Morini, G. ., Tummaruk, P. ., Saleri, R. . and Rensis, F. D. . (2023) “Effects of chronic melatonin administration on pregnancy rate in dairy cows submitted to a fixed-time AI protocol during summer and winter seasons”, The Thai Journal of Veterinary Medicine, 52(4), pp. 775–780. available at: https://he01.tci-thaijo.org/index.php/tjvm/article/view/261514 (accessed: 16 December 2025).