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 Journal of Agriculture and Veterinary Science, [S. l.], v. 4, n. 4, 2024. DOI: 10.56286/y3e4fv72. Disponível em: https://journals.ntu.edu.iq/index.php/NTU-JAVS/article/view/1107.. Acesso em: 13 apr. 2025.