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  • I L Tarvid
  • Comparative biochemistry and physiology. A…
  • 1992
1. Early development of peptide hydrolysis in the digestive tract was investigated in experiments with fasted and fed ad lib. chicks during the first decade of postnatal period. 2. Pancreatic carboxypeptidase A (CPA) activity was maximal at the moment of hatch. On the second day CPA activity considerably diminished in starved and fed animal groups; further(More)
  • I L Tarvid
  • Comparative biochemistry and physiology. A…
  • 1991
1. To characterize the development of peptide hydrolysis the activities of pancreatic carboxypeptidase A (CPA) and intestinal glycylleucine dipeptidase (GLDP) were registered in 1-45 days old chicks, as well as GLDP activities in newborn and adult guinea pigs. 2. The highest values of CPA and GLDP relative activities were found immediately after hatching,(More)
1. Two experiments were performed on broiler chicks to determine the effect of either quantitative feed restriction (QFR) from 5 to 11 d of age or meal-feeding (MF) from d 5 to 17 on development of activity of enzymes associated with protein digestion. 2. Proteolytic activity of the proventriculus was reduced by QFR but unaffected by MF. 3. General(More)
Studies have been made of changes in catalytic activity and regulatory properties of membrane and intracellular glycyl-valine dipeptidase from the small intestine of chicks ageing from 1 to 40 days. Gradual decrease in the activity of membrane glycyl-valine dipeptidase was found during postnatal life together with formation of proximodistal gradient in the(More)
Preparations of chicken small intestine were used in the experiment in vitro simulating processes of membranous digestion (inverted intestinal segments) and absorption (inverted intestinal myasis). It was established that lysozyme was hydrolyzed on the internal mucosa surface regardless of its concentration in the gastro-intestinal tract, and only(More)
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