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Assessment of digestive enzymes activity during the fry development of the endangered Caspian brown trout Salmo caspius
Author(s) -
Zamani A.,
Hajimoradloo A.,
Madani R.,
Farhangi M.
Publication year - 2009
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2009.02348.x
Subject(s) - biology , salmo , hatching , brown trout , enzyme , yolk , digestive enzyme , resorption , endangered species , zoology , enzyme assay , fishery , anatomy , medicine , endocrinology , fish <actinopterygii> , ecology , biochemistry , amylase , habitat
The study of digestive enzymes activity at Salmo caspius fry showed that enzymes were available at the moment of mouth opening on the first day post hatching (dph) and the activity of enzymes showed no significant difference from the hatching day 28 dph. An increased activity was seen between 32 and 43 dph and this activity was significantly higher than the activity during the first 28 days. In the primary stages after yolk sac resorption (43–58 dph), enzymes activity showed an increased profile, however none of them showed a significant difference between 43 and 58 dph.