Compensatory growth and production of white shrimp, Litopenaeus vannamei, in Costa Rica, during the maternity, development and grow-out commercial phases

 

Guardado en:
Sonraí Bibleagrafaíochta
Autores: Valverde-Moya, José A., Alfaro-Montoya, Jorge
Formáid: artículo original
Stádas:Versión publicada
Fecha de Publicación:2015
Cur Síos:Compensatory growth and production of Litopenaeus vannamei in commercial cultures in farms in the Gulf of Nicoya, Costa Rica, during 2014 were evaluated in this study. Growth and production were compared between three culture systems starting from an initial maternity (MA) phase with high stocking density (85/m2) of post larvae: a) maternity-development (MA-DE) with a medium stocking density (23.3/m2) and an initial weight of 1.4 g, b) maternity-development-grow-out (MA-DE-G) with a low density (8.6/m2) and an initial weight of 6.0 g and c) maternity-grow-out (MA-G) (9.4/m2 and 1.4 g). An increase in growth was recorded in MA-DE (0.85 g/week) as compared to MA (0.26 g/week), and the specific growth rate (SGR) was 3.73 %g/day for MA-DE. Survival (81.0%) and production (1 029 kg/ha) in MA-DE were higher than in MA (75.3% and 842 kg/ha, respectively). Weekly growth showed no differences between both grow-out systems: MA-G = 1.07 and MA-DE-G = 1.02 g/week; however, SGR was lower in MA-DE-G (1.51 %g/day) than in MA-G (3.19 %g/day). Results indicate the lack of compensatory growth from MA to MA-DE, and from MA-DE to MA-DE-G, while partial compensatory growth was recorded from MA to MA-G. Taken into account this compensatory growth gain in juveniles, the culture of L. vannamei in MA at high density seems to be a good production strategy.
País:Portal de Revistas UNA
Institiúid:Universidad Nacional de Costa Rica
Repositorio:Portal de Revistas UNA
Teanga:Español
OAI Identifier:oai:ojs.www.una.ac.cr:article/6982
Rochtain Ar Líne:https://www.revistas.una.ac.cr/index.php/revmar/article/view/6982
Access Level:acceso abierto
Palabra clave:Decapoda
Penaeidae
Litopenaeus vannamei
commercial culture
shrimp
cultivo comercial
camarones
camarões