Refinement Database

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

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

Links to the full text for publications that appear in open access journals or are published on the AWI website are provided under the abstract.

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 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. Most publications older than 2010 can only be searched by keyword. 
Augustine, L., Baskir, E., Kozlowski, C. P. 2022. Investigating welfare metrics for snakes at the Saint Louis zoo. Animals 12(3), 373.
Modern herpetoculture has seen a rise in welfare-related habitat modifications, although ethologically-informed enclosure design and evidence-based husbandry are lacking. The diversity that exists within snakes complicates standardizing snake welfare assessment tools and evaluation techniques. Utilizing...
Rowe, E., Mullan, S. 2022. Advancing a “good life” for farm animals: Development of resource tier frameworks for on-farm assessment of positive welfare for beef cattle, broiler chicken and pigs. Animals 12(5), 565.
There is increasing recognition that farm animal welfare standards should ensure positive welfare, as well as prevent negative welfare. Resources that are valued by an animal and that provide opportunities to engage in motivated behaviours...
Serinelli, I., Soloperto, S., Lai, O. R. 2022. Pain and pain management in sea turtle and herpetological medicine: State of the art. Animals 12(6), 697.
In sea turtle rescue and rehabilitative medicine, many of the casualties suffer from occurrences that would be considered painful in other species; therefore, the use of analgesic drugs should be ethically mandatory to manage the...
Diggins, R., Burrie, R., Ariel, E. et al. 2022. A review of welfare indicators for sea turtles undergoing rehabilitation, with emphasis on environmental enrichment. Animal Welfare 31(2), 219-230.
For animals undergoing rehabilitation it is vital to monitor welfare in a way that is feasible, practical, and limits stress to the animal. The industry gold standard is to assess welfare under the Five Domains...
Dell'Anna, F., Schino, G., Aureli, F. 2022. Anxiety in Geoffroy's spider monkeys (Ateles geoffroyi): Can scratching be used as an indicator? American Journal of Primatology 84(6), e23373.
Self-directed behavior, such as self-scratching (hereafter, scratching), occurs in several taxa across the animal kingdom, including nonhuman primates. There is substantial evidence that scratching is an indicator of anxiety-like emotions in a variety of nonhuman...
Zhang, J., Yu, L., Yin, G. 2022. Evaluation of behavior and affective state of different-parity sows with strong/weak pupil light reflex. Animals 12(9), 1184.
The stall-housing system is commonly used in the modern swine industry in many countries; however, long-term space restrictions can cause affective and physiological abnormalities in sows. The pupil light reflex (PLR) can reflect the psychological...
Knaebe, B., Weiss, C. C., Zimmermann, J. et al. 2022. The promise of behavioral tracking systems for advancing primate animal welfare. Animals 12(13), 1648.
Recent years have witnessed major advances in the ability of computerized systems to track the positions of animals as they move through large and unconstrained environments. These systems have so far been a great boon...
Lou, M. E., Porter, S. T., Massey, J. S. et al. 2022. The application of 3D landmark-based geometric morphometrics towards refinement of the piglet grimace scale. Animals 12(15), 1944.
Proper methods of assessment to objectively identify pain are essential for welfare improvements of piglets undergoing surgical castration on commercial farms. The Piglet Grimace Scale (PGS) is used to identify changes in facial expressions caused...
Paterson, E. A., Turner, P. V. 2022. Challenges with assessing and treating pain in research primates: A focused survey and literature review. Animals 12(17), 2304.
Research primates may undergo surgical procedures making effective pain management essential to ensure good animal welfare and unbiased scientific data. Adequate pain mitigation is dependent on whether veterinarians, technicians, researchers, and caregivers can recognize and...
Windsor, P. A. 2022. Role of topical anaesthesia in pain management of farm animals, a changing paradigm. Animals 12(18), 2459.
Field evidence indicates that livestock producers are motivated by access to products that readily deliver pain management during husbandry interventions and, more recently, viral epidermal infectious diseases, including FMD. There has been impressive adoption in...
Drexl, V., Dittrich, I., Haase, A. et al. 2022. Tail posture as an early indicator of tail biting - A comparison of animal and pen level in weaner pigs. Applied Animal Behaviour Science 252, 105654.
The occurrence of tail biting is one of the most important animal welfare problems in pig farming and needs to be recognised early to reduce injuries and suffering. The posture of the tail could be...
Mocho, J.-P., Collymore, C., Farmer, S. C. et al. 2022. FELASA-AALAS recommendations for monitoring and reporting of laboratory fish diseases and health status, with an emphasis on zebrafish (Danio rerio). Comparative Medicine 72(3), 127-148.
The exchange of fish for research may expose an aquatic laboratory to pathogen contamination as incoming fish can introduce bacteria, fungi, parasites, and viruses capable of affecting both experimental results and fish and personnel health...
Guevara, R. D., Pastor, J. J., Manteca, X. et al. 2022. Systematic review of animal-based indicators to measure thermal, social, and immune-related stress in pigs. PLoS ONE 17(5), e0266524.
The intense nature of pig production has increased the animals’ exposure to stressful conditions, which may be detrimental to their welfare and productivity. Some of the most common sources of stress in pigs are extreme...
Lei, Y., Dong, P., Guan, Y. et al. 2022. Postural behavior recognition of captive nocturnal animals based on deep learning: A case study of Bengal slow loris. Scientific Reports 12(1), 7738.
The precise identification of postural behavior plays a crucial role in evaluation of animal welfare and captive management. Deep learning technology has been widely used in automatic behavior recognition of wild and domestic fauna species...
Wiechers, D.-H., Brunner, S., Herbrandt, S. et al. 2021. Analysis of hair cortisol as an indicator of chronic stress in pigs in two different farrowing systems. Frontiers in Veterinary Science 8, 605078.
Confinement to farrowing crates is known to prevent sows from performing natural behavior, impairing animal welfare and possibly causing chronic stress. Hair cortisol analyses are increasingly used to detect chronic stress in animals. In the...
Bolt, L. M. 2021. Agonistic vocalization behaviour in the male ring-tailed lemur (Lemur catta). Primates 62(2), 417–430.
Vocalizations are used by group-living animals as aggressive and submissive signals during agonistic interactions, and are also used to maintain dominance hierarchies in many species. For gregarious strepsirrhines with large vocal repertoires and differentiated dominance...
Olson, M. J., Creamer, M., Horback, K. M. 2021. Identification of specific call types produced by pre-weaning gilts in response to isolation. Applied Animal Behaviour Science 234, 105203.
Monitoring the vocalizations produced by livestock in commercial facilities can be used to remotely assess the arousal, and perhaps welfare, of the animals. Domestic swine is an ideal candidate for this type of assessment as...
Berlinghieri, F., Panizzon, P., Penry-Williams, I. L. et al. 2021. Laterality and fish welfare - A review. Applied Animal Behaviour Science 236, 105239.
Humans interact with fishes in many contexts including aquaculture, scientific study and companion animals. In all of these contexts, fish welfare can be compromised through anthropogenic means. Concern for fish welfare has grown considerably in...
Coleman, K., Shapiro, S. J. (Eds.). 2021. Behavioral Biology of Laboratory Animals (1st ed). CRC Press, Boca Raton, FL.
This 30-chapter volume informs students and professionals about the behavioral biology of animals commonly housed in laboratory and other captive settings. Each species evolved under specific environmental conditions, resulting in unique behavioral patterns, many of...
Ryan, M., Waters, R., Wolfensohn, S. 2021. Assessment of the welfare of experimental cattle and pigs using the animal welfare assessment grid. Animals 11(4), 999.
The Animal Welfare Assessment Grid (AWAG) is a method for assessing quality of life, originally designed for experimental primates. This study adapts the AWAG for use in cattle and pigs, by adapting the factors included...
Shao, H., Pu, J., Mu, J. 2021. Pig-posture recognition based on computer vision: Dataset and exploration. Animals 11(5), 1295.
Posture changes in pigs during growth are often precursors of disease. Monitoring pigs’ behavioral activities can allow us to detect pathological changes in pigs earlier and identify the factors threatening the health of pigs in...
Manell, E., Hedenqvist, P., Jensen-Waern, M. 2021. Training pigs for oral glucose tolerance test—Six years’ experience of a refined model. Animals 11(6), 1677.
Animal models of human diseases are important in biomedical research. When using animals for scientific purposes, the 3Rs (replace, reduce, refine) should be considered. Refinement of animal models is essential to ensure best use of...
Besteiro, R., Arango, T., Ortega, J. et al. 2021. Long-term measurement of piglet activity using passive infrared detectors. Animals 11(6), 1607.
Measuring animal activity is useful for monitoring animal welfare in real time. In this regard, passive infrared detectors have been used in recent years to quantify piglet activity because of their robustness and ease of...
Steagall, P. V., Bustamante, H., Johnson, C. B. et al. 2021. Pain management in farm animals: Focus on cattle, sheep and pigs. Animals 11(6), 1483.
Pain causes behavioral, autonomic, and neuroendocrine changes and is a common cause of animal welfare compromise in farm animals. Current societal and ethical concerns demand better agricultural practices and improved welfare for food animals. These...
Whittaker, A. L., Golder-Dewar, B., Triggs, J. L. et al. 2021. Identification of animal-based welfare indicators in captive reptiles: A Delphi consultation survey. Animals 11(7), 2010.
There is an increasing focus on evidence-based welfare assessment by animal care staff in zoos, along with a strong interest in animal welfare by the zoo-visiting public, to the extent that this can influence their...

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