TY - JOUR
T1 - Performance of Litopenaeus vannamei postlarvae reared in indoor nursery tanks at high stocking density in clear-water versus biofloc system
AU - Esparza-Leal, Héctor M.
AU - Cardozo, Alessandro Pereira
AU - Wasielesky, Wilson
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - The aim of this study was to compare two recirculating culture systems, clear-water (CW) vs. biofloc (BFT) system, on the performance of Litopenaeus vannamei postlarvae reared in indoor nursery tanks at four stocking densities (1500, 3000, 6000, and 9000orgs/m3) during 42 days. In the study, the mean final growth weight fluctuated between 0.34 and 1.26g, with a survival range of 85.0-98.4% at the four stocking densities. In both systems, survival was not affected by stocking density. The mean final weight was higher in the culture with CW (≈0.64, 0.41, 0.31, and 0.17g/org at the stocking densities of 1500, 3000, 6000, and 9000orgs/m3, respectively) than in the BFT system. Specific growth rate (SGR) values (CW=9.7-11.8 and BFT system=8.6-10.1% weight increase/day) were higher at all treatments in the CW system. Our results indicate that in CW-recirculation system it is possible to obtain good production results in shrimp postlarvae nurseries under intensive farming condition.
AB - The aim of this study was to compare two recirculating culture systems, clear-water (CW) vs. biofloc (BFT) system, on the performance of Litopenaeus vannamei postlarvae reared in indoor nursery tanks at four stocking densities (1500, 3000, 6000, and 9000orgs/m3) during 42 days. In the study, the mean final growth weight fluctuated between 0.34 and 1.26g, with a survival range of 85.0-98.4% at the four stocking densities. In both systems, survival was not affected by stocking density. The mean final weight was higher in the culture with CW (≈0.64, 0.41, 0.31, and 0.17g/org at the stocking densities of 1500, 3000, 6000, and 9000orgs/m3, respectively) than in the BFT system. Specific growth rate (SGR) values (CW=9.7-11.8 and BFT system=8.6-10.1% weight increase/day) were higher at all treatments in the CW system. Our results indicate that in CW-recirculation system it is possible to obtain good production results in shrimp postlarvae nurseries under intensive farming condition.
KW - Biofloc
KW - Clear-water
KW - High density
KW - Litopenaeus vannamei
KW - Postlarvae
KW - Recirculation
UR - http://www.scopus.com/inward/record.url?scp=84939421636&partnerID=8YFLogxK
U2 - 10.1016/j.aquaeng.2015.07.004
DO - 10.1016/j.aquaeng.2015.07.004
M3 - Artículo
SN - 0144-8609
VL - 68
SP - 28
EP - 34
JO - Aquacultural Engineering
JF - Aquacultural Engineering
ER -