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首页> 外文期刊>Aquaculture Economics & Management >Economic assessment of an intra-specific cross of silver perch (Bidyanus bidyanus Mitchell) for commercial farming.
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Economic assessment of an intra-specific cross of silver perch (Bidyanus bidyanus Mitchell) for commercial farming.

机译：商业养殖银鲈（Bidyanus bidyanus Mitchell）种内杂交的经济评估。

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The native freshwater silver perch, Bidyanus bidyanus, has the potential to form a large pond-based aquaculture industry in Australia, but at present, production is based on genetically un-improved stock. Research for improved growth rate has identified a significant level of hybrid vigor in fingerlings of the Murray River x Cataract Dam cross (MC). This study investigated whether the profitability of a commercial farm could be increased by using this intra-specific cross. Results indicate that silver perch bio-economics are sensitive to growth rate; use of MC increased annual return by AU$33,092, 20-year NPV by AU$324,895 and saved 56 days average grow-out. Cash flows became positive earlier for a farm using MC, which was also more risk efficient with only a 4% chance of making an annual return of less than AU$0. Although use of MC should result in improved profit to farmers, high feed costs and the small size of farms remain as major constraints to industry growth.
机译：本地的淡水银鲈Bidyanus bidyanus有潜力在澳大利亚形成大型的池塘水产养殖业，但目前的生产是基于未经基因改良的种群。有关提高生长速度的研究已经确定了Murray River x Cataract Dam Cross（MC）的鱼种中的杂种活力水平很高。这项研究调查了是否可以通过使用种内杂交来增加商业农场的利润。结果表明，银鲈生物经济学对增长率敏感。使用MC可使年回报增加33,092澳元，使20年净现值增加324,895澳元，并节省56天的平均成长时间。使用MC的农场的现金流量较早变得正数，这也提高了风险效率，只有4％的机会获得低于0澳元的年回报。尽管使用MC可以提高农民的利润，但高饲料成本和小农场规模仍然是制约行业增长的主要因素。

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