The Effect of Ewe’s Age and The First Birth On Sex Lamb , Type of Birth , Litter Size And the Lamb’s Weight at Birth and some Genetic Parameters. NTU-JAVS [Internet]. 2024 Dec. 28 [cited 2025 Jan. 6];4(4). Available from: https://journals.ntu.edu.iq/index.php/NTU-JAVS/article/view/1107