Energy balance of Litopenaeus vannamei postlarvae fed on animal or vegetable protein based compounded feeds
|Author(s)||Jimenez Yan L1, Brito A2, Cuzon Gerard4, Gaxiola G2, Garcia T2, Taboada G2, Soto L3, Brito R5|
|Affiliation(s)||1 : Univ Autonoma Carmen, Fac Ciencias Pesqueras, Campeche 24180, Mexico.
2 : Univ Juarez Autonoma Tabasco, Extens Univ Rios, Tabasco, Mexico.
3 : UNAM, Fac Ciencias, Unidad Multidisciplinaria Docencia & Invest, Yucatan, Mexico.
4 : IFREMER, COP Tahiti, France.
5 : UNAM, Inst Ciencias Mar & Limnol, Lab Ecol Bentos, Mexico City, DF, Mexico.
|Source||Aquaculture (0044-8486) (Elsevier), 2006-09 , Vol. 260 , N. 1-4 , P. 337-345|
|WOS© Times Cited||7|
|Keyword(s)||Shrimp, Physiology, Vegetable protein, Animal protein, Energy, Juvenile, Postlarvae|
|Abstract||L. vannamei postlarvae are normally raised with a protein dense diet (50% protein) rich in fishmeal. Part of the protein is utilized for energy purpose instead of protein synthesis. Based on a previous energy partitioning study, the effects of two isoenergetic compounded feed treatments - animal protein (AP) and vegetable protein and carbohydrates (VPC) - upon growth efficiency and energy budget of shrimp postlarvae and early juveniles were determined. Recovered energy (RE) or production (P) after 50 days trial was similar (2 J day(-1)) in both treatments, from PL14 to PL19. However, early juveniles discriminated between animal protein (116 J day(-1)) and vegetable protein and carbohydrates (88 J day(-1)). The difference in respiration indicated a higher heat increment with AP compared to VPC. At maintenance level, energy used was lower with AP than VPC treatment. Post-larvae and early juveniles employed protein as a main energy substrate (O:N < 20). Differences in the efficiencies observed in the calculated energy budget were attributed to the presence of carbohydrates in diet and not to the protein source. The advantage of incorporating vegetable protein source in the diet of harvesting shrimp may eventually contribute towards a reduction of fishmeal costs and waste products as well as to achieve sustainable shrimp farming. (c) 2006 Elsevier B.V. All rights reserved.|