机译:Use of a commercial indoor positioning system for monitoring resting time and moving distance in group-housed dairy calves
Hokkaido Univ;
Furukawa Elect Grp;
dairy calves; indoor positioning system; lying time; moving distance; EAR-ATTACHED ACCELEROMETER; FEEDING-BEHAVIOR; LYING BEHAVIOR; MANAGEMENT; MORTALITY; RESPONSES; INDICATORS; MORBIDITY; LEVEL;