Refinement Database

Database on Refinement of Housing, Husbandry, Care, and Use of Animals in Research

This database, created in 2000, is updated every four months with newly published scientific articles, books, and other publications related to improving or safeguarding the welfare of animals used in research.

Tips for using the database:

  • This landing page displays all of the publications in the database.
  • Use the drop-down menus to filter these publications by Animal Type, Setting, and/or Topic.
  • Clicking on a parent category (e.g., Rodent) will include publications relating to all the items in that category (e.g., Chinchilla, Gerbil, Guinea Pig, etc.).
  • You may also add a keyword to further narrow your search.
  • Please note that at this time, only publications dated 2010 or later (with some exceptions) can be filtered by Animal Type and Topic, and only publications dated 2020 or later (with some exceptions) can be filtered by Setting. Most publications older than 2010 can only be searched by keyword. 

Hens were found to prefer a larger [barren] over a smaller [barren] cage, and a cage with a grass floor over one with a wire floor. When cage size and floor type were opposed, hens...

The home-cage activity of mice housed in either social or enriched sensory environments was continuously recorded for 23 days. During this period the mice were given daily injections of either strychnine, chlorpromazine, or saline. Both...

Ketamine infusion did not prevent the reduction in the concentration of progesterone resulting from restraint for blood collection.

When able to control the photoperiod for themselves, pigs prefer some light and some dark every hour of the day and every hour of the night. Although light onset is only weakly reinforcing to pigs...

Food-deprived golden hamsters in a large enclosure received food every 30 sec contingent on lever pressing, or free while their behavior was continuously recorded in terms of an exhaustive classification of motor patterns. As with...

Macaca arctoides lives in dense forests and near cultivated land and villages. ... It is fairly terrestrial but spends a great deal of time in tress, which it ascends for the sake of food or...

Observations were made of 24 monkeys that were introduced singly into a [barren] small and a [barren] large test cage. In a large cage, more normal but less stereotyped locomotion was shown than in a...

In a sample of 225 coronary care patients it was observed that a significant reduction in ventricular arrhythmias occurred following pulse palpation. These data suggest that significant changes in ventricular arrhythmia can occur as a...

Food retrieval tactics of captive orangutans using tools are documented.

The restraint apparatus allows a small monkey to be restrained comfortably and with a minimum of stress.

The male gorilla demonstrated great ingenuity in using rubber tires, hoses, tubes, branches, and burlap bags.

Discussion of risk factors associated with group-housing. Provision of cover .... reduced aggression among members of stable groups. Subjects in newly-formed groups composed of unfamiliar animals sustained fewer injuries than did those in groups formed...

Females showed significantly less aggression in the presence of adult males [one male per group] than they did in female-only groups.

The horses fed the hay diet spent significantly more time eating feed and significantly less time chewing wood, in coprophagy, in searching (for feed) and in standing than did horses receiving the concentrate diet.

Social grouping versus isolation aids subsequent learning and retention. ... Enriched-experienced rats perform better than colony - or impoverished-experience rats.

The results indicate that beagle dogs bred for laboratory purposes were not affected by the two different size [barren] cages. Dogs in the larger cages did not utilize the additional floor space which was three...