[Concentration of ions of selected trace elements in the ejaculates of boars after interruption of the flow of the secretion from the testes, epididymis and accessory sexual glands].

The investigations were carried out on 6 boars aged from 10 to 12 months. Before operation, 5 ejaculates were collected from each animal. In the second stage of the investigations, the boars were subjected to the following procedures: the deferent ducts were cut and ligated, and the bulbo-urethral glands and vesicular glands were removed. Four to 28 ejaculates were collected after each operation. The ejaculates obtained at the individual stages of the experiments were subjected to the following tests: introductory assessment, concentration and morphology of spermatozoa, and biochemical investigations concerning the concentration of Mn, Co, Cd, Fe, Cr, Ni, Sr, Ag and Li. The authors proved that the secretions from the individual segments of the reproductive organ of the boar are different in respect of their biochemical composition. The secretion of the testicles and epididymides determines the concentration of Mn, Cd and Cr in the ejaculate of the animals. The level of Mn and Fe seems to be largely influenced by the secretion from the vesicular glands and deferent ducts. The secretion of the prostate and urethral glands is responsible for the level of Cr and Ni in semen plasma, and also for the concentration of Mn, Ca and Fe. The concentration of Fe in the semen of boars distinctly depends on the presence of spermatozoa and of the secretion of the bulbo-urethral glands. The AAS method failed to detect traces of Ag and Li in the ejaculates of these boars; Co was present in vestigial amounts only.