Genetics aspects of reproductive performance for Holstein: Al-Samarai F.R .Al-Anbari N.N . and Al-tmimi Y.K. Iraqi J. Vet. Med. [Internet]. 2006 Dec. 31 [cited 2024 Dec. 22];30(2):95-107. Available from: https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/821