| one publication added to basket [133884] | Experimental techniques for preserving diatoms used as food for larval Penaeus aztecus
Brown Jr., A. (1971). Experimental techniques for preserving diatoms used as food for larval Penaeus aztecus, in: Proceedings of the National Shellfisheries Association 62. Proceedings of the National Shellfisheries Association, 62: pp. 21-25
In: (1971). Proceedings of the National Shellfisheries Association 62. Proceedings of the National Shellfisheries Association, 62[s.n.][s.l.], more
In: Proceedings of the National Shellfisheries Association. Economy Printing: Easton. ISSN 0077-5711, more
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| Keywords |
Cultures > Shellfish culture > Crustacean culture > Shrimp culture
Preserving
Marine/Coastal |
| Abstract |
The diatoms Skeletonema costatum and Thalassiosira sp were freeze-dried and fed to larval brown shrimp, P. aztecus, being reared to 1st stage mysis from 1st stage protozoa. Feeding levels ranged from 100,000-1,000,000 cells/ml. Both diatoms were also frozen, either in the presence or absence of the protectants glycerol and dimethyl sulfoxide. Frozen Skeletonema was suitable when frozen in the presence of protectants; Thalassiosira supported good growth of larval shrimp when frozen alone or with protectants. Although neither frozen nor freeze-dried foods were as good as live diatoms at equal concs, these foods may be used supplementally to eliminate complete dependence on live algal cultures. |
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