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从“国产三文鱼事件”看我国水产养殖行业发展

2018-05-26 11:55:26 来源:中国农机网 作者:林言 阅读量:48130 评论

导读:近几天,来自青藏高原的三文鱼在网上火了。

5月22日,央视财经发布了一则报道——万万没想到!中国市场上三分之一的三文鱼都被青藏高原“承包”了!消息一出,立刻引起了大量网友的讨论,各界人士都提出了自己的意见,或支持或质疑。

  【中国农机网 编辑视角】近几天,来自青藏高原的三文鱼在网上火了。
 
  5月22日,央视财经发布了一则报道——万万没想到!中国市场上三分之一的三文鱼都被青藏高原“承包”了!消息一出,立刻引起了大量网友的讨论,各界人士都提出了自己的意见,或支持或质疑。其中,部分媒体及网络大V认为,国产三文鱼和消费者所熟知的三文鱼不是一种鱼,实际上是淡水虹鳟鱼,寄生虫可直接寄生人体,生吃存在很高的风险。随后,中国之声发文称“虹鳟鱼也是三文鱼生吃没事”;中国渔业协会也发文辟谣,“虹鳟鱼属于三文鱼的一种”,并表示“三文鱼养殖是国家鼓励产业,经过多年的发展,已经成为现代水产养殖的代表产业之一。中国养殖三文鱼凭借地缘优势,相比进口三文鱼物美价廉,安全卫生,对老百姓来说是吃得起的放心三文鱼”。但是在这之后,网络上的争论并没有停止,关注点依然在“国产三文鱼”到底能不能生吃。

 
  孰是孰非暂且不论,站在农业角度,从这次“三文鱼之争”中我们可以看出,国内水产养殖行业相对来说还没有达到相对成熟的阶段。国内市售三文鱼大部分是从北欧、北美、南美、澳洲等地进口,很少一部分是国产养殖。不得不承认,欧美等发达国家的水产养殖水平是远高于国内的。虽然我国水产养殖种类繁多、产量巨大,是名副其实的水产养殖大国,但总体上仍处于粗放状态,可控性差、生产效率低。
 
  机械化是根本出路
 
  在农业领域,不管是种植业还是畜牧水产业,想要改变“大而不强”的现状,机械化是根本出路。水产养殖只有实现了机械化才能一改过去仅靠池塘养鱼的现状,从而提高生产效率和水产品品质,形成规模。鉴于我国地大物博,各地区养殖环境和特点不同,中国水产科学研究院渔业机械仪器研究所所长徐皓说,“应以系统功能复合构建为重点,优化养殖池塘标准化改造设施构建技术,开展区域性的水产养殖规划研究与示范改造工程设计,以养殖环境调控、生产作业省力省工为目标,开展机械化、智能化、信息化养殖装备研发与集成应用。”由传统养殖转向工业化生产,是推进我国水产养殖业走上现代化的必由之路。
 
  国外先进养殖经验
 
  在水产养殖行业中,工厂化养殖是目前比较主流也是我国大力扶植的新型工业化生产方式。工厂化养殖是依托现代工业基础建立起来的集约化养殖模式,具有先进的养殖装备,单位水体养殖密度高,产量高,养殖全过程都可以采用机械化或自动化操作,对养殖生产中的水质、水温、水流、投饵、排污等实行半自动或全自动化管理、且不产生养殖系统内外污染,是一种社会、经济和生态效益良好的养殖方式。
 
  目前国外工厂化循环水养殖技术比较发达的国家有北美的加拿大、美国,欧洲的法国、德国、丹麦、西班牙,以及日本和以色列等国家。
 
  在北美 ,美国的工厂化养殖在上世纪六七十年代就已得到迅速发展,主要以冷流水养殖虹鳟和大规模工厂化养殖条纹鲈和黑斑石首鱼为主,工厂化养鱼已被美国政府列为“佳投资项目之一”。
 
  在亚洲,日本自上世纪60年代发展工厂化养殖以来,也取得了突出成绩,目前工厂化养殖各种鱼、虾、贝等鲜活水产品年产达20万吨以上,而且技术成熟、产量稳定、综合经济效益高。
 
  在欧洲,工厂化循环水养殖已经成为一个新型的、发展迅速技术复杂的产业。据不完全统计,目前欧洲的封闭循环水养殖面积约30万平方米,且发展势头迅猛。
 
  结语
 
  和种植业机械化程度相比,我国水产养殖机械化发展步伐相对缓慢,近年来国家也相继出台一系列政策扶植水产养殖业。在2018年农机购置补贴种类中,增氧机、投饵机和清淤机3类水产养殖机械纳入补了贴目录。
 
  相信在不久的将来我国水产养殖技术会达到一定先进水平,实现集约、的生产方式以及生产线的全程自动化和全程监控,那时产品会更加安全可靠,“国产三文鱼”也不会再有争议。
 
  本文由中国农机网(www.nongjx.com)原创,转载请注明出处。资料来源:豆丁网,若有侵权或异议请联系我们。
 
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