Capturing temperature changes on the ocular surface along with estrus and ovulation using infrared thermography in Japanese Black cows oleh Riho OZAKI, Seiji INOUE, Yuki YOROZUI, Rei ICHIKAWA, Naoki YAMADA, Seiya HIGASHI, Shuichi MATSUYAMA, Hiroko TSUKAMURA, Satoshi OHKURA, Yoshihisa UENOYAMA, Yasuhiro MORITA