# Washington National Primate Research Center

> **NIH NIH P51** · UNIVERSITY OF WASHINGTON · 2024 · $499,000

## Abstract

SUMMARY/ABSTRACT
This proposal is a request to purchase and install collapsible pen housing for groups of nonhuman primates that
support the NIH priorities for HIV-related research. HIV-related research often involves long term housing of
macaques that can last for up to years. Currently these animals are housed in pairs in socialization cages. To
improve socialization opportunities, provide a more complex housing environment, and increase enrichment we
aim to institute group housing in pens for animals on HIV/AIDS projects. Housing these animals in pens rather
than individual cages improves overall animal welfare in two ways: Socialization in groups provides significantly
improved psychological well-being when compared to single housing or even pair housing, and the increased
total space (horizontal and vertical) in pens compared to cages improves both physical and psychological well-
being.
One challenge to housing research animals in pens is the need to access animals for research procedures or
sampling. The proposed pens are designed to attach to one-over-one caging enclosures on both sides. Animals
will be trained to enter these enclosures voluntarily. Once within the enclosures, noninvasive samples may be
obtained voluntarily, or animals may be sedated for other procedures as required.

## Key facts

- **NIH application ID:** 11090277
- **Project number:** 3P51OD010425-63S1
- **Recipient organization:** UNIVERSITY OF WASHINGTON
- **Principal Investigator:** Mari Ostendorf
- **Activity code:** P51 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2024
- **Award amount:** $499,000
- **Award type:** 3
- **Project period:** 2024-09-01 → 2025-08-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/11090277

## Citation

> US National Institutes of Health, RePORTER application 11090277, Washington National Primate Research Center (3P51OD010425-63S1). Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/grant/nih/11090277. Licensed CC0.

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