首页> 外文学位 >The economic viability of the channel x blue hybrid (channel catfish, Ictalurus punctatus, female x blue catfish, Ictalurus furcatus, male).
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The economic viability of the channel x blue hybrid (channel catfish, Ictalurus punctatus, female x blue catfish, Ictalurus furcatus, male).

机译:x x蓝色杂种的经济可行性(,鱼,斑点鱼Ictalurus,雌性x蓝色fur鱼,furcatus Ictalurus,雄性)。

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摘要

Declining profit margins from the catfish industry have forced farmers to look for alternative ways to increase their profits from catfish farming. One method to increase profits from catfish production is through selective breeding. Auburn University has experimented with interspecific hybridization of catfish. The most promising hybrid is the channel catfish, Ictalurus punctatus, female x blue catfish, Ictalurus furcatus, male, which has improved characteristics compared to the channel catfish.; An economic evaluation was conducted on the impacts of the CB hybrid on the catfish industry. Enterprise budgets and associated risks, for the different production phases of the CB hybrids and channel catfish were developed and evaluated. The budgets were used in a linear programming model (LP) to find the combination of production activity that would maximize farm profits while minimizing production risks. An equilibrium displacement model (EDM) was used, to study CB hybrid adoption on producer and consumer welfare. Benefit-Cost (B/C) analysis and Internal Rates of Return (IRR) were used to evaluate the net returns to hybrids research for different rates of CB hybrid adoption.; Enterprise budgets showed that the production of CB hybrid eggs, fry, fingerlings and food fish generated positive net returns above all costs. There were risks associated with increased income. Based on the LP results, the introduction of CB hybrids increased the net income of channel catfish farms. When farmers were free to choose the most profitable activity in the absence of constraining market forces, they choose the production and sale of CB hybrid fingerlings. When a farm was forced to use at least 75 percent of its water acreage for the production of foodsize hybrids, the net returns decreased. The EDM model showed that with a 50 percent industry level adoption of CB hybrids and a supply elasticity for non-feed inputs of one, the benefits accruing to the catfish industry were 310 million dollars. The change in the consumer surplus which represented the benefits accruing to catfish processors attained 226 million dollars, while the benefits accruing to the catfish producers were 84 million dollars. The B/C analysis for the net returns to hybrid research ranged from 1 to 76, while ERR ranged from 10.4 to 32.6 percent. The IRR's were larger then the required rates of return, and the B/C was larger than one. The results suggest that investment in CB hybrid research is worthwhile.
机译:fish鱼业的利润率不断下降,迫使农民寻找其他方法来增加cat鱼养殖的利润。增加cat鱼生产利润的一种方法是通过选择性育种。奥本大学已经尝试了specific鱼的种间杂交。最有前途的杂种是沟channel鱼,Ictalurus punctatus,雌性x蓝色cat鱼,Ictalurus furcatus,雄性,与沟cat鱼相比,特性有所改善。对CB杂种对the鱼产业的影响进行了经济评估。制定并评估了CB杂种和production鱼不同生产阶段的企业预算和相关风险。预算被用于线性规划模型(LP)中,以找到生产活动的组合,这些活动将使农场利润最大化,同时将生产风险最小化。使用平衡位移模型(EDM)研究CB混合采收对生产者和消费者的福利。效益成本(B / C)分析和内部收益率(IRR)用于评估不同CB混合动力采用率的混合动力研究的净收益。企业预算显示,生产多用途混合鸡蛋,鱼苗,鱼种和食用鱼产生的净收益高于所有成本。存在与收入增加相关的风险。根据LP结果,CB杂种的引进增加了channel鱼养殖场的净收入。当农民在不受市场力量约束的情况下自由选择最有利可图的活动时,他们会选择生产和销售CB混合鱼种。当一个农场被迫将至少75%的水面积用于生产不同规格的杂种时,净收益下降了。 EDM模型显示,在行业水平上采用CB杂种的比例为50%,非饲料投入的供给弹性为1 ,,鱼产业的收益为3.1亿美元。消费者剩余的变化代表the鱼加工者的收益达到了2.26亿美元,而to鱼生产者的收益则为8400万美元。混合研究净收益的B / C分析范围为1至76,而ERR的范围为10.4%至32.6%。 IRR大于所需的回报率,且B / C大于1。结果表明,对CB混合研究的投资是值得的。

著录项

  • 作者

    Ligeon, Carel Michiel.;

  • 作者单位

    Auburn University.;

  • 授予单位 Auburn University.;
  • 学科 Economics Agricultural.; Agriculture Fisheries and Aquaculture.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 263 p.
  • 总页数 263
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农业经济;水产、渔业;
  • 关键词

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