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Questions about our animal testing policy

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Questions about our animal testing policy

We seek to contribute to the development of new medications or therapies for serious diseases. In certain cases, animal testing is required for the proper performance of our research duties. When BPRC conducts experiments involving animal testing, we act in accordance with the Dutch Experiments on Animals Act (WOD), under which primates must only be used for biomedical research on serious diseases if no alternative methods are available. We operate in accordance with the principle of the three Rs: Reduction, Refinement and Replacement of experiments involving animal testing.

So what does this mean in actual practice?

The principle of the three Rs basically amounts to our being able (thanks to new technologies and improved selection methods) to minimise the number of animals we need for testing purposes and to our seeking to make our primates' lives as pleasant as possible. In this way, we seek to obtain more information from fewer animals, meaning we will need fewer laboratory animals (reduction).

In addition, we expend a great deal of energy on identifying methods that allow us to carry out research that does not require any animal testing (replacement). Furthermore, we pay a great deal of attention to ‘ethological research’, i.e., observation (which helps us give our primates even better living conditions) and animal training (which helps us reduce the level of anxiety experienced by our animals) (refinement).

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How many primates live at BPRC?

BPRC accommodates three types of monkeys: rhesus macaques, crab-eating macaques and marmosets. The majority of our approximately 1,000 animals are part of a breeding programme and are not used for experimental purposes.

The great majority of our animals are rhesus macaques (Macaca mulatta). These animals are unique, because they have been indexed for a large number of genetic, virological and immunological characteristics. This allows us to carefully select the right animals for the right experiments, which in turn allows us to minimise the number of monkeys required for each particular experiment to the best of our ability.

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Where does BPRC get its monkeys?

All of BPRC's rhesus macaques, crab-eating macaques and marmosets were bred by ourselves. While this is expensive, it renders stressful transportation from breeding centres in countries such as China and Mauritius unnecessary.

Occasionally we will buy a few monkeys from other specialist breeding centres in Europe when, in exceptional cases, we need more monkeys of a particular type than we have bred ourselves, or whenever we need new blood. We NEVER purchase monkeys that were caught in the wild. BPRC strictly complies with EU legislation.

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Are all your monkeys used for experimentation purposes?

No, only about 10% of our monkeys will be used in any given year. They will never be under the age of 4 (rhesus and crab-eating macaques) or 1.5 (marmosets).

Generally, young animals stay in their birth groups until they reach those ages. These are the ages at which they will migrate to other groups in the wild. In this way we seek to imitate natural patterns to the maximum degree possible.

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What benefits does this method have?

The approach described above reduces the amount of anxiety experienced by the animals during experiments, since they are more mentally stable than animals which were removed from their birth group at an early age. The colony's manager (an animal behaviour expert), vets and geneticists closely cooperate to ensure that the animals are bred properly, to prevent inbreeding and to guarantee the best possible selection of animals for the various studies.

Why do you use monkeys rather than rats or mice?

Genetically, monkeys are the species most similar to human beings; rhesus macaques are genetically about 93% identical to humans. It should be noted that not all primates are suitable for all studies. A primate's suitability for a particular study depends on many factors. The decision as to which animals are suitable for which studies is made by the colony's manager, in association with our vets. The females in the colonies have a 50% chance they will never be used for any experiments, since they may be necessary for breeding purposes.

What happens to the animals after an experiment?

Generally speaking, the animals' organs must be examined at the end of a study. If this is not the case, we may in some cases be able to use the animals in a different study, always taking into account applicable laws and the level of discomfort caused to the animals.

Most primates used in a study will eventually be euthanised, either for study-related purposes or for animal welfare reasons. Legislators check annually how many animals we have used for experimentation purposes.

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What happens to the animals after they die?

We collect the tissues and organs of every dead monkey. These materials are stored in our biobank, which is Europe's largest biobank for non-human primate cells and tissues.

Scientists from all over the world are welcome to use these cells and tissues to examine alternative research methods.

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Does BPRC conduct research on behalf of make-up companies, too?

BPRC does not conduct research related to the development of cosmetics (this is prohibited under the Dutch Experiments on Animals Act), recreational drugs or weapons. BPRC only conducts research on diseases threatening the lives of humans.