TY - JOUR
T1 - Substituting fishmeal with mixtures of wheat, corn and soya bean meals in diets for the white leg shrimp, Litopenaeus vannamei (Boone)
T2 - effect on production parameters and preliminary economic assessment
AU - García-Ulloa, Manuel
AU - Hernandez-Llamas, Alfredo
AU - de Jesús Armenta-Soto, Styll
AU - Rodríguez-González, Hervey
N1 - Publisher Copyright:
© 2017 John Wiley & Sons Ltd
PY - 2017/9
Y1 - 2017/9
N2 - We analysed the effect on production and economic performance of juvenile Litopenaeus vannamei of isoproteic diets substituting fishmeal by 25%, 50%, 75% and 100% with mixtures of wheat, soya bean and cornmeals. In a laboratory trial, 10 juveniles m−2 (1.1 ± 0.1 g) were reared in 60-L plastic containers using a recirculation system for 90 days. Three replicates were used to test each diet. A commercial diet serving as a reference and the diet with the highest content of essential amino acids (50% substitution, 6.46 ± 1.1 g) produced significantly higher shrimp final weight (7.12 ± 0.9 g, P < 0.05). There were not significant differences in specific growth rate and mean survival (85.9 ± 0.2%, P > 0.05). In a pond trial, 10 shrimp m−2 (1.08 ± 0.3 g) were cultivated in 1.5 m−3 cages for 35 days, testing the diets in triplicate. Final weight was significantly higher (P < 0.05) when 100% substitution was used (10.89 ± 0.24 g), while survival did not differ significantly among diets (P > 0.05). The optimal level of substitution was estimated at 86.0%. Apparently, nutrients contained in the diets combined well with natural feed available in the pond, up to a point where 7.3% of fishmeal inclusion is recommended. An economic analysis showed that 100% substitution produced the best results. We conclude that mixtures of wheat, corn and soya meals are potential alternatives to replace fishmeal effectively in diets for L. vannamei.
AB - We analysed the effect on production and economic performance of juvenile Litopenaeus vannamei of isoproteic diets substituting fishmeal by 25%, 50%, 75% and 100% with mixtures of wheat, soya bean and cornmeals. In a laboratory trial, 10 juveniles m−2 (1.1 ± 0.1 g) were reared in 60-L plastic containers using a recirculation system for 90 days. Three replicates were used to test each diet. A commercial diet serving as a reference and the diet with the highest content of essential amino acids (50% substitution, 6.46 ± 1.1 g) produced significantly higher shrimp final weight (7.12 ± 0.9 g, P < 0.05). There were not significant differences in specific growth rate and mean survival (85.9 ± 0.2%, P > 0.05). In a pond trial, 10 shrimp m−2 (1.08 ± 0.3 g) were cultivated in 1.5 m−3 cages for 35 days, testing the diets in triplicate. Final weight was significantly higher (P < 0.05) when 100% substitution was used (10.89 ± 0.24 g), while survival did not differ significantly among diets (P > 0.05). The optimal level of substitution was estimated at 86.0%. Apparently, nutrients contained in the diets combined well with natural feed available in the pond, up to a point where 7.3% of fishmeal inclusion is recommended. An economic analysis showed that 100% substitution produced the best results. We conclude that mixtures of wheat, corn and soya meals are potential alternatives to replace fishmeal effectively in diets for L. vannamei.
KW - fishmeal replacement
KW - plant proteins
KW - shrimp growth
KW - shrimp nutrition
UR - http://www.scopus.com/inward/record.url?scp=85026880086&partnerID=8YFLogxK
U2 - 10.1111/are.13306
DO - 10.1111/are.13306
M3 - Artículo
SN - 1355-557X
VL - 48
SP - 4864
EP - 4873
JO - Aquaculture Research
JF - Aquaculture Research
IS - 9
ER -