区块链技术在鱼类农产品质量监管中的应用研究

针对鱼类农产品市场的现状,分析了鱼类农产品在养殖、加工和运输过程中可能存在的养殖环境污染、饵料不达标或疾病等影响产品质量和安全的问题,不仅对消费者权益构成威胁,同时也限制了鱼类农产品市场的健康发展。研究了区块链技术去中心化、透明性和不可篡改等特性,以及其他在食品安全领域的广泛应用,设计了一个基于区块链技术的鱼类农产品质量溯源系统,利用区块链技术对鱼类农产品养殖、加工、运输和销售等全程信息进行记录,实现数据可追溯,有效解决鱼类农产品的质量安全问题,保护消费者权益,推动农产品供应链的数字化和智能化转型,助力鱼类农产品行业的高质量发展。

调整养殖品种结构提高鱼货质量

由于人民生活水平的提高,对水产品的需求不再是吃得到的问题,而是要吃得好,对高品鱼的选择性增强,有些商品鱼已由卖方市场转变为买方市场。

Distribution and Relationships of Seven Trace Elements （Cr, Fe, Mn, Ni, Co, Cu and Zn） in Freshwater Fish from Five French Fishing Areas

The concentrations of seven essential trace elements in 149 freshwater fish from eight fish species （European eel, bream, common carp, European catfish, roach, perch, pike and pikeperch） from five different French fishing areas from contaminated and control sites were measured by inductively coupled plasma mass spectrometry after microwave digestion under pressure. Differences in the concentration of elements in the muscles of these species were examined and the mean levels were compared for each species with previous French and European studies. The condition factor and the differences between the control and contaminated sites and between predatory and non-predatory groups, with respect to the concentration of these elements, were also studied.