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鸚鵡刺尻魚之量產技術研發

  • 日期:110-08-02
  • 計畫編號:109農科-12.3.2-水-A1
  • 年度:2020
  • 領域:農業生物經濟
  • 主持人:許鐘鋼
  • 研究人員:劉素華、許秀媛、黃金峰、蘇勰忠、莊成意

鸚鵡刺尻魚種魚之配對雌雄比為1:1,蓄養在250公升的PP桶中,以自行配製的人工 飼料投餵,並收集計算卵粒,進行仔稚魚之繁殖試驗。鸚鵡刺尻魚種魚產卵期自6月 11日至11月22日(165天),共產卵158天,合計卵數405,829顆(81.17g),其中上浮 卵185,421顆(45.69%),下沉卵220,408顆(54.31%),日平均產卵數2,569±1,200顆 ,平均每g卵約5,000顆,受精卵卵徑為683±16um。產卵期間養殖水溫24.5-27.5℃。 共有11對種魚產卵量超過10,000顆,此11對種魚產卵量365,448顆,佔總產卵量 90.05%。其中以F10組種魚產卵76,958顆最多,其次為F15組產卵48,366顆。上浮卵 率以F10的74.28%最高,F3的10.66%最低。日均產卵數以F10的570±278顆最多,F6的 186±161顆最少。

新發現的育苗開口餌料(纖毛蟲)已經可以被保存並量產,將有助於育苗活存率之提 升。這是鸚鵡刺尻魚育苗研究的一大突破,配合另一個餌料純化技術,將能在未來 建立穩定的繁殖技術平台,達到推廣之目的。

研究報告摘要(英)


The male and female ratio of Centropyge loriculus was 1:1, was stocked in 250 liters of PP tanks with artificial feed, and the eggs were collected and calculated to carry out the breeding test of the larvae. The Spawning period of C. loriculus was from June 11 to November 22 and lasted 165 days, including 158 spawning days. The total eggs was 405,829(81.17g), including 185,421 buoyant eggs(45.69%) and 220,408 sinking eggs (54.31%). The average daily spawning number was 2,569±1,200, about 5,000 eggs per gram, the fertilized eggs diameter was 683±16 um. During the period, the water temperature was 24.5-27.5℃. There were 11 pairs of spawning more than 10,000 eggs. The spawning amount of these 11 pairs was 365,448, accounting for 90.05% of the total. Among them, pair F10 laid 76958 eggs, followed by pair F15 with 48366 eggs. The rate of buoyant eggs was the highest in pair F10 (74.28%) and lowest in pair F3 (10.66%). The highest average number of eggs laid per day was 570 ± 278 in pair F10 and the lowest was 186 ± 161 in pair F6.

The newly discovered bait (ciliates) can be preserved and produced in mass production, which will help to improve the survival rate of seedlings. This is a great breakthrough in the research on the breeding of C. loriculus. Combined with another bait purification technology, a stable breeding technology platform will be established in the next year to achieve the purpose of promotion.