| Based on backyard hog data in 1980-2012,this paper used Minot welfare model to measure the shortterm and long-term production welfare of backyard hog farmers, and analyzed the law of the change of production welfare and the factors that influenced it. The results showed that, the trend of fluctuations of short-term welfare and long-term welfare was exactly the same, and long-term production welfare was over short-term but the difference was not obvious.Hog price was the factor that directly affected the production welfare of backyard farmers, and the fluctuation change was much greater at the turning point of price trend. The inputting quantity of grain consumption was a indirect factor affecting the production welfare of backyard farmers by influencing the hog production. |
