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生猪养殖专业化分工的生产率效应及其差异性研究——来自自繁自养型养殖场户的经验证据

The Productivity Effect and Its Heterogeneity of Specialized Division of Labor in Pig Breeding——Empirical Evidence from Farrow-to-Finish Pig Farms
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摘要 在资源环境约束日益趋紧的背景下,亟需探索提高我国生猪生产效率的有效路径。本文在理论探讨生猪养殖专业化分工效率发生机制的基础上,利用河北、辽宁和北京3个北方省份自繁自养型商品猪养殖场户调研数据,采用稳健OLS和分位数回归对养殖专业化分工的生产率效应及其差异性进行实证研究,并使用Bootstrap自助法和分组回归对结果进行了稳健性检验。研究发现:生猪养殖专业化分工对生产效率提升具有促进作用,但影响效应会因分工环节技术密集度和养殖主体技术水平的不同产生差异;商品猪养殖场户在生产效率较低或养殖规模较小时参与终端公猪精液生产环节分工能有效提升生产效率,但在生产效率较高或养殖规模较大时,需参与父母代母猪繁育环节分工才能获得生产效率的进一步提升。因此,健全完善生猪良种繁育体系并通过养殖专业化分工促进技术进步是提高我国生猪生产效率的有效路径,其加快实施需要提升从业者的专业素质及能力并推进标准化建设的协同配合。 It is urgent to explore the effective ways to improve pig production efficiency in China under the background of resources and environment constraints.Based on a theoretical analysis on the influence mechanism of specialized division of labor on the pig production efficiency,this paper mainly used robust OLS regression and quantile regression to analyze the productivity effect of specialized division and its difference of labor using the survey data of farrow-to-finish pig farms in three northern provinces and cities including Hebei,Liaoning and Beijing,bootstrap method and grouping regression were then applied to test the robustness of the results.The study found that:the specialized division of labor can improve the pig production efficiency,but its effect will be varied through the changes of technical density of links and the technical level of pig farms.When the production efficiency of pig farms is lower or the breeding scale of pig farms is smaller,participating in the division of labor in production of terminal boar semen is an effective way to improve the production efficiency,when the production efficiency is higher or the breeding scale is larger,it is necessary to participate in the division of labor in parent sows breeding to achieve further improvement of production efficiency.Therefore,improving the pig breeding system of fine breed and promoting the technical progress through specialized division of labor of pig breeding is an effective way to improve the production efficiency of pig breeding in China,and enhancing the professional quality and ability of pig farmers and promoting the construction of standardization are needed simultaneously.
作者 沈鑫琪 李秉龙 乔娟 SHEN Xinqi;LI Binglong;QIAO Juan(不详)
出处 《农业技术经济》 CSSCI 北大核心 2019年第4期71-83,共13页 Journal of Agrotechnical Economics
基金 项目来源:国家自然科学基金项目“基于市场导向的畜牧业标准化运行机理与绩效研究”(编号:71573257),现代农业产业技术体系北京市生猪产业创新团队产业经济岗位项目(编号:BAIC02).
关键词 生猪养殖 专业化分工 生产率效应 差异性 自繁自养 Pig breeding Specialized division of labor Productivity effect Difference Farrow-to-finish
作者简介 通讯作者:乔娟
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