Influence of contaminents on health status of farm animals
2007
Bojkovski, J., Fakultet veterinarske medicine, Beograd (Serbia) | Borozan, S., Fakultet veterinarske medicine, Beograd (Serbia) | Hristov, S., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Stankovic, B., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Joksimovic-Todorovic, M., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Davidovic, V., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
In the paper authors have described the monitoring of presence of biological environmental contaminants (pathogenic bacteria), chemical environmental contaminants (heavy metals) and their influence on well-being and health status of animals on the large dairy cow, pig and sheep farms throughout the prolonged period of time. The results obtained indicate presence of the risk of animal feed contamination by heavy metals and their deposition within the animal organisms as well as their influence on reproductive capacity of the domestic animals. Toxicity of heavy metals generally leads to formation for free radicals through inhibition of the antioxidative defense enzyme activity as well as glutathione oxidation and production of malondialdehyde (MDA) as an oxidative stress marker. Their toxicity is also a result of their valiability to make covalent bonds with sulthydryl groups of the biomolecules or displacement of certain cofactors, thus inhibiting activity of certain enzymes.
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