中文摘要：

基于生猪成本收益的相关数据，探讨在散养、小规模、中规模、大规模4种生猪养殖模式下生猪成本、收益及其发展趋势；利用DEA模型Malmquist指数法方法，分析4种生猪养殖模式和年平均全要素生产率情况。通过研究，得出基本结论：（1）规模养殖模式具有成本优势；（2）中、小规模的养猪利润和技术效率高；（3）生猪生产具有波动性，面临全要素生产率降低的困境；（4）散养模式利润波动大，规模养殖模式利润稳定。并提出对策：（1）强化成本控制与管理，降低养殖成本；（2）发展适度规模养殖，提高生猪养殖门槛；（3）提高生猪品质，增强养殖经济效益；（4）提高生猪产业化水平，提升抗风险能力。

英文摘要：

Based on data on costs and benefits of the four pig feeding modes which include free range,small scale, medium scale, and mass scale, theirs costs, benefits and development trend were summarized, and their total factor productivity and the average annual total factor productivity were analyzed by using the Malmquist index method of DEA model.A number of basic conclusions were reached ： （ 1 ） The scale feeding mode enjoys a cost advantage ; （2） The medium and small scale pig feeding modes boast high profits and technical efficiency ; （3） Volatile is a potential threat to the production of live pigs which is confronted with the plight of decreasing total factor productivity; （4） The free-range mode suffers a huge volatility of profits while the scale feeding mode brings in stable profits.Finally, some corresponding countermeasures were put forward to improve the pig breeding level and benefits ： （ 1 ） To strengthen cost control and management and lower the cost of investment; （2） To develop moderate scale management in order to take consideration of benefits and risks; （3） To improve pig breeding quality and enhance its economic benefits;（4） To improve the industrialization level of live pigs breading and strengthen the ability to resist risks.