Effect of Late Pregnancy, Parturition and Early Lactation on T3, T4and Cortisol Level of Heifers and Cows. UTJsci [Internet]. 2013 Feb. 26 [cited 2024 Dec. 26];3(4):34-40. Available from: http://mail.jsci.utq.edu.iq/index.php/main/article/view/511