ISSN:
1573-143X
Keywords:
Ascorbic acid
;
Broodstock
;
Fertilised eggs
;
Sea bass (Dicentrarchus labrax L.)
;
Sea bream (Sparus aurata L.)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The transfer of L-ascorbic acid (AA) from broodstock to the fertilised eggs and it's dynamics in embryos and fasting larvae, has been studied in sea bass (Dicentrarchus labrax L.) and sea bream (Sparus aurata L.). Two types of diets were fed to the broodstocks: one containing sufficient ascorbate for normal growth and the other with an extra addition of a very high dose (2,000 mg/kg feed) of ethyl-cellulose-coated L-ascorbic acid. The concentration of AA and total ascorbate (L-ascorbic acid plus dehydroascorbic acid) was detected through several embryo and larval development stages, including larvae just before feeding. In sea bass and sea bream, the mean (SD) concentration of total ascorbate in fertilised eggs originating from broodstock fed AA supplemented diet, was 218.5 (17.7) and 122.4 (5.1) μg/g wet weight respectively. This was significantly higher (P 〈 0.01) than the unsupplemented groups, which contained only 155.9 (6.9) and 103.9 (3.5) μg/g wet weight respectively. A diet with a vitamin C content adequate for normal growth, may not be sufficient for broodstock when the goal is transfer of TAA to embryos. © Rapid Science Ltd. 1998
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1009237022692
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