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Zusammenfassung Es wurde versucht, mit der Einstichinjektionsmethode und durch Lymph-stauung die Anfange der Lymphgefase im Hoden verschiedener Haustiere auf-zufinden. Es war in keinem Fall moglich, Lymphgefase zwischen den Samenkanalchen festzustellen. Weite, klappentragende Lymphgefase traten erst in den kapselnahen Abschnitten der Septula testis und in der Tunica albuginea, also in dem aus kollagenem Bindegewebe bestehenden Interstitium des Organes auf. Summary The internal lymphatic system of the tests The author sought by injection and by producing lymph statis to determine the origin of the lymphatic vessels in the testes of different domestic animals. In no case was it possible to demonstrate lymphatic vessels between the seminiferous tubules. Wide lymph vessels containing valves were first encountered in the portions of the Septula testes near the capsule and in the Tunica albuginea, that is to say in the collagenous connective tissue which constitutes the interstitial fabric of the testes. Resume Le systeme lymphatique interne du testicule On essaya de trouver par le methode d'injection et par retention de la lymphe, l'origine des vaisseaux lymphatiques dans le testicule de divers ani-maux domestiques. On ne put en aucun cas constater de vaisseaux lymphatiques entre les canalicules seminipares. Des vaisseaux larges, munis de valvules, apparurent seulement dans les parties proches des septula testis et dans la tunique albugineuse, c'est a dire dans le tissu interstitiel collagene de l'organe. Resumen El sistema linfatico interno del testiculo Con ayuda del metodo de inyeccion punzante y mediante estasis linfatica se intento descubrir los origenes de los vasos linfaticos en los testiculos de diversas especies animales domesticas. En ningun caso resulto posible encontrar vasos linfaticos entre los canaliculos seminiferos. Vasos linfaticos amplios, provistos de valvulas, solo aparecian en los tramos proximos a la capsula de la septula teticular y en la tunica albuginea, o sea en el intersticio del organo formado por tejido conectivo colageno.

The innervation pattern in the buffalo testis was determined by using histochemical and immunohistochemical methods. Nerves were concentrated in the tunica albuginea and septula testis, and did not show an uniform distribution. The tunica albuginea at the lateral and medial sides and at the free border of the testis is most densely innervated than at the epididymal border. At the cranial pole thick nerve bundles were observed between albugineal vessels and muscle bundles. Rare parenchymal nerves were found in perivascular position between seminiferous tubules and their occurrence is confined to lobules at the cranial and caudal testicular poles. An intense NPY immunoreactivity occurred in nerve bundles and in solitary varicose fibres. Nerves were concentrated in the tunica albuginea at the lateral and medial side and at the free border of the testis, and in the lobules at the cranial and caudal testicular poles. Sub P immunoreactivity was occasionally detected in some thicker nerve bundles and solitary fibers, in the tunica albuginea and in the wall of blood vessels, showing a similar distribution but less intensity and density than NPY immunoreactivity. TH immunoreactivity stained nerve fibers in the buffalo testis with a distribution pattern similar to that obtained with general neuronal markers. The histochemical reaction for AchE was negative, so cholinergic fibers cannot be detected in the buffalo testis. The histochemical NADPHd reaction stained rare nitrergic nerve bundles and solitary fibers. The majority of NADPHd activity was confined to the vascular endothelium, and rarely to the interstitial Leydig cells, whereas the Sertoli and germ cells did not show any reaction.