3. Results
Ž The feed intake data of striped bass fed the three experimental diets basal, 2 FS,
. and 4 FS are shown in Fig. 1a. Feed intake was higher for fish fed the FS-supple-
mented diets when compared to fish fed the basal diet, although the magnitude of the increase was greater in fish fed the 4 SM diet. Specifically, feed intake of fish fed the
2 FS diet was significantly higher than fish fed the basal at 6 weeks of feeding Ž
. P F 0.05 , whereas in fish fed the 4 FS diet, significant improvements are evident at
Ž .
Ž .
4 P F 0.02 and 6 P F 0.0009 weeks of feeding. In addition, feed intake of fish fed Ž
. the 4 FS diet was also increased P F 0.05 when compared to fish fed the 2 FS diet
Ž .
after 6 weeks of feeding. Significant increases in weight gain Fig. 1b were achieved in Ž
. fish fed the 2 FS diet at 6 weeks of feeding P F 0.02 and fish fed the 4 FS diet at
Ž .
Ž .
4 P F 0.02 and 6 P F 0.0005 weeks of feeding when compared to fish fed the basal diet. Fish fed the 4 FS diet had significantly improved weight gain when compared to
Ž .
fish fed the 2 FS diet at 6 weeks P F 0.05 . A significant improvement in FCR in fish fed the 2 FS and 4 FS diets over fish fed the basal diet was first evident at 4 weeks
Ž . Ž
. Ž .
Ž .
Fig. 1. a Feed intake grfish and b Growth grfish of striped bass fed the basal, 2 feeding stimulant Ž
. Ž
. Ž
. mix 2 FS and 4 feeding stimulant mix 4 FS diets for 6 weeks. Means vertical bars indicateS.E.
Ž .
sharing the same letter within a period are not significantly different by LSD comparison P F 0.05 .
Table 2 Ž
. Ž
. Feed conversion ratios FCR of striped bass fed the basal, 2 feeding stimulant mix 2 FS and 4 feeding
Ž .
a
Ž .
stimulant mix 4 FS diets for 6 weeks. Means numbers in parentheses indicate S.E. sharing the same
Ž .
letter within a period are not significantly different by LSD comparison P - 0.05 Period
FCR Basal
2 FS 4 FS
Ž .
Ž .
Ž .
0–2 weeks 1.45 0.08
1.31 0.09 1.39 0.09
a b
b
Ž .
Ž .
Ž .
0–4 weeks 1.58 0.05
1.38 0.06 1.40 0.06
a b
b
Ž .
Ž .
Ž .
0–6 weeks 1.53 0.04
1.36 0.05 1.32 0.05
a
ns 4 for the Basal; ns 3 for 2 FS and 4 FS treatments.
Ž .
of feeding P F 0.04 and P F 0.05, respectively; Table 2 and remained significant
Ž .
throughout the completion of the experiment P F 0.03 and P F 0.01, respectively .
4. Discussion
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