impinge and are sucked into the pharynx; in phylactolaemate bryozoans the particles impinge in the trough of the lophophore and are transported to the pharynx by cilia. In phoronids and brachiopods, particles impinge on the frontal surface of the tentacles and are conveyed to the pharynx by tracts of cilia. 相似文献
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雨生红球藻和虾青素研究述评 总被引：18，自引：0，他引：18
虾青系作为食品和饲料色素添加剂有着广阔的应用前景,单细胞绿藻雨生红球藻在特定条件下可双大量积累虾青素,有可能成为该色素的良好天然资源,受到微藻学界的重视。但目前雨生红球藻培养还处于实验室阶段,大规模生产尚存在许多问题有待解决,我国这方面的研究处于起步阶段。为此通过微机查阅１９８１￣１９９７年的国内外发表的有关文献,结合我们的实验结果,从该藻的基础生物学特性、虾青素累积的机制、养殖现状进行了综述,并 相似文献