title: Meiosis in interspecific equine hybrids. I. The male mule (Equus asinus X E. caballus) and hinny (E. caballus X E. asinus).
mesh_terms: D000818:Animals; D002875:Chromosomes; D005260:Female; D006736:Horses; D006824:Hybridization, Genetic; D007246:Infertility / Q000235:genetics / Q000662:veterinary*; D007621:Karyotyping; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D008540:Meiosis; D008854:Microscopy, Electron; D010527:Perissodactyla; D012661:Semen / Q000032:analysis; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure; D013737:Testis / Q000502:physiology / Q000648:ultrastructure