We conducted a questionnaire and an interview about job satisfaction, which targeted 4 large-scale pig farm corporations in Japan. First, when we compared each corporation, the results showed that the more employees who had career aspirations, the higher the job satisfaction score. Next, when we compared by career aspiration, employees with career aspirations had a higher satisfaction score in every corporation. In addition, when comparing workers with career aspirations to workers who want to work long-term, there was a relation between their results. Considering the analyzed results of each question about job satisfaction, there was a significant difference among corporations. These results indicate that improving human resource management systems while considering the differences among the levels of job satisfaction can not only improve employees’ job satisfaction but also have an effect on the securement of the number of employees who aspire for promotion and on employees’ motivation for long-term service.
