send the veterinarian a draft of your protocol to resolve any issues before it goes to the IACUC.
A standard animal protocol includes the following information.
• Description of project. Help IACUC members understand your animal procedures by
avoiding technical language only people in your field will understand. Use visual aids,
such as flow charts and bullets, to illustrate your points or break up text.
• Justification for using animals. Describe why an animal model is necessary. If you're
studying a human health problem, state its cause, existing therapies, and the potential
contribution of your experiments to further its understanding. Use lay language,
explaining all medical terms and defining acronyms the first time you use them.
• Justification for species. Tell IACUC members why you chose one species over others.
You should generally use the most appropriate and least sentient species capable of
providing the data you need. The following is a typical hierarchy of sentient animal
species.
1. Non-human primates, such as monkeys, marmosets, and baboons.
2. Large animals, such as cats, dogs, and pigs.
3. Rabbits.
4. Rodents, such as hamsters, rats, and mice.
5. Non-mammalian vertebrates, such as poultry, reptiles, and fish.
Your rationale for using a species may be size or availability; the existence of previous work or
laboratory data that validates the use of a certain animal model; or the availability of reagents.
• Justification for number of animals. Request the amount of animals you need and
explain why. Use the minimum number needed to yield statistically significant results.
• Consideration of alternatives. Convince IACUC members that you have adequately
explored alternative methods. Use techniques to minimize pain and distress. These are
known as "refinements" to your protocol. List databases you searched and when,
citations derived, and the keywords or search strategy. List other sources, such as
journal articles, presentations, and colleagues.
• Description of animal procedures. Include non-surgical methods, such as injections and
sample collections; surgical methods, such as suturing and anesthesia; and other
measures, such as pre-anesthetic fasting, drugs, and care during recovery.
• Assurance that qualified staff will perform work. Name all personnel who will be
working on your study, along with their animal research experience and familiarity with
your proposed procedures. If you or someone on your staff does not have the necessary
experience, list experts at your institution who can provide training. Your IACUC will
have to verify that this training took place before animal work can begin.
• Endpoint criteria. Choose endpoints that achieve the aims of the study and avoid
unnecessary pain and distress. Include the criteria you will use to decide when to
intervene or end animal use in the study, e.g., pain that cannot be controlled with
analgesics, tumor size, and stage of disease. Interventions include euthanasia,
treatment, or discontinuance of procedure. Many institutions have default criteria, so
check with your IACUC for guidance.
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