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海水繁養殖研究(2003~2006)

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  • 日期: 2019-07-22
海水繁養殖研究(2003~2006)-室內立體養蝦系統培育白蝦種蝦研究
主題: 室內立體養蝦系統培育白蝦種蝦研究
摘要:
利用室內立體循環水養蝦系統,分二階段培育白蝦種蝦。第一階段是將室內養殖至平均體重10-11公克之中蝦,以每平方公尺100尾的密度放養在上層三口18-T水槽中,經越冬培育7個月。三口水槽的成長率及餌料係數大體一致,前者分別為0.077、0.071及0.075 g/d(平均 0.074 g/d),後者為2.18、2.29及 2.40 (平均2.29),活存率分別為79.1、80.6、77.3% (平均79.0 %),共育成4260尾20公克以上的大蝦,且在3、4月間發現有雌蝦卵巢自然發育達B期。第二階段是將上述的大蝦經挑選出1960尾,以每平方米20尾的密度,分別放養於上層三口水槽及下層二口水槽中繼續培養4個月。成長率及餌料係數上層平均0.105 g/d及 2.93;下層0.072 g/d及2.95。平均活存率上下層各為95.5%及 94.8%,5口水槽共培育出1865尾30-38 g種蝦,但在7月上旬至11月上旬的培育期間並無發現有卵巢成熟者。根據本研究試驗結果,室內立體循環水養蝦系統可增加單位產量及做種蝦大量培育。
出版日期: 2003/6/30
報告來源:
作者: 曾寶順 林明男 丁雲源
卷: 1
期別: 1
頁碼: 1-9
作者 auther(英): Bao-Shuenn Tzeng, Min-Nan Lin and Yun-Yuan Ting
標題title(英): Parental shrimp culture in an indoor multi-layer recirculating system
摘要abstract(英): Mass production of broodstock of Litopenaeus vannamei was conducted in an indoor circulating water system. In the first phase, it lasted 7 months for grow-out culture including over-wintering under density of 20 pcs/m2 in three 18-T FRP tanks, the initial average body weight of shrimp was 10-11 g, and the final body average weight was above 20 g. Growth rate and feed conversion ratio of shrimp in the three tanks were almost the same, growth rate was 0.077, 0.071 and 0.075 g/d (0.74 g/d in average), and feed conversion ratio was 2.18, 2.29 and 2.40 (2.29 in average), respectively. Survival rate was 79.1%, 80.1% and 77.3% (79.0% in average), respectively. 4260 grow-out were obtained in total. During early March to later April, the ovary of several shrimp grew to B mature stage. In the second phase, 1960 shrimp were selected from total with 4260 grow-out shrimps was obtained in the first phase, the stocking density was 20 pcs/m2. Shrimp were kept in three tanks on the second floor and two tanks on the first floor for 4 months. The average growth rate and feed conversion ratio was 0.105 g/d and 2.93 on the second floor, respectively, and 0.072 g/d and 2.95 on the first floor, respectively. The average survival rate was 95.5% on the second floor and 94.8% on the first floor. Total with 1865 brood stocks of 30-38 g body weight was obtained from 5 tanks. There was no mature shrimp in 5 tanks during the culture period, from mid-July to early November. Based on the results, we thought that indoor automatic culture system could increase production per unit and produce mass brood stock.
使用語言: 中文
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