Aquaculture: Management, Challenges and Developments

74 Safina Musa, Christopher Mulanda Aura and Rodrick Kundu

not significantly (p > 0.05) different from medium feeding. Feeding rate had
no significant (p > 0.05) influences on ILR. There were no significant
interactive effects of PxL, PxF, LxF and PxLxF on any of the biological
parameters tested.

Table 4. Correlation between growth parameters and blood parameters

Parameter TG (mg dl-^1 ) CHOL (mg) GLU (mg dl-^1 ) TP (g dl-^1 )

WG (%) R - 0.13001 - 0.57451 - 0.24679 0.35610

P 0.2981 <.0001 0.0458 0.0033

FBW (g) r - 0.16772 - 0.59866 - 0.24385 0.33700

p 0.1783 <.0001 0.0485 0.0057

SGR r - 0.19729 0.41332 0.36253 - 0.33830

p 0.1123^ 0.0006 0.0028 0.0055

FI(g) r 0.27172 - 0.31180 - 0.18023 0.59198

p 0.0273 0.0108 0.1476 <.0001

WG % = percentage weight gain, FBW = final body weight, SGR = specific growth
rate, FI = fide intake
TG = triglyceride, CHOL = cholesterol, GLU = glucose, TP = total protein, r =
coefficient of correlation, p = probability.

The ranking of the treatments based on biological parameters at the end of
4 months is shown in Figure 4. Intestinal length ratio (ILR) was not affected
significantly (p > 0.05) by the independent variables and no significant (p >
0.05) differences were exhibited among all the treatments. The highest
hepatosomatic index (HSI) value (3.50) was observed in treatment CP25CL12-
100% while the lowest value (1.80) was observed in treatment CP35CL6-50%.
Considering the values of viscerasomatic index (VSI), there were no
significant (p > 0.05) differences among all the treatments without treatments
CP35CL6-70% and CP35CL6-50%. The values of intraperitoneal fat (IPF)
ranged from 1.35 observed in treatment CP35CL6-70% to 3.48 observed in
CP25CL12-100%. Also, condition factor (CF) without treatments CP35CL12-
50% and CP25CL12-50%, did not have significant (p > 0.05) differences
among the treatments.