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談“網紅小龍蝦”背后的養殖產業

2018-06-13 16:29:14 來源:農機網原創 作者:林言 閱讀量:50243 評論

  【中國農機網 編輯視角】近兩年,每到了5、6月份,受歡迎、火爆的網紅食品莫過于小龍蝦了。這個季節長江以南的地區簡直是吃小龍蝦的天堂,各家餐館店鋪都在爭相叫賣,食客絡繹不絕。近些年隨著消費升級和網絡營銷的快速發展,我國小龍蝦產業發展迅猛,國內消費市場持續放大。火爆的小龍蝦市場也帶動了小龍蝦產業的迅速發展。
 
  據6月12日農業農村部漁業漁政管理局聯合全國水產技術推廣總站、中國水產學會在江蘇盱眙發布的《中國小龍蝦產業發展報告(2018)》顯示,2017年我國小龍蝦養殖面積突破1000萬畝,產量突破100萬噸;2017年小龍蝦全社會經濟總產值約2685億元,比2016年增長83.15%,其中,養殖業產值約485億元,占社會經濟總產值的18.06%。
 
  目前,小龍蝦養殖已成為生態循環農業發展的主要模式之一,是新時代加快推進漁業綠色發展具活力、潛力和特色的朝陽產業。小龍蝦養殖模式主要有稻蝦綜合種養、池塘主養、蓮藕(葦)田套養、河蟹池混養、大水面人工增養殖等。其中,稻蝦綜合種養和池塘主養為各地主要養殖模式。
 
  稻蝦共生,種養結合
 
  近年來,已有多個地區實行“稻蝦共生”這種模式,它是一種將小龍蝦在稻田里養殖的種養模式,這種模式能達到種養雙贏的效果。龍蝦在田間爬動松土,使得稻田土質不宜板結,有效防止水稻根莖腐爛,蝦糞又能為水稻補充足量的養分;龍蝦在稻田四處爬動,攝食害蟲和蟲卵,使得水稻的天敵無處存生,如此一來既能肥田又能降低水稻的病蟲害,可以大幅提高稻田產值;除此之外,由于龍蝦對化肥農藥十分敏感,稻田不能使用化肥農藥,在這種生態模式下,稻田減少農藥用量超過50%,減少化肥用量超過30%,起到了明顯的降本增效的作用。
 
  稻蝦互利共生的復合循環種養生態模式,充分利用了稻田光、熱、水及生物資源,把水田生態系統的種植業與養殖業有機結合了起來,在確保糧食穩產的前提下,形成了”一水兩用,一田雙收、種養雙贏“的格局,大限度提高了稻田產出率,同步提升了品質和價格。
 
  人工池塘養殖:工廠化機械化
 
  工廠化、機械化是一切養殖產業擴大規模、提益的基礎。小龍蝦的工廠化養殖也是如此。目前我國小龍蝦工廠化養殖還尚未成熟,下面筆者簡單介紹一下養殖的關鍵。
 
  首先,育苗設施有講究。工廠化育苗設施主要有室內孵化池、臺苗池、供水系統、供氣系統及應急供電設備等。繁殖池、育苗池的面積一般為12~20米²,池水1米左右,建有進排水系統及供氣設施,進排水管道以塑料制品為好。
 
  其次,水源是基本也是重要的因素,它決定著水質條件和養殖成敗。一般要求水源穩定、充足、清潔、衛生、水溫適宜,水質良好,無任何污染,符合國家漁業水質標準,同時要求注、排水方便,且單排單注。在注、排水口要建好攔魚網具,既避免敵害生物及野雜魚入池,又可防止各種養殖品種的逃逸。
 
  第三,要增產須調節水質。精養池塘應配備專門的增氧機,增氧機具有增氧、攪水和曝氣的功能,是目前有效的改善水質、防止浮頭、提高產量的專用養殖機械之一。因此,在池塘養殖小龍蝦時,高產池塘需要使用增氧機。目前,我國已生產出噴水式、水車式、管葉式、涌噴式、射流式和葉輪式等類型的增氧機,其中以葉輪式增氧機增氧效果好,在小龍蝦池塘養殖中使用也廣泛。
 
  結語
 
  我國人口眾多,中國人自古以來講究“民以食為天”,不管怎樣,小龍蝦這個生于稻田、火于網絡的“網紅食品”實實在在地帶動了相關產業鏈的發展。隨著消費熱情的持續升溫,小龍蝦生產也在不斷擴大。未來,希望在各產地政府的持續重視下,小龍蝦養殖設施可以進一步完善,全面實現工廠化、機械化,并帶動養殖、加工、運輸、餐飲、節慶文化全產業鏈發展,使小龍蝦真正成為可以走出的民族“網紅食品”。
 
  本文由農機網(www.goodqmj.com)原創,部分資料來源:農業農村部漁業漁政管理局、水產資料大全,如有侵權或異議請聯系我們。
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