TMRセンターへの加入が大規模酪農経営の牛乳生産費に及ぼす影響

―北海道におけるTMRセンターを対象に―

抄録

This study aims to consider the impact of TMR centers on input-output and milk production costs in large scale dairy farming. The main outcomes are as follows. First, the scale expansion of dairy farming reduces the rate of milk production per cow and feed efficiency. Second, the participation in a TMR center that includes small-scale dairy farming increases feed efficiency and reduces milk production costs of large-scale dairy farming.