改革开放以来,随着我国国民经济的全面、快速发展,人民生活水平不断提高,对食物的的要求也越来越高,从满足于温饱改变为要求食物具有营养性和独特的风味,由植物型转向动物型,从而促进了畜牧生产的大发展。尤其是近十年来,随着人们对畜牧业认识的提高, Since the reform and opening up, with the comprehensive and rapid development of our national economy, the living standards of the people have been constantly increasing and the demands on food have also been getting higher and higher. From satisfying the changes in food and clothing to requiring nutritious and unique foods, Type steering animal type, thus contributing to the great development of animal husbandry. Especially in the last decade, with the improvement of people’s understanding of animal husbandry,