Submicroscopic changes of secretory cells of oviduct epithelium of cows during the cycle

anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal domestique animal laitier animal pour cuirs et peaux animales animales de carne animales lecheros animals artiodactyla artiodactyle body parts bovidae bovide bovin bovine bovines cattle cell structure ciclo estral citoplasma cows cycle oestral cytoplasm cytoplasme cytoplasmic organelles domestic animals endoplasmic reticulum epitelio epithelium estructura celular female genital system fisiologia fonction physiologique ganado ganado bovino livestock mammals meat animals oestrous cycle organite cellulaire oviducte oviductos oviducts partes del cuerpo partie du corps physiological functions physiologie physiology protoplasm protoplasma protoplasme reproduction rumiante ruminant ruminants sistema urogenital structure cellulaire ultraestructura ultrastructure urogenital system vaca vache vertebrados vertebrates vertebre