Effect of an herbivorous diet on energy balance of Litopenaeus vannamei at selected ontogenetic stages
Por:
Maldonado, C, Cuzon, G, Guzman, E, Brito, R, Soto, L, Arena, L, Gaxiola, G
Publicada:
1 nov 2009
Categoría:
Aquatic Science
Resumen:
Herbivorous (20% vegetable protein, 40% carbohydrate) and carnivorous diets (40% marine animal protein, 20% carbohydrate) were experimentally tested to assess their effect on the energy balance and energetic substrates utilized by postlarvae (PL's /15 days) and juvenile shrimp (3-6 g) of Litopenaeus vannamei. Postlarval stage 60 (PL(60), early juveniles) shrimps fed HeD and CaD diets, then late juveniles (3-6 g) acclimated to the same diets were tested for their respective energy partitioning potential. No significant differences (p>0.05) on growth were obtained in early juveniles (mean final wet weight of 0.19 g). However in late juvenile stages a significant difference (p<0.05) in growth rate was observed. In terms of energy partitioning, both early and late juveniles seem to spend more energy in respiratory metabolism than in the elimination of excretion products. A change in feed composition based on quality protein sources induced some modifications on shrimp's activity measured b
Filiaciones:
Maldonado, C:
UNAM, Posgrado Ciencias Mar & Limnol, Sisal, Yucatan, Mexico
Guzman, E:
UNAM, Fac Ciencias, Unidad Multidisciplinaria Docencia & Invest, Sisal, Yucatan, Mexico
Soto, L:
UNAM, Inst Ciencias Mar & Limnol, Sisal, Yucatan, Mexico
Arena, L:
UNAM, Fac Ciencias, Unidad Multidisciplinaria Docencia & Invest, Sisal, Yucatan, Mexico
Gaxiola, G:
UNAM, Fac Ciencias, Unidad Multidisciplinaria Docencia & Invest, Sisal, Yucatan, Mexico
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