Ahmed M, Rahman M, Bhattacharjee J, Bhuiyan M. Ultrasound guided diagnosis of anoestrus and its treatment in postpartum crossbred Holstein-Friesian cows. Bangl. vet. [Internet]. 2019 Dec. 31 [cited 2025 Sep. 3];36(1-2):33-41. Available from: https://www.banglajol.info/index.php/BVET/article/view/55748