Bottrel M, Fortes T, Ortiz I, Hidalgo M, Dorado J. Short communication: Establishment and maintenance of donkey-in-mule pregnancy after embryo transfer in a non-cycling mule treated with oestradiol benzoate and long-acting progesterone. Span. j. agric. res. [Internet]. 2017Dec.30 [cited 2026Jul.31];15(4):e04SC01. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/11653