title: [Effect of temperature on proteinase activities in the intestinal chyme and the mucosa of various ecological fish groups].
abstract: Effect of temperature on activities of proteinases in intestinal chyme and mucosa was studied in three fish species (pike-perch, zope, roach) belonging to different ecological groups by their type of feeding. There was revealed a significant difference of dependence of enzyme activities in chyme on temperature in the benthophage roach (a higher level of relative activity in the zone of lower temperatures and a larger zone of temperature optimum) as well as of values of apparent energy of activation of the protein hydrolysis process as compared with that in plankto- and ichthyophages--zope and pike-perch, which indicates a significant effect of the enteral microbiota proteinases and of nutrition objects on characteristics of hydrolases functioning in fish intestine.
authors.forename: V V
authors.initials: VV
authors.lastname: Kuz'mina
authors.forename: E G
authors.initials: EG
authors.lastname: Skvortsova
authors.forename: M V
authors.initials: MV
authors.lastname: Shalygin
mesh_terms: D000818:Animals; D010450:Endopeptidases / Q000378:metabolism*; D004789:Enzyme Activation; D029941:Fish Proteins / Q000378:metabolism*; D005399:Fishes / Q000378:metabolism*; D005766:Gastrointestinal Contents / Q000201:enzymology*; D007413:Intestinal Mucosa / Q000201:enzymology*; D013696:Temperature
chemical_list: D029941:Fish Proteins; D010450:Endopeptidases