| Autor: |
C. R. Mock, Clark T. Fontaine, Dickie B. Revera |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
Proceedings of the World Mariculture Society. 11:102-117 |
| ISSN: |
0748-3260 |
| DOI: |
10.1111/j.1749-7345.1980.tb00103.x |
| Popis: |
Preliminary observations on the larval culture of Penaeus stylirostris using modifications of the “Galveston Laboratory” technique included: 1) installing airlift pumps in spawning tanks; 2) treating water with ethylenedinitrilo tetra-acetic acid, disodium salt (EDTA); 3) using small UV germicidal lamps to eliminate contaminationg dinofla-gellates from hatchery tanks; and 4) testing the use of two forms of bakers' yeast (Saccharomyces cerevisiae), compressed cake and active dry yeast (ADY), as replacement for frozen algae as larval foodstuff. The design of the spawning tank helped to increase the hatching of fertile eggs from 0% to 80%. It was shown by bioassay testing that the UV light eliminated the dinoflagellate and that direct treatment of hatchery water with the germicidal lamp had no apparent detrimental effect on foodstuff or shrimp larvae. Bakers' ADY appeared to be more readily accepted than compressed yeast cake by shrimp larvae as foodstuff and was easier to prepare and monitor. Although yeast was an efficient replacement for frozen algae as foodstuff for larval shrimp, it took slightly longer for the total populations to metamorphose to post-larvae when yeast was fed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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