抄録
The purpose of this study was to clarify the impact of the distance from stables to feed producing fields for a large-sized calf-raising farm. For that purpose, we surveyed large-sized calf-raising farms and performed a simulation using a linear programming model that takes into account daily traveling times and costs. The main findings of this study are as follows :
First, it’s necessary to have about thirteen hectares of fields that are about 0.4 hectares in size that are less than a kilometer from a stable to establish large-sized calf-raising farms that yield a high income and have a high average level of feed self-production.
Second, in the case when calf prices are down, it’s necessary for the farm to attain feed self-production. If fields are 0.4 hectares in size, it is important to amass fields that are less than three kilometers from the stable.
The results show that fields for feed production should be less than 3 kilometers from the stable. It is important to adjust land use in rural areas to establish large-sized calf-raising farms that yield a high income and have an advantage for feed self-production.
