International Journal of Marine Science 2016, Vol.6, No.25, 1-8
5
Table 2 Morphometric and biochemical composition in Asian seabass
Lates calcarifer
Parameters and
feeding trial
Control
Experiment
Comparison among
the days (Con)
Comparison
among the days
(Exp)
Comparison between
the groups
(Con-Exp)
Initial Length (cm)
10
th
day
20
th
day
30
th
day
(4.9±0.11)
5±0.1
a
5.08±0.04
a
5.3±0.15
a
5.3±0.1
a
5.56±0.07
ab
5.74±0.04
b
F value - 2.12
P value - 0.27
F value - 9.30
P value -0.05
*
t value - (6.72)
P value - 0.001
**
Initial weight (gm)
10
th
day
20
th
day
30
th
day
Protein (%)
10
th
day
20
th
day
30
th
day
Lipid (%)
10
th
day
20
th
day
30
th
day
Carbohydrate (%)
10
th
day
20
th
day
30
th
day
(1.12±0.04)
1.08±0.01
a
1.24±0.04
b
1.28±0.03
b
31.1±2
a
32.9±2.3
a
34.9±1.8
a
1.2±0.3
a
1.8±0.3
a
2.2±0.2
a
12.02±0.9
a
23.98±1.1
b
25.68±0.8
b
1.4±0.03
a
1.51±0.02
b
1.54±0.01
b
34.7±1.8
a
35.8±1.9
a
37.2±2.3
a
2.3±0.2
a
2.4±0.2
a
7.2±1.1
b
20.06±1.9
a
26.05±1.4
ab
31.64±1.6
b
F value - 16.32
P value - 0.02
*
F value - 0.87
P value - 0.50
F value - 3.85
P value - 0.15
F value - 58.89
P value - 0.004
**
F value - 10.76
P value - 0.04
*
F value - 0.39
P value - 0.71
F value - 19.79
P value-0.02
*
F value - 11.58
P value - 0.04
*
t value - (-12.43)
P value - 0.000
**
t value - (-10.02)
P value - 0.000
**
t value - (-2.35)
P value-0.07
t value - (-3.98)
P value - 0.01
**
** denotes significance. Superscript indicates statistical differences among groups. Different superscripts in the same row indicate
significant differences.
Table 3 Effect of growth and formulated feed efficiency parameters in seabass
L. calcarifer
Parameters
Control
Experiment
Weight Gain (%)
Specific Growth Rate (%/day)
Survival Rate (%)
Feed Conversion Ratio (%)
23.2
0.79
65.6
2.08
47.9
1.64
87.5
1.88
The advantages of partial inclusion of seaweed supplement can be attributed to the balance of dietary fibers, lipid,
carbohydrates, minerals and carotenoid together with basic nutritional requirements in fish diet in comparison to
commercial diet (Ergun
et al
., 2013). Protein is the major growth promoting factor in feed. The protein
requirement of fish are influenced by various factors such as fish size, water temperature, feeding rate, availability
and quality of feeds and overall digestible energy content of diet (Wilson, 2000). Carbohydrates are very efficient
energy sources in the most animals for standard metabolism, muscular energy costs and other energy (ATP)
requiring process. Carbohydrates are considered to be the first among the organic nutrients can be utilized to
generate the required energy.
