中文摘要：

受养殖成本和养殖目的约束,现阶段非专业肉牛养殖仍然处于标准化、规模化、专业化比较低的水平。与此同时,进城务工等机会成本提高、专业化养殖门槛提高和机械化水平提高的影响使得非专业养殖者不断退出肉牛养殖产业成为趋势。退出并非一蹴而就、整齐划一的行为。根据实地调研和理论分析,本文将退出路径大致分为4类：专业化养殖、维持养殖现状、跨业养殖、完全退出。通过对散户特征和退出路径的梳理归纳,有针对性、选择性的制定政策,帮助非专业养殖者有序退出、适度规模化发展将对肉牛产业健康发展大有裨益。

英文摘要：

By the cost of breeding and breeding objective constraints, the present stage of non professional farmers farming is still in the standardization, scale specialization of relatively low level. At the same time, migrant workers the opportunity cost increase, raising the threshold of specialized farming and mechanization level to improve the effect of the substitution effect of beef cattle breeding, non professional breeders continue to exit the beef cattle breeding industry has become a trend. Exit is not accomplish at one stroke, uniform behavior. According to the on-the-spot investigation and theoretical analysis, the exit path is broadly divided into four categories： professional breeding, maintain, cross breeding, breeding situation completely exit. By induction on the retail characteristics and exit path＇s combing, targeted and selective policy to help non professional farmers orderly exit, moderate scale development of the beef cattle industry the healthy development of great benefit