Factors affecting weight at first service of Holstein Friesian heifers born and reared in a tropical environment. Yemeni Journal of Agriculture & Veterinary Sciences, [S. l.], v. 7, n. 1, p. 9–15, 2026. DOI: 10.70022/yjavs.v7i1.3004. Disponível em: https://journal.tu.edu.ye/index.php/yjavs/article/view/3270. Acesso em: 25 jun. 2026.