International Journal of Aquaculture, 2017, Vol.7, No.5, 31
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concentration varied significantly amongst the fishes fed the various concentrations of fumonisin B1. At day 28
post commencement of the feeding, the serum LDH concentration increased from 195.78 ±2.04 (in fish fed the
control diet) to 718.13 ±11.47 (in fish fed diet F4); and at day 56 post commencement of the feeding experiment,
the serum LDH concentration ranged from 192.79 ±3.27 (in fish fed the control diet) to 710.16 ±21.19 (in fish
fed diet F4). ANOVA revealed significant variations (p < 0.05) in the serum LDH concentration in a comparison
between fishes fed the control diet and fish fed the diets amended with the varied concentrations of fumonisin B1.
Further, ANOVA also, revealed the serum LDH concentration varied significantly (p < 0.05) amongst fishes fed
the various concentrations of dietary fumonisin B1.
4.2 Serum lipids profile
Diets amended with the varied concentrations of FB
1
produced significantly elevated serum total cholesterol
concentration compared to the fish fed the control diet at day 7 post commencement of the fumonisin B1 amended
diets (Figure 1). Further, the serum total cholesterol concentration in fishes fed the diet amended with FB
1
varied
significantly (p < 0.05) from one another and increased along the gradient of FB
1
inclusion. Also dietary exposure
to FB
1
produced significant (p < 0.05) elevation of the serum HDL concentration compared with fish fed the
control diet. ANOVA further revealed that at day 7, except for fish fed diet F4, the serum HDL concentration
were not significantly different (p > 0.05) amongst the groups of fish fed diets amended with FB
1
. Serum very low
density lipids (VLDL) in fishes fed the control diet at day 7 post commencement of the dietary exposure was
16.56 ±7.09 while the serum VLDL for fishes fed the diets amended with FB
1
ranged from 24.03 ±4.11 (in fish
fed diet F1) to 32.64 ± 7.63 (in fish fed diet F4) (Figure 1); dietary exposure to FB
1
for 7 days also caused
significant elevation (p < 0.05) in the serum triglycerides (TRG) concentration compared to fishes fed the control
diet. Fishes fed the control diet (diet F0) had serum TRG concentration of 82.79 ±10.07 whereas, the serum TRG
concentration in fishes fed the diets amended with FB
1
ranged from 120.14 ±9.13 (in fishes fed diet F1) to 163.17
±23.15 (in fishes fed diet F4).
Figure 2 depicts serum lipids profile of
Heterobranchus longifilis
catfishes at 28 days of dietary exposure to FB
1
.
It shows fish fed diet F0 (the control diet) had serum total cholesterol concentration of 97.20 ±8.79 whereas the
serum total cholesterol concentration of fish fed the diets amended with FB
1
ranged from 106.83 ±10.54 (in fishes
fed diet F1) to 117.34 ±18.39 g/dL. ANOVA revealed the serum total cholesterol concentration of fishes fed diets
amended with FB
1
to be significantly higher than those of fish fed the control diets; further, ANOVA also showed
that the serum total cholesterol concentration varied significantly (p < 0.05) amongst the fishes fed the diets
amended with FB
1
. At this same period, the serum TRG concentration ranged from 78.84 ±17.04 (in fish fed diet
F0) to 167.09 ±21.09 (in fish fed diet F4). ANOVA further showed that the serum TRG concentration varied
significantly between fish fed the control diet compared to fish fed the diets amended with FB
1
.
Figure 1 Serum Lipids Profile at 7 Days of Feeding FB1 Based
Diets
Figure 2 Serum Lipids Profile at 28 Days of Feeding FB1
Based Diets
