Joachim Wiegmann

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wurde die E inwi rkung phys iographischer Fak to r en auf Einzelt iere oder auf mehrere Tiere der gleiehen Ar t un te r such t ; es wurde getes te t , innerha lb welcher T e m p e r a t u r s p a n n e eine Ar t lebensf/~hig ist, innerha lb welchen Salzgehal tsbereiches sic fortpflanzungsf/~hig is t usw. ; es wurde also die ar tspezif ische Reakt ion auf(More)
The immune response after vaccination with infectious bronchitis virus (IBV) under field conditions was measured by the ELISA, haemagglutination-inhibition (HI) and agar-gel precipitin (AGP), tests. Vaccinations were performed in three flocks and one experimental group via the drinking water with the vaccine strains H 120 and H 52. In each flock 40 random(More)
A total of 164 fatty nitrogen compounds, consisting of quaternary ammonium compounds, alkylamines, N-alkyl-1, 3-propylene diamines, substituted amino hydroxystearonitriles, substituted amino hydroxystearyl amines, and nitrogen-containing surfactants, were screened for bacteriostatic, fungistatic, and algistatic activity. The most active compounds were(More)
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