De Donno A, Lugoli F, Bagordo F, Vilella S, Campa A, Grassi T, Guido M
Department of Biological and Environmental Sciences and Technology, (Di.STe.B.A.), University of Salento, Lecce, Italy.
J Prev Med Hyg. 2010 Mar;51(1):37-43.
Aquaculture is an enterprise in constant development, in particular relating to its effect on the environment and also the quality of its products. It represents a valid alternative to traditional fishing, facing the increasing demand for fish products. To guarantee to the consumer a product of high nutritional, organoleptic and hygienic quality, it is fundamental to monitor every phase of the fish farming industry, isolating the potential risk points. For this reason there has been a rapid evolution of productive technique, particularly in the technology, artificial reproduction and feed sectors. The aim of this research has been the monitoring of the evolution of certain microbial and nutritional quality indexes (total microbial counts and lipid analysis on suspensions of Rotifers and Artemia, used as live feed) in the larval phase of the productive cycle of the farm raised fish, in an intensive system. The study has shown an increment in the total microbial counts in the fish farming industry within the production of Rotifers and Artemia, more evident in the suspensions of Rotifers. In addition the study has demonstrated that the maintenance phase, in the enrichment protocol, can reduce the EPA and DHA content. The results confirm the importance of microbial and nutritional control of the live feeds before they get supplied to fish larvae.
水产养殖是一个不断发展的行业，特别是在其对环境的影响以及产品质量方面。面对对鱼类产品日益增长的需求，它是传统捕鱼的一种有效替代方式。为了向消费者保证产品具有高营养、感官和卫生质量，监测养鱼业的每个阶段并找出潜在风险点至关重要。因此，生产技术，特别是在技术、人工繁殖和饲料领域，有了快速发展。本研究的目的是监测集约化养殖系统中养殖鱼类生产周期幼体阶段某些微生物和营养质量指标（总微生物计数以及用作活饲料的轮虫和卤虫悬浮液的脂质分析）的变化。研究表明，在养鱼业中轮虫和卤虫生产过程中的总微生物计数有所增加，在轮虫悬浮液中更为明显。此外，研究还表明，在强化方案的维持阶段，会降低 EPA 和 DHA 的含量。结果证实了在将活饲料供应给鱼苗之前对其进行微生物和营养控制的重要性。
