Institute of Livestock and Grassland Science, NARO

Livestock Reproduction Group

In the management of dairy and beef cattle, the reduction of working hours is a major issue due to the aging of farmers and the increase in the number of cattle raised per household. In particular, labor saving in breeding management, which accounts for 20-30% of the total work time, is very important. Improving the conception rate of breeding cows, shortening the calving interval, and reducing calf mortality are also important to increase animal productivity.
The Livestock Reproduction Group will develop technologies that contribute to the efficiency of breeding management by analyzing in detail the physiological functions of the cattle reproductive cycle (estrus, ovulation, pregnancy, calving, and recovery of ovarian and uterine functions). In addition, we will develop methods to monitor breeding activities using sensing technologies such as cameras and wearable sensors. The new breeding management system is expected to reduce the burden not only on farmers but also on animals.