The objective of this study was to evaluate the
influence of different dietary lipid and fatty acids
on the nutritional value of bioflocs used as a feed,
as well as shrimp performance and health. A
total of 1800 Litopenaeus vannamei juveniles
(2.87 0.01 g) were cultured in biofloc technol-
ogy, with a density of 200 shrimp m2
with three isoproteic experimental diets at differ-
ent lipid levels (85 g kg1
105 g kg1
); each treatment was performed in
triplicate. After 61 days, no significant difference
was observed (P > 0.05) among the water quality
parameters. For the shrimp performance, signifi-
cant difference was observed (P = 0.011) among
the values of survival, where treatments with
lower lipid levels had higher survival
(92.5 3.5% and 91.0 2.5%). Although there
are significant differences in survival, no signifi-
cant differences in the total haemocytes count
(THC) were observed. For other growth perfor-
mance, no differences were observed (P > 0.05).
A positive correlation (r = 0.75) has been
observed between the dietary oleic acid and bio-
flocs. The bioflocs showed ‘long-chain’ polyunsat-
urated fat acids (lcPUFA), especially arachidonic
acid. The shrimp showed similar growth and
stayed healthy at the end of the experimental
period.
, and fed
, 95 g kg1 and