title: [Modification of the quality indicators of the ejaculate of beagle dogs due to frequent collections over time].
abstract: Ejaculates from five adult beagle dogs were investigated for changes of spermatologic parameters. Semen was collected daily during 12 weeks. The parameters volume, sperm count, and transmigration rate (TMR) increased during the first three to five weeks and decreased in the middle of the experiment. The percentage of morphologically abnormal spermatozoa just exceeded 20% from the fifth to the seventh week and in the tenth week, respectively. Either the results remained on a low level (volume), or they returned to normal from the tenth week on (morphology, TMR, sperm count). Semen quality diminished after five weeks. It is concluded, that daily semen collections during more than five weeks can cause decreased libido, aspermia, and impairment of the conception rates.
authors.affiliation: Universitätsklinik für Geburtshilfe, Gynäkologie und Andrologie, Veterinärmedizinischen Universität in Wien.
authors.forename: S
authors.initials: S
authors.lastname: Schäfer
authors.forename: A
authors.initials: A
authors.lastname: Holzmann
authors.forename: K
authors.initials: K
authors.lastname: Arbeiter
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000209:etiology; D004285:Dogs / Q000502:physiology*; D004542:Ejaculation; D007248:Infertility, Male / Q000209:etiology / Q000662:veterinary; D007989:Libido; D008297:Male; D009845:Oligospermia / Q000209:etiology / Q000662:veterinary; D012661:Semen / Q000502:physiology*; D013048:Specimen Handling / Q000662:veterinary; D013076:Sperm Count / Q000662:veterinary; D013997:Time Factors