[Aerogenous immunostimulation of weaner swine against experimentally induced respiratory infections with Pasteurella multocida]. / Aerogene Immunstimulationen von Läuferschweinen gegen experimentell induzierte respiratorische Infektionen mit Pasteurella multocida.

The clearance of Pasteurella, Bordetella and Haemophilus from the lung of weaners was increased by aerogenous immunostimulations using a lysate mixture consisting of 12 strains of 8 bacterial species, as well as live and inactivated temperature sensitive mutants of Pasteurella multocida. The severity of experimental pneumonias caused by Pasteurella has also been decreased by this treatment. The effect of the lysate was shown to be unspecific and short, as antibody production against Pasteurella was not induced and no booster effect of subsequent aerogenous immunizations with Pasteurella antigens could be detected.

[Enzymatic protein hydrolysate as the N-source for cell culture]. / Enzymatische Eiweisshydrolysate als N-Quelle für Zellkulturen.

Supplement T, a preparation for cell culture growth, is just as effective as commercially available tryptose. It has met high demands throughout its application over six years under conditions of large-scale production of permanent cell lines. Supplement B has been used with good success in commercial production for breeding of FMD virus in BHC cells of IBR/IPN and PI-3 viruses in calf kidney cells cultures and of embryonic duck fibroblast cell cultures for production of vaccines against Marek's disease.