Prediction of the body condition with free grazing cattle by the GPS

Most of the cattle were domesticated by humans at some point while living freely in the wild and being raised as a source of nutrients, including protein Therefore, domesticated since, until now most of the specifications for managing research productivity the main part, the study emphasizes economic efficiency aspects In such a state of nature, breeding and management of grazing, many difficulties will follow. In consideration of beef cattle production and current issues with regard to dairy farming houses, grazing is regarded as an appropriate raising method in terms of saving work force, treating night soil, and animal welfare. Accordingly, a lot of effort is expected to be put forth into proper rearing and especially propagation in a grazing condition. When an artificial insemination is chosen instead of natural one in a grazing land, it is necessary to recognize the estrus in a timely manner and induce pregnancy Accordingly, this study includes the tracking and grasping of movement of the breeding cattle called 'Black Cattle' and ‘Korean Cattle’ grazed 24 hours a day around the year at a farmhouse in Japan by means of GPS in order to estimate changes in body conditions.