The dynamics between animals used in experimentation and those not used was very similar in the previous semester, generating 4706 animals that were not used in experimentation (83% of the total) but which were also used to develop the projects. The number of individuals that were used in active animal research projects was 992 (17% of the total number).

The following graph gives a visual representation of the importance of basic research projects within the CNB.

Covering all animals and taking into account whether or not they have been used in research, this is the degree of genetic modification of individuals.

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