Variations in the coding of melatonin receptor gene MTNR1A of Iraqi sheep breed: Rahawy, M. A.1; Al-Timimi, I. H.2 , Najwa, Sh. Ahmad3 and Ani A.A4. Iraqi J. Vet. Med. 2017;41(1):98-103. doi:10.30539/iraqijvm.v41i1.89