Effects of different levels of Sodiume diformate on serum biochemical parameters in juvenile Siberian sturgeon Acipenser baeri

Abstract

Introduction: Due to the importance of Sturgeon fish in Iran and the world and the fact that this
fish has no teeth but is a carnivore, which indicates a strong digestive system and is compatible
with foods high in protein, there is a need to use acidifiers as a dietary supplement. Sodium
diformate (NaDF) is an organic acid that modifies serum biochemical parameters. The purpose of
this study is to evaluate the effects of Acidifier (Sodium diformate) on the biochemical indices of
the juvenile A. baerii.
Materials & methods: All groups were fed with the experimental diet for 60 days and the
experimental diets contain 0.05, 0.1 and 0.15 % NaDF. diet control was without any acidifier.
Results: The results showed that the amount of blood serum cholesterol increased significantly on
the 30th day in the 0.1% sodium diformate treatment and on the 60th day in the 0.05% sodium
diformate treatment compared to the control group. The amount of calcium in all acidifier groups
increased significantly in the first 30 days of the experiment compared to the control group, and at
the end of the period, a decreasing trend was seen in all groups except for the 0.15% sodium
diformate treatment compared to the beginning of the experiment. After 30 days, the amount of
plasma protein increased significantly in all treatments except the control treatment (P<0.05). On
the 60th day of the experiment compared to the 30th day, all acidifier treatments showed a
significant decrease (P<0.05). After 30 days, the amount of albumin increased significantly in all
treatments except the control treatment and sodium diformate 1% compared to day zero (P<0.05).
On the 60th day of the experiment compared to the 30th day, all the experimental treatments showed
a significant decrease except for the control and 0.15% sodium diformate (P<0.05). The amount of
sodium, potassium and creatine phosphokinase on days 0, 30 and 60 did not different significantly
between treatments (P>0.05) and after 30 and 60 days no significant change was observed in all
treatments compared to day 0 (P>0.05).
Conclusion: It can be concluded that the addition of different concentration of NaDF to Siberian
Sturgeon diets improves biochemical indices at 30 days and could be a useful food supplement to
improve the welfare (in treatment of 4th) of A. baerii.