title: Surface morphology of the spermatozoa in infertile Welsh ponies.
mesh_terms: D000818:Animals; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D007248:Infertility, Male / Q000473:pathology / Q000662:veterinary*; D008297:Male; D008854:Microscopy, Electron; D008870:Microtubules / Q000648:ultrastructure; D013082:Sperm Tail / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure*