70 Safina Musa, Christopher Mulanda Aura and Rodrick Kundu
(p > 0.05) from M70. There were no significant interactive effects of protein
and lipid on WG (%), SGR, and FI. However, there was a strong significant
interaction of protein and feeding rate on WG (%), SGR and FE. Notably,
there were strong interactive effects of protein, Lipid and feeding rate on FE.
Table 2. The effects of crude protein, crude lipid, feeding rate and their
interaction on growth parameters at the end of 16 weeksParameter WG (%) SGR FE (%) FI (g)
CP (P) (%)
L 25442.0 ± 19.4 b 2.99 ± 0.07 b 75.2 ± 3 b 88.16 ± 5.55H 35 514.8 ± 20.1 a 3.22 ± 0.07 a 99.0 ± 3 a 80.15 ± 4.52
CL (L) (%)
L 8 539.5 ± 19.7 a 3.30 ± 0.05 a 95.2 ± 0.4 94.75 ± 4.93 a
H 12 430.2 ± 18.7 b 2.96 ± 0.06 b 87.0 ± 4 74.66 ± 3.87 b
FR (F) (%)
L 70 388.1 ± 15.0 c 2.82 ± 0.05 c 86.2 ± 3 a 59.02 ± 1.68 c
M 50 479.7 ± 23.0 b 3.12 ± 0.07 b 99.0 ± 5 a 82.12 ± 2.51 b
H 100 548.9 ± 22.6 a 3.33 ± 0.06 a 79.4 ± 4 b 104.04 ± 3.36 a
Interaction
P x L ns ns ns
P x F ns
L x F ns ns
P x L x F ns * * ns
Values are means ± SE; values within the same column without a common superscript
are significantly different (p < 0.05).
WG % = percentage weight gain; SGR = specific growth rate; FE = feed efficiency; FI
= feed intake. Significant level of differences: ns, p > 0.05; , p ≤ 0.05; **,
p ≤ 0.01.
The main effects of crude protein, crude lipid and feeding rate on blood
parameters at the end of 4 moths are shown in Table 3. Plasma TG, CHOL, TP
and GLU concentrations tended to decrease significantly (p < 0.001) with
increasing dietary protein level. Dietary crude lipid level had no significant
(p > 0.05) effects on plasma TG, CHOL, GLU and TP. Feeding rate was found
also not to have significant (p > 0.05) influences on plasma TG, CHOL and
TP. For plasma GLU, the highest value was observed in high feeding rate even
though it was not significantly different (p > 0.05) from medium feeding rate.
The lowest GLU value was observed in low feeding rate but it was also not
significantly different (p > 0.05) from medium feeding rate. There was a
strong interactive effect of PXL, PXF and LXF on blood plasma TG. Notably,
there was a strong interactive effect of PXL, PXF on plasma GLU.