Study of progesterone level during first trimester of pregnancy in cows. University of Thi-Qar Journal of agricultural research, [S. l.], v. 11, n. 1, p. 26–29, 2022. DOI: 10.54174/utjagr.v11i1.156. Disponível em: https://jam.utq.edu.iq/index.php/main/article/view/156.. Acesso em: 21 nov. 2024.