Observation on testes, accessory glands and sperms of a Shetland pony stallion

anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal de travail animal domestique animales animales de trabajo animals body parts caballo de silla caballos cheval cheval de selle domestic animals endocrine glands equidae espermatozoo fisiologia fonction physiologique gametes gametos ganado glande endocrine horses livestock male genital system mammals partes del cuerpo partie du corps perissodactyla physiological functions physiologie physiology poney ponies reproduction saddle horses sistema genital masculino sistema urogenital spermatozoa testes testicule urogenital system vertebrados vertebrates vertebre working animals