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. 

The really rather surprising result of this experiment was the lack of demonstrated preference for either the [barren] pen or the [barren] battery cages. ... Once reason why a preference was not demonstrated may have...

Cortisol levels increased within 5 minutes after the entry of an investigator - who moved the cages - and reached peak levels after 15 minutes.

Self-injurious behavior is perhaps the most dramatic and extreme form of chronic human psychopathology.

Our efforts in training chimpanzees to extend an arm and accept an intramuscular injection were successful. [Training technique is not described.]

Of 56 physically restrained [during blood collection] primates, 30 (54%) experienced severe metabolic acidosis (p. 866). The animals had more rapid respiration and pulse rates, higher rectal temperatures, and larger base deficit. ... Primates immobilized...

The establishment of a breeding colony presents immediate problems of techniques of group formation and animal introductions. In our experience, the simultaneous release of all animals has proven to produce the fewest injuries and the...

Authors estimate a 4% prevalence of trichotillomania in the American population.

The Mongolian gerbil is colonial, but its social organization within its colonies is not known. Pair formation has been suggested by breeders and has been observed under semi-natural conditions. Family units remain stable under such...

Since the average persistency of milk yield for all cows dropped 5% from wk 7 to wk 8, it appears exchange of cows between groups affected both exchanged and nonexchanged cows in a random manner...

The veterinarian, hired as he is by the institution and not by the animals, often will find himself in a delicate position. ... The veterinarian must have the courage - and it will require courage...

In mammals light ... serves the function of vision, regulation of optokinetic reflexes, and regulation of neuro-endocrine functions and behaviour. ... The illumination conditions existing around the animals in their cages need to be considered...

A heavy metal cylinder, 60 cm long and 45 cm in diameter, was capped on each end and bolted to a platform. Three 8 cm holes in the cylinder allowed access to the inside. A...

Placing of the cage on a rack even further reduces the available light. During experimentation, care must be exercised to use cages of the ... same placement to avoid variations in lighting. If this is...

The results of this study should serve as a warning to those who wish to observe behavior or take physiological measurements on monkeys. Removing an animal from its home cage prior to monitoring anything biological...

When adult monkeys were paired [without prior familiarization!] the relationship typically began with intense action [in male-male pairings there were frequently several minutes of initial fighting] leading to establishment of a dominant-submissive relationship.

The survey suggests that many investigators do not fully recognize the influence of environmental and genetic variables on experimental results.... Failure to give an adequate description of these variables makes it difficult, if not impossible...

Nonhuman primates are difficult and dangerous to handle. ... Large or aggressive animals such as male rhesus monkeys should not be handled without the use of chemical restraint. ... Animals are squeezed to the front...