Journal Pre-proof Associations among thermal biology, preovulatory follicle diameter, follicular and luteal vascularities, and sex steroid hormone concentrations during preovulatory and postovulatory periods in tropical beef cows Jakree Jitjumnong, Tossapol Moonmanee, Paiwan Sudwan, Raktham Mektrirat, Maslin Osathanunkul, Chainarong Navanukraw, Julakorn Panatuk, Punnawut Yama, Wilasinee Pirokad, Warittha U-krit, Warunya Chaikol PII: S0378-4320(19)30534-2 DOI: https://doi.org/10.1016/j.anireprosci.2020.106281 Reference: ANIREP 106281 To appear in: Animal Reproduction Science Received Date: 7 June 2019 Revised Date: 11 December 2019 Accepted Date: 9 January 2020 Please cite this article as: Jitjumnong J, Moonmanee T, Sudwan P, Mektrirat R, Osathanunkul M, Navanukraw C, Panatuk J, Yama P, Pirokad W, U-krit W, Chaikol W, Associations among thermal biology, preovulatory follicle diameter, follicular and luteal vascularities, and sex steroid hormone concentrations during preovulatory and postovulatory periods in tropical beef cows, Animal Reproduction Science (2020), doi: https://doi.org/10.1016/j.anireprosci.2020.106281