摘要
随着中国畜牧业的大力发展,肉猪饲养和禽类的养殖数量已经达到世界第一位,肉牛生产也不甘示弱,近年来,中国牛肉数量仅仅少于美国和巴西,2009年我国牛肉产量已经达到635.5万t,并且呈逐年增长的趋势。但是环境专家研究数据表明,畜牧业养殖产生的温室气体排放量占世界温室气体排放总量的18%以上,所以引起越来越多的人更加关注畜牧业对环境的影响,畜牧业养殖给人们带来了巨大挑战:提高肉牛的养殖效率(饲料转化率),引进和培育优良的品种,进行合理的发展可持续生态养殖,解决当前阻碍畜牧业发展的疾病预防控制。
With the vigorous development of China's livestock,hog raising and poultry farming have reached the number one of the world, beef cattle production to be outdone,only less than the amount of beef in America and Brazil. In 2009, beef production in China reached 6. 355 million ton, and the trend of increasing year by year. But environmental experts research data showed that animal husbandry breeding produced gas emissions account for more than 18% of the world's greenhouse gas emissions, so more and more people paid more attention to the animal husbandry of the impact on the environment. Livestock farming had brought great challenges to persons:improve the breeding of beef cattle efficiency (feed conversion ratio) ,introduction and cultivation of good varieties,the rational development of sustainable eco-farming, solve disease prevention and control which was the current obstacles of animal husbandry development.
出处
《黑龙江农业科学》
2013年第1期74-77,共4页
Heilongjiang Agricultural Sciences
关键词
现状
生态养殖
环境
品种选育
疾病防治
status
ecological farming
environment
breeding
disease control and prevention