Effects of Propolis on microbiologic and biochemical parameters of Rainbow trout (Oncorhynchus mykiss) after exposure to the pesticide

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Abstract

 Cypermethrin is a
potential toxic pollutant that directly threatens the aquatic ecosystems and
environment. Propolis, a natural product collected from plants by honey bees
has many functions, such as antimicrobial, antioxidant, and anti-inflammatory.
This study attempted to detrmine some biochemical and microbiological
parameters of rainbow trout fillets after exposure to propolis
and cypermethrin. The results of the current study revealed that levels of
malondialdehyde (MDA), lactic acid, total volatile base-nitrogen (TVB-N), total
counts of psychrophilic, and mesophilic bacteria increased in cypermethrin
groups (P < 0.05), compared to control group. Furthermore, there were no
significant differences in pH levels between groups. Additionally, levels of
MDA, lactic acid, TVB-N, count of psychrophilic, and mesophilic bacteria in
cypermethrin+propolis treated groups were significantly reduce in comparison to
exposed groups with cypermethrin (P < 0.05). The findings also showed that the
fillet quality some biochemical and microbiologic functions of fishes could be changed
in groups that exposed to cypermethrin by propolis.  

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Iranian Journal of Fisheries Sciences
Volume 11, Issue 3
July 2012
Pages 490-503

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