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改革开放以来,我国居民的膳食结构发生了巨大变化,如主粮消费显著减少,肉奶蛋消费迅速增加.30年来,我国居民年人均口粮消费减少了47%,而动物性食品消费增加了160%;伴随而来的是在粮食消费结构中,居民口粮占比逐年下降,而饲料用粮消耗逐年增多,2012年饲料粮占我国粮食总产量的40%[1,2].这意味着,我国“粮食安全”的本质已演化成饲料粮的不足.然而,我国农业结构和生产方式并未适应这一变化,政府依然强化口粮生产,而忽视动物饲料粮的供应问题.
Since the reform and opening up, the dietary structure of Chinese residents has undergone tremendous changes, such as a significant reduction in staple food consumption and a rapid increase in consumption of meat, eggs and eggs. In the past 30 years, the annual per capita consumption of food in our country has been reduced by 47% while animal food consumption has increased by 160% ; Accompanied by the structure of food consumption, the proportion of residents rations decreased, while the consumption of food for feed increased year by year, feed grains accounted for 40% of China’s total grain output in 2012. [1,2] This means that our country However, the agricultural structure and mode of production in our country have not been adapted to this change, and the government still strengthens the production of rations but neglects the supply of animal feed grains.