title: [The effect of the sperm collection rhythm on the sperm production of insemination bulls in subtropical climate conditions].
abstract: A contribution is presented towards stabilizing the sperm production of A. I. bulls under subtropical conditions. The results are outlined of a production experiment on the influence of different sperm collection frequencies on the sperm production as found in 48 insemination bulls of a central bull station in the Syrian Arab Republic in the course of one year. It was found that a rhythm of 2 collections per bull and week provides favourable conditions for a stable and high-level sperm production.
authors.affiliation: Wissenschaftsbereich Physiologie und Pathologie der Fortpflanzung landwirtschaftlicher Nutz- und Haustiere, Berlin, DDR.
authors.forename: W
authors.initials: W
authors.lastname: Hartwig
authors.forename: E
authors.initials: E
authors.lastname: Hartwig
authors.forename: M
authors.initials: M
authors.lastname: Manzelgy
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D012661:Semen / Q000502:physiology*; D013048:Specimen Handling / Q000662:veterinary*; D013091:Spermatogenesis / Q000502:physiology*; D013593:Syria; D014329:Tropical Climate
vernacular_title: Untersuchungen zum Einfluss des Absamrhythmus auf die Spermaproduktion von Besamungsbullen unter subtropischen Klimabedingungen.