The activity of the lysosomal hydrolases, beta-glucoronidase/ EC., cathepsin B /EC.3.4.4.-/, cathepsin D /EC. and the leucine aminopeptidase /EC. was followed in the liver of two groups of mice, one selected for high body gain and unselected one. The activities of the estimated enzymes were distinctly higher in the liver of unselected mice, especially of proteases. The animals of both experimental groups were starved for 48 hours. After this period of starvation some changes in the behaviour of these enzymes were observed in both estimated groups. There was a distinct rise of the free, non-particel bound activity of proteases in both groups, followed by an increase of the total activity of all estimated enzymes. The observed changes were dee£ er in the group of unselected mice.

M. Schmidt, A Kolataja, T Krol, A Banasik, J Wypiorkiewicz

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 7. Symposia (1), , 100, 1982
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