Recursos Naturales >
Instituto de Investigaciones Marinas (IIM) >
(IIM) Artículos >
Closed Access item Lipid profile and growth of the clam spat, Ruditapes decussatus (L), fed with microalgal diets and cornstarch
|Authors:||Fernández-Reiriz, María José|
|Keywords:||Fatty acid, Lipid classes (sterol ester waxes, sterols, free fatty acids, triacylglycerols, phospholipids), Total lipid, Growth, Microalgal diets, Cornstarch, Clam spat|
|Citation:||Comparative Biochemistry and Physiology - B - Biochemistry and Molecular Biology 124(3): 309-318 (1999)|
|Abstract:||The influence of the lipid composition of microalgal diets and cornstarch on the lipid classes and fatty acids of Ruditapes
decussatus spat was studied. These aspects of the nutritional value of the diets are discussed in relation to the growth of the spat.
Cornstarch is rich in carbohydrate, but is deficient in protein and lipids. The microalgal cells contains lipid as well as protein and
carbohydrate. Tahitian Isochrysis cells contain phospholipids and triacylglycerols as majority lipids, whereas in the cornstarch
particles the more abundant lipids are free fatty acids and phospholipids.The n-3 fatty acids were the most abundant acids in the
microalgae whereas the n-6 fatty acids were in the cornstarch. The n-3 PUFA were not detected in cornstarch. Diets with a lipid
composition high in phospholipids and triacylglycerols and in essential fatty acids produce good growth rates in spat of R.
decussatus. However these elements alone are not sufficient to explain the quality of the diet for R. decussatus. In fact, the lipid
content of the diet affects growth, but does not explain it totally and it is the carbohydrates content that explains the differences
in growth found when we use diets with the same composition in lipids.|
|Description:||10 páginas, 6 tablas|
|Publisher version (URL):||http://dx.doi.org/10.1016/S0305-0491(99)00129-7|
|Appears in Collections:||(IIM) Artículos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.