期刊
FISH PHYSIOLOGY AND BIOCHEMISTRY
卷 37, 期 3, 页码 345-353出版社
SPRINGER
DOI: 10.1007/s10695-010-9426-3
关键词
pH; Intestinal mucosa; Chyme; microbiota; Amylolytic activity; Proteolytic activity; Fish
资金
- Russian Foundation for Basic Research [06-04-48170, 09-04-00075]
It is shown that amylolytic and proteolytic activity of the intestinal mucosa, the chyme and the intestinal flora in the fishes, zander Zander lucioperca (L.), perch Perca fluviatilis L., bream Abramis brama (L.) and roach Rutilus rutilus (L.), belonging according to their feeding habits to different ecological groups at the same pH values as well as in the pH range from 5.0 to 10.0 considerably varies. The glycosidase pH optimum of the mucosa and intestinal microbiota is 7.0, whereas that of the chyme varies from 6.0 (in roach) to 8.0 (in bream). pH optimum of the mucosa proteinases in all fish species is 10.0, whereas that of the chyme and the bacterial flora can be observed in all the range of pH values.
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