TY - JOUR
T1 - Evaluation of commercial and natural food in experimental cultures of white shrimp based on stable carbon isotopes
AU - Sánchez, A.
AU - Sánchez-Rodríguez, I.
AU - Casas-Valdez, M.
N1 - Publisher Copyright:
© 2013, Springer Science+Business Media Dordrecht.
PY - 2014/4/1
Y1 - 2014/4/1
N2 - The farming of shrimp is developing quickly worldwide, and recently, ingredients such as seaweeds in low proportion (25 to 4 %), incorporated into the commercial food, have been shown to improve the shrimp productive variables. The change of commercial foods to commercial feed with a proportion of natural food, and finally, to natural food has been little and simultaneously evaluated. The aim of our study was to determine the relative contribution of dietary carbon to the growth of Litopenaeus vannamei fed with a proportion of 4 % Sargassum (δ13C = −20.9 ± 0.05 ‰), 4 % Ulva (δ13C = −20.6 ± 0.6 ‰) meal, and a control diet (δ13C = −22.6 ± 0.2 ‰) in 60-L tanks for 30 days, and finally, with the green seaweed Ulva spp. (δ13C = −13.2 ± 0.25 ‰) and Ulva meal (δ13C = −14.5 ± 0.6 ‰) in open-air ponds for 120 days, by measuring δ13C for each of the foods and in the muscle of shrimp. After 15 days, the rates of metabolic turnover (Δ13C = δ13Cshrimp − δ13Cfood) were constant until the end of the experiment in the tanks. The muscle of shrimp assimilated carbon from all diets, which demonstrated the potential use of combined diets and the optimization of their use in diets containing seaweed. Our data will be useful in future interpretations of field and laboratory isotopic values for this species.
AB - The farming of shrimp is developing quickly worldwide, and recently, ingredients such as seaweeds in low proportion (25 to 4 %), incorporated into the commercial food, have been shown to improve the shrimp productive variables. The change of commercial foods to commercial feed with a proportion of natural food, and finally, to natural food has been little and simultaneously evaluated. The aim of our study was to determine the relative contribution of dietary carbon to the growth of Litopenaeus vannamei fed with a proportion of 4 % Sargassum (δ13C = −20.9 ± 0.05 ‰), 4 % Ulva (δ13C = −20.6 ± 0.6 ‰) meal, and a control diet (δ13C = −22.6 ± 0.2 ‰) in 60-L tanks for 30 days, and finally, with the green seaweed Ulva spp. (δ13C = −13.2 ± 0.25 ‰) and Ulva meal (δ13C = −14.5 ± 0.6 ‰) in open-air ponds for 120 days, by measuring δ13C for each of the foods and in the muscle of shrimp. After 15 days, the rates of metabolic turnover (Δ13C = δ13Cshrimp − δ13Cfood) were constant until the end of the experiment in the tanks. The muscle of shrimp assimilated carbon from all diets, which demonstrated the potential use of combined diets and the optimization of their use in diets containing seaweed. Our data will be useful in future interpretations of field and laboratory isotopic values for this species.
KW - Metabolic turnover
KW - Seaweeds
KW - Shrimp
KW - Stable carbon isotopes
KW - Ulva meal
UR - http://www.scopus.com/inward/record.url?scp=84927657408&partnerID=8YFLogxK
U2 - 10.1007/s10811-013-0083-7
DO - 10.1007/s10811-013-0083-7
M3 - Artículo
SN - 0921-8971
VL - 26
SP - 961
EP - 965
JO - Journal of Applied Phycology
JF - Journal of Applied Phycology
IS - 2
ER -