International Journal of Aquaculture, 2017, Vol.7, No.5, 31
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The serum lipids profiles of fish fed the control and the fumonisin B1 amended diets at day 56 of dietary exposure
are as depicted in Figure 3. It shows serum cholesterol concentration of fish fed the control diet to be 93.56 ±8.11
whereas those of fish fed the diets containing varied amounts of FB
1
ranged from 103.12 ±20.17 (in fish fed diet
F1) to 129.33 ±15.09 (in fish fed diet F4). ANOVA reveals the serum total cholesterol concentration of fish fed
diets amended with fumonisin B1 to be significantly higher than those of fish fed the control diet. Also, whereas,
the total cholesterol concentration of fish fed diet F1 was not significantly different from those of fish fed diet F2,
they however, significantly differ (p < 0.05) from those of fish fed diet F3 and diet F4. Furthermore, the serum
total cholesterol concentration of fish fed diet F4 was significantly higher than those of fish fed diet F3.
Figure 3 Serum Lipids Profile at 56 Days of Feeding FB1 Based Diets
The serum triglyceride (TRG) concentration following dietary exposure of
H. longifilis
catfish at 56 days of the
experiment are as depicted in Figure 3. It shows the serum TRG concentration of fish fed the control diet to be
81.17 ±23.04 while the serum TRG concentration of fish fed the diets amended with varied concentrations of
ranged from 120.11 ±25.07 (in fish fed diet F1) to 175.92 ±18.44 (in fish fed diet F4). ANOVA revealed the
serum TRG concentration of fishes fed diets amended with varied concentrations of FB
1
were significantly higher
compared to those of fish fed the control diet; also, the serum TRG concentration varied significantly amongst
fishes fed the diets amended with the varied amounts of FB
1
and increased along the gradient of concentration of
dietary FB
1
inclusions.
5 Discussions and Conclusion
The FB
1
contents of the various diets were at variance with the amounts of purified FB
1
introduced to the diets at
the time of the production of the experimental diets; this is not unexpected, as it has been reported that the
Fumonisins especially FB
1
is ubiquitous in maize and in products made from maize (Bankole and Mabekoje, 2004;
Binder et al., 2007; Griesler and Encarnacao, 2009), therefore, the difference in the concentration of the FB
1
in the
produced diets and the amounts of purified FB
1
introduced in the diets at the time of production is indicative of
the of the amounts of “endogenous” FB
1
present in the maize used for the production of the diets (McDonald and
Milligan, 1992; McCue, 2010; Monbaliu et al., 2010).
The serum total protein concentration is often used as an indicator of physiological condition in fish (Maita, 2007).
The serum total protein concentration consists of the serum albumin and serum globulin concentrations (Wagner
and Congleton, 2004). An increase or decrease of serum total protein concentration is of clinical significance and
relevance in animals as well as in fish (McDonald and Milligan, 1992; McCue, 2010). Serum total protein is
