The potential of microalgae meal as an ingredient in the diets of early juvenile Pacific white shrimp, Litopenaeus vannamei
This study evaluated the potential of green water meal (GWM) as an ingredient in the diets for early juvenile Pacific white shrimp, Litopenaeus vannamei. Five isonitrogenous and isolipidic diets were formulated with 0 % (control diet), 10, 20, 30, and 40 % (GWM0, GWM10, GWM20, GWM30, and GWM40,...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer Netherlands
2014
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/37686/ http://irep.iium.edu.my/37686/ http://irep.iium.edu.my/37686/1/rossita.pdf |
| Summary: | This study evaluated the potential of green water
meal (GWM) as an ingredient in the diets for early
juvenile Pacific white shrimp, Litopenaeus vannamei.
Five isonitrogenous and isolipidic diets were formulated
with 0 % (control diet), 10, 20, 30, and 40 % (GWM0,
GWM10, GWM20, GWM30, and GWM40, respectively)
of GWM replacing fish meal protein and fed three times
daily to triplicate groups of shrimp with an average initial
weight of 1.73±0.003 g. In general, growth of the shrimp
decreased with increasing level of GWM substitution.
Except for the final weight (g) and weight gain (%), no
significant differences was detected in specific growth
rate (% day−1), daily feed intake (DFI), and feed conversion
ratio (FCR) of GWM10 and the control diet. Replacing
fish meal protein with 20–40 % GWM resulted in
significantly poorer performance than the control diet.
Survival rate was above 95 % in all treatments with no
significant difference detected. The whole-body proximate
composition of shrimp fed experimental diets was significantly
affected by the inclusion of GWM with no definite
trend. Interestingly, the GWM-based diets (GWM10,
GWM20, GWM30, and GWM40) produced shrimp with
more intense red/orange color and significantly higher
total carotenoid concentration than the control diet.The present findings suggest that GWM is a good source of
carotenoid and an acceptable alternative protein source for
shrimp which can be included in the diet at a level of
about 10 % without significant negative effect on survival,
FCR, and SGR. |
|---|