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Activities of twelve hydrolytic enzymes in the digestive tract of young rabbits before weaning (4 weeks old) and adult rabbits (3 months old) were measured. The principal digestive enzymes in both groups of rabbits appeared to be amylase (EC 3.2.1.1), maltase (EC 3.2.1.20), pectinase (EC 3.2.1.15) and proteinases. The stomach of young rabbits contained most(More)
A mixture of L-(U-14C) amino acids was added to cultures of 11 strains of rumen anaerobic fungi belonging to Neocallimastix frontalis, Neocallimastix joyonii, Sphaeromonas communis and Piromonas communis. Fungi were grown in a complex medium with glucose for 4 days. The radioactivity was found in cellular protein (27.7-65.3% of the total radioactivity(More)
This study presents data on the age changes of hyaluronidase activity in epididymal secretion as well as the presence of fructose and citric acid in vesicular glands (glandulae vesiculares) secretion. The results of age changes in the amount of epididymal secretion and its spermatozoa concentration in the Podolsky plant type bulls of the Ukrainian(More)
Previously we have established in vitro that, in the skeletal muscles of cattle of various ages, alanine and leucine were utilized not only in protein synthesis, but that their carbon metabolites also played an important role in substrate supply for lipid synthesis and tricarboxylic acid cycle (Vovk and Yanovich, 1990, Biokhimia, 55, 11, 2090-2094).(More)
OBJECTIVE Main function of the trace element selenium is the protection of the body against free radicals by means of the selenium-containing enzyme glutathione peroxidase acting as an intracytoplasmatic antioxydant. This study determined serum selenium concentration in dogs and cats from West Pomerania, Poland, and West Ukraine (Lviv region). MATERIAL(More)
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