Existence and coexistence of catecholamine-synthesizing enzymes and some neuropeptides in nerve fibres supplying the bovine ovary and its blood vessels

analyse histocytologique blood vessels bovin bovini catecholamines catecolaminas catecolamine cattle dopamina dopamine enzimas enzimi enzyme enzymes ganado bovino histocytological analysis madurez sexual nerf nerves nervi nervios ovaie ovaire ovaries ovarios sexual maturity somatostatin somatostatina somatostatine tirosina tyrosine vaisseau sanguin vasi sanguigni