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158 SECTION | I General
VetBooks.ir it is possible to eliminate compounds that exhibit high will therefore be to continue monitoring and improving
the welfare of animals used in toxicity testing and to
levels of basal toxicity in several cell types and reduce
advise on issues relating to the development of in vitro
unnecessary suffering in animals. In both in vitro and
in vivo testing it is important to use a battery of appropri- alternatives.
ate endpoint measurements of both basal toxicity and cell/
tissue-specific toxicity at each level, in order to increase
the reliability and predictive potential of the data
produced. REFERENCES
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all animal testing, animal-based toxicological testing is
EPA (Environmental Protection Agency), (1998b). Health Effects Test
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of improved in vitro systems will eventually minimize the Guidelines OPPTS 870.5450 Rodent Dominant Lethal Assay. EPA
use of animals for toxicity studies. The veterinarian’s role 712-C-98-227.