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石斑魚養殖模場技術之建立

  • 日期:104-03-10
  • 計畫編號:103農科-14.3.2-水-A1
  • 年度:2014
  • 主持人:葉信利
  • 研究人員:陳陽德、朱永桐、張丁仁、黃哲倫、吳承憬、邱靜山、黃政軒、葉信利

今年度本計畫主要以加強石斑魚養殖模場養殖設施為首要目的,我們完成建置大型蓄水沉澱池、海水電解消毒系統、以及模場蓄水系統三者連結的水處理系統,用水經過水質檢測,海水弧菌數從原水的5×102 CFU/ml降至0,水中懸浮微粒亦有所減少,水中含氮廢物減少,對於未來石斑魚養殖模場的防疫能力有絕佳的幫助;另外完成模場內部維生系統與進排水系統的測試,並已完成大型石斑魚苗投放置中間育成場試養,將測試養殖量與水質變化情形,作為未來測試營運的數據;我們也著手進行模場育苗生產試驗,魚苗存活時間長達30天,體長達到1.2公分(4分苗),雖然後來因水處理系統建置造成停水,無法及時調整水質而緊迫死亡,但提供我們育苗生產的水質變化數據與經驗。除了硬體建設外,我們完成原有種魚的健康度篩選,分別針對NNV、GIV病毒做檢測,未來可以用來生產高優質健康種苗;也著手開發新雜交石斑魚品系,目前已成功養殖出褐石斑與龍膽石斑、金錢斑與龍膽石斑的雜交斑,已成長至120公克;持續進行室內型石斑魚育苗試驗,成功達到10%育苗成功率;亦針對餌料生物(輪蟲、橈角類等)進行光合菌培育生產與投餵模式的探討,以用於未來在模場育苗試營運的操作指標。總而言之,我們完成石斑魚養殖模場明年試營運的準備。

研究報告摘要(英)


We completed build water treatment system including huge water sedimentation pool, electrolyzed seawater chlorination and filtration system, and water system for model factory for groupers aquaculture. The total bacterial count of raw water passed through this water treatment system is decreasing form 5×102 CFU/ml to 0. The total suspended particles and nitrogenous waste in water are also decreasing. We also completed the test of oxygen system and culvert system and tried to culture large-scale grouper juvenile. On the other hand, we also started to try larval culture of groupers in the model factory. The grouper larval survive 30 days. (Body length is about 1.2 cm) Although those larval dead because of the bad water quality. (The water has be cut off because of the build of water treatment system) This experiment also can supply us the changes of the water quality during the larval culture.
In addition to the building of the facilities, we complete the health screening of the grouper brookstock, especially NNV and GIV disease. In future, we can prouduce good larval with those health brookstock. And we also experimented on grouper hybridization and then breeding two hybrid successfully. (One hybrid is E.brunneus× E. lanceolatus, the other hybrid is E. tukula×E. lanceolatus) The body weight of those hybrid larval is about 150 gm. The survival rate of our indoor grouper larval culture can be above 10%. Above all, we have prepared to the trial operation of the model factory for groupers aquaculture next year.