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首页> 外文期刊>Aquaculture >Profitability and adoption of improved shrimp farming technologies in the aquatic agricultural systems of southwestern Bangladesh.
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Profitability and adoption of improved shrimp farming technologies in the aquatic agricultural systems of southwestern Bangladesh.

机译：孟加拉国西南部水产农业系统的盈利能力和对虾养殖技术的采用。

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摘要

This paper assesses factors influencing adoption of new shrimp aquaculture technologies within aquatic-agricultural farming systems in southwestern Bangladesh. The impacts of three new technologies were assessed: two Modified Traditional Technologies (MTT 1 and MTT 2) and a Closed System Technology (CST). A total of 789 farmers from 10 sub-districts in Khulna Division were surveyed randomly, including a control group of 350 farmers using traditional technologies. Farmers gained significantly higher (P<0.05) net returns when practicing improved shrimp farming systems as compared to traditional farms. The profitability of CST farms was more than double that of MTT farms, and the profitability of MTT farms was more than that of traditional farms. Similar (P>0.05) financial benefit was derived from adoption of MTT1 and MTT2 technologies. Feed use, stocking density, gher size and white spot syndrome virus incidence were key factors associated with the economic returns of CST farms, while various supplementary feed inputs made a significant positive contribution towards increased return for the MTT farms. Lime was an important input for increased return both for MTTs and traditional farms. Farmer age and access to training influenced adoption of both technologies, and gher size and access to financing were significant for the more intensive Closed System Technology (CST).
机译：本文评估了影响孟加拉西南部水产农业系统中虾类新养殖技术采用的因素。评估了三种新技术的影响：两项改良的传统技术（MTT 1和MTT 2）和一种封闭系统技术（CST）。对库尔纳省10个分区的789位农民进行了随机调查，包括使用传统技术的350位农民的对照组。与传统养殖场相比，采用改良的虾类养殖系统时，农民的净收益显着提高（P <0.05）。 CST农场的利润率是MTT农场的两倍以上，MTT农场的利润率比传统农场更高。通过采用MTT1和MTT2技术可获得相似的（P> 0.05）财务收益。饲料的使用，放养密度，齿her大小和白斑综合症病毒的发生率是与CST养殖场的经济收益相关的关键因素，而各种补充饲料投入对MTT养殖场的收益增加具有明显的积极贡献。石灰是MTT和传统农场增加回报的重要投入。农民的年龄和获得培训的机会对两种技术的采用都产生了影响，对更密集的封闭系统技术（CST）而言，农户的规模和获得融资的机会很重要。

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