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Development of a Feeder for Uninterrupted Centrifugation StudiesA specialized paste diet feeder was developed in support of a hypergravity (2G) centrifuge study. The centrifuge study was to be compared to a previously flown Russian Cosmos spaceflight so experimental parameters of the 14 day spaceflight had to be duplicated. In order to duplicate at hyper G an experiment that took place in weightlessness, all other conditions must be as identical as possible. Stopping the centrifuge to provide maintenance for the animals causes unacceptable changes in experimental research results. Thus the experimental protocol required the delivery of a designated amount of paste diet at regular intervals for a two week period without stopping the centrifuge. A centrifuge and a stationary control cage, each containing 10 laboratory rats, were fitted with feeders that were calibrated to provide 140 plus or minus 2g of paste diet every 6 hours. This paper describes development of the feeder design and results of its operation over the two week experiment. The design philosophy and details of the feeder system are provided with recommendations for future such devices.
Document ID
20010048895
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Mulenburg, Gerald M.
(NASA Ames Research Center Moffett Field, CA United States)
Vasques, Marilyn F.
(NASA Ames Research Center Moffett Field, CA United States)
Gundo, Daniel P.
(NASA Ames Research Center Moffett Field, CA United States)
Griffith, Jon B.
(NASA Ames Research Center Moffett Field, CA United States)
Wade, Charles E.
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Life Sciences (General)
Meeting Information
Meeting: 18th Space Simulation Conference: Space Mission Success through Testing
Location: Baltimore, MD
Country: United States
Start Date: October 31, 1994
End Date: November 3, 1994
Funding Number(s)
PROJECT: RTOP 199-08-12
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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