Please use this identifier to cite or link to this item:
Use of seaweed Ulva lactuca for water bioremediation and as feed additive for white shrimp Litopenaeus vannamei
Eduardo Quiroz Guzmán
Cristina Escobedo Fregoso
Paola Magallón Servín
Alberto Peña Rodríguez
Acceso Abierto
ISSN: 2167-8359
DOI: 10.7717/peerj.4459
Feed additive, Seaweed, Shrimp, Water quality
"Two experimental feeding trials were conducted during four weeks to evaluate the use of Ulva lactuca in shrimp culture: (1) for wastewater bioremediation, and (2) using different inclusion levels of U. lactuca meal in shrimp feed. In feeding trial 1, shrimp reared under seaweed U. lactuca water exchange in a re-circulation system (SWE) resulted in similar growth and feed utilization as shrimp reared with clean water exchange (CWE). Shrimp under no water exchange (NWE) resulted in significant lower growth and higher feed conversion rate (FCR) compared to the other treatments (p< 0:05). Nitrogen compounds and phosphate in water fromSWEandCWEtreatments did not present significant differences during the experimental trial (p>0:05). In feeding trial 2, U. lactuca biomass produced by wastewater bioremediation in SWE treatment were dried and ground to formulate diets containing 0, 1, 2, and 3% U. lactuca meal (0UL, 1UL, 2UL, and 3UL). Shrimp fed the 3 UL diet resulted in a significant (p<0:05) improvement of growth and FCR, and enhanced whole shrimp lipid and carotenoid content by 30 and 60%, respectively, compared to control diet. Seaweed U. lactuca is suggested as a desirable species for wastewater bioremediation in integrated aquaculture systems, and its meal as a good feed additive for farmed shrimp."
PeerJ Inc.
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos

Upload archives

File SizeFormat 
elizondo_r PeerJ 2018.pdf313.97 kBAdobe PDFView/Open