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随着社会经济的发展和人民生活水平的提高,国内外市场对猪肉及其产品的需求量越来越大,而猪是耗粮型家畜,这就需要提供更多的粮食来支撑养猪业的发展。据联合国世界粮食计划署发布的2010年粮食安全风险指数显示,中国被列为“中度风险”国家,排名96位。因此,近年来科学家们围绕“避免人畜争粮矛盾激化和降低养猪生产成本”这一核
With the development of the society and economy and the improvement of people’s living standard, the domestic and international market demand for pork and its products is increasing, while pigs are consumption-type livestock, which requires more food to support the pig industry development of. According to the 2010 food security risk index released by the United Nations World Food Program, China is listed as a “moderate risk” country, ranking 96th. Therefore, in recent years, scientists have been concentrating on the core of “avoiding the intensification of conflict between husband and wife in fighting for food and reducing the cost of pig production”