[Swine cell sublines with different ploidies. II. Kinetics of population growth]

The growth rate and the protein level of two swine cell sublines, one of them with a diploid and the other with a tetraploied level of chromosomes, were studied during 96 hours at 37--38 degrees C. Both of them showed similar growth rates, although the cell number of the diploid cell subline had been higher than the tetraploid cell subline on the first observation at 24 hours. On the other hand the diploid cell subline showed lower protein level than the tetraploid cell subline.