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研發優化餌料生物之技術

  • 日期:111-10-21
  • 計畫編號:110農科-6.2.3-水-A1(1)
  • 年度:2021
  • 領域:漁業科技研發
  • 主持人:陳陽德
  • 研究人員:許自研、王淑欣、王鐘慶

本計畫探討以本所保種的餌料生物取代白蝦苗培育中的豐年蝦無節幼蟲使用,我們以即時聚合酶連鎖反應(Real-time PCR)的檢測技術確認了本所保種的S型輪蟲與短角異劍水蚤無帶原10種白蝦重要疾病,並將其擴培運用白蝦育苗實驗中。在後續白蝦苗培育試驗中,在白蝦眼幼蟲2期開始投餵S型輪蟲的組別,可以獲得較高的育成率(60.73±13.20%)相較於傳統使用豐年蝦無節幼蟲投餵的組別(41.35±4.93%),收成蝦苗的體長則無顯著差異;而在白蝦苗後期幼蟲培育試驗(PL2-PL9)中,使用短角異劍水蚤投餵的組別與傳統使用豐年蝦無節幼蟲投餵的組別, 育成率分別為86.88±4.54%與89.55±8.04%,兩者並無顯著差異,以上結果顯示我們可以使用輪蟲與短角異劍水蚤的接替使用,完整取代豐年蝦無節幼蟲在白蝦苗生產上的使用。

研究報告摘要(英)


The use of Artemia nauplius on white shrimp,Litopenaeus vannamei, larvae production is important, but the price of Artemia cysts is increasing in the last decade. In this study, we want to evaluate the feasibility of replacing Artemia nauplius on white shrimp larvae production with live food that our institute conserved. First, the conserved s-type rotifers, Brachionus rotundiformis, and copepod, Apocyclops royi, were confirmed not to be infected with 10 important diseases of white shrimp by realtime PCR detection technology. In the white shrimp larvae cultivation test, the survival rate of white shrimp larvae fed with B. rotundiformis (fed at zoea stage) (60.73±13.20%) is higher than fed with Artemia nauplius (fed at mysis II stage) (41.35±4.93%). And the body length of shrimp larvae of all treatment is no significant difference. In the white shrimp postlarvae (PL2-PL9) cultivation test, the survival rate of white shrimp larvae fed with A. royi is 86.88±4.54%, and fed with Artemia nauplius is 89.55±8.04%. The survival rate is no significant difference between these two groups, and the body length gain is also the same. In summary, we can completely replace the use of Artemia nauplius on white shrimp larvae production with the use of B. rotundiformis and A. royi.