Abstract:
:The activities of several digestive enzymes during larval development of the spotted sand bass (Paralabrax maculatofasciatus) were evaluated using electrophoretic techniques. The results show the presence of three isoforms of alkaline protease from day 2 after hatching (ah) and the early appearance of one pepsin-like band from day 12 ah onwards. In addition, two lipase bands first appeared on day 2 ah, and there was a change in the molecular weight of one band from day 15 ah onwards. Several alpha-amylase isoforms were observed from hatching up to day 5 ah. These results indicate that the important digestive enzymes develop rapidly in these larvae, supporting the possibility of early weaning at day 12 ah using artificial diets.
journal_name
Fish Physiol Biochemjournal_title
Fish physiology and biochemistryauthors
Alvarez-González CA,Moyano-López FJ,Civera-Cerecedo R,Carrasco-Chávez V,Ortíz-Galindo JL,Nolasco-Soria H,Tovar-Ramírez D,Dumas Sdoi
10.1007/s10695-008-9276-4subject
Has Abstractpub_date
2010-03-01 00:00:00pages
29-37issue
1eissn
0920-1742issn
1573-5168journal_volume
36pub_type
杂志文章abstract::Spermiation and changes in androgen (testosterone, T and 11-ketotestosterone, 11-KT) levels were studied in sterlet (Acipenser ruthenus) treated with GnRH agonist implants (DAla(6)-Pro(9)-LHRHa) at 25 and 75 μg kg(-1) b.w. and compared with those males treated with 4 mg kg(-1) b.w. of carp pituitary extract (CPE) and ...
journal_title:Fish physiology and biochemistry
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abstract::The toxic effects of thyroxine (T4F), levothyroxine (L-T4), and thyroxine complexed into β-cyclodextrin (β-CD-T4) on the biological parameters of tambaqui (Colossoma macropomum) were evaluated. The animals were exposed to a chronic toxicity test based on concentrations of influent (60 ng/L) for 2 months. Weight, total...
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journal_title:Fish physiology and biochemistry
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journal_title:Fish physiology and biochemistry
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journal_title:Fish physiology and biochemistry
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journal_title:Fish physiology and biochemistry
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journal_title:Fish physiology and biochemistry
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