Research output

Article in Journal ()

The effect of protein and lipid level on the specific dynamic action and post-prandial nitrogen excretion in subadult of white shrimp Litopenaeus vannamei

Alternative title El efecto del nivel de proteína y lípidos sobre la acción dinámica específica y la excreción postprandial en sub-adultos del camarón blanco Litopenaeus vannamei

Citation
Ponce-Palafox JT, Esparza-Leal HM, Arredondo-Figueroa JL, Martinez-Palacios CA & Ross L (2017) The effect of protein and lipid level on the specific dynamic action and post-prandial nitrogen excretion in subadult of white shrimp Litopenaeus vannamei, Revista de Biologia Marina y Oceanografia, 52 (1), pp. 131-141.

Abstract
The study aimed to evaluate the effect of 4 levels of dietary protein (20, 30, 40 and 50%) and lipids (2, 4, 8 and 16%) on the magnitude and duration of specific dynamic action (SDA) and postprandial nitrogen excretion in the subadult white shrimpLitopenaeus vannameiusing computer-controlled metabolic chambers (continuous-flow respirometer). We determined the oxygen consumption rate at 1 h intervals until the postprandial oxygen consumption rate returned to the pre-feeding level. Shrimp fed all the diets had significantly higher respiration rates after feeding due to the SDA. Oxygen consumption, the SDA coefficient and the SDA magnitude increased notably with increasing dietary protein content. Shrimp fed the 20% protein diet had the lowest levels of pre- and post-feeding respiration and the smallest SDA. A significant change in the SDA coefficient relative to each lipid level was not demonstrable. Additionally, nitrogenous excretion increased with an increase of dietary protein but not with an increase of lipid level. By estimating the SDA of subadults, the response to standard metabolic rate (SMR) was lower than that reported for juveniles and postlarva white shrimp.

Keywords
Oxygen; SDA; ammonia; shrimp; protein; lipid

StatusPublished
AuthorsPonce-Palafox Jesus T, Esparza-Leal Hector M, Arredondo-Figueroa Jose Luis, Martinez-Palacios Carlos A, Ross Lindsay
Publication date04/2017
Date accepted by journal21/12/2016
PublisherUniversidad de Valparaíso
ISSN 0717-3326
LanguageEnglish

Journal
Revista de Biologia Marina y Oceanografia: Volume 52, Issue 1 (2017)

© University of Stirling FK9 4LA Scotland UK • Telephone +44 1786 473171 • Scottish Charity No SC011159
My Portal