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. 
Toth, L. A. 2018. Identifying and implementing endpoints for geriatric mice. Comparative Medicine 68(6), 439–451.

The types of changes in physical appearance and behavior that occur in elderly people similarly develop in elderly animals. Signs and symptoms that might cause concern in younger people or mice may be normal in...

Edwards, G. L., Michael, J. A., Parks., A. 2018. Agricultural animals as biomedical models: Occupational health and safety considerations. ILAR Journal 59(2), 161-167.

The use of agricultural animals in biomedical research is increasing. Their overall size and metabolic rate, organ size, longer gestation period, and other physiological similarities make them good candidates for animal models of human disease...

O’Rourke, D. P., Baccanale, C. L., Stoskopf, M. K. 2018. Nontraditional laboratory animal species (cephalopods, fish, amphibians, reptiles, and birds). ILAR Journal 59(2), 168-176.

Aquatic vertebrates and cephalopods, amphibians, reptiles, and birds offer unique safety and occupational health challenges for laboratory animal personnel. This paper discusses environmental, handling, and zoonotic concerns associated with these species.

Schmidek, A., Nogueira de Oliveira, B., Trindade, P. et al. 2018. Gently handled foals generalize responses to humans. Journal of Animal Behaviour and Biometeorology 6(1), 1-5.

Equines perform tasks along humans, and there are evidences and controversies that they are able to discriminate between familiar and unfamiliar humans. This study assessed whether foals can discriminate between humans in terms of familiarity...

Bayne, K. 2018. Environmental enrichment and mouse models: Current perspectives. Animal Models and Experimental Medicine 1(2), 82-90.

The provision of environmental enrichment to numerous species of laboratory animals is generally considered routine husbandry. However, mouse enrichment has proven to be very complex due to the often contradictory outcomes (animal health and welfare...

Larsen, R. A., Peveler, J. L., Klutzke, J. B. et al. 2017. Effects of daily restraint with and without injections on skeletal properties in C57BL/6NHsd mice. Lab Animal 46(7), 299-301.

Studies typically involve groups of animals that are injected with placebo compounds. As there are studies that demonstrate that restraint and injection can affect behavior and corticosteroid levels in rodents, the basis of such placebo...

Nordquist, R., van der Staay, F., van Eerdenburg, F. et al. 2017. Mutilating procedures, management practices, and housing conditions that may affect the welfare of farm animals: Implications for welfare research. Animals 7(2), 12.

A number of mutilating procedures, such as dehorning in cattle and goats and beak trimming in laying hens, are common in farm animal husbandry systems in an attempt to prevent or solve problems, such as...

Waters, J. 2017. Time for change? Practicalities of implementing non-aversive methods for handling mice. Animal Technology and Welfare 16(1), 47-56.

Recent studies have shown that the method choice for handling laboratory mice is important to animal welfare. In 2015, 60% of all animals used in Home Office procedures were laboratory mice. Given the large number...

Hawkins, P., McNeilly, A., Watson, J. et al. 2017. Report of the 2016 RSPCA/UFAW Rodent and Rabbit Welfare Group meeting. Animal Technology and Welfare 16(2), 77-86.

The RSPCA/UFAW Rodent (and now Rabbit) Welfare Group held a one-day meeting on 1 November 2016 at the University of Edinburgh and was attended by 70 delegates. Presentation topics included refinements in blood sampling rodents...

Pereira-Figueiredo, I., Costa, H., Carro, J. et al. 2017. Behavioural changes induced by handling at different timeframes in Lusitano yearling horses. Applied Animal Behaviour Science 196, 36-43.

Recent interest has focused on the advantage of intensely handling young horses, as a good tool for improving emotional reactivity and thence trainability. Its effectiveness remains controversial, suggesting it might depend on the right timeframe...

Vullo, C., Carluccio, A., Robbe, D. et al. 2017. Guaiphenesin-ketamine-xylazine infusion to maintain anesthesia in mules undergoing field castration. Acta Veterinaria Scandinavica 59(1), 67.

In order to determine whether a combination of guaiphenesin, ketamine and xylazine can induce safe and satisfactory anaesthesia in mules undergoing field castration, eight healthy adult intact male mules were employed. They were premedicated with...

McMillan, J. L., Bloomsmith, M. A., Prescott, M. J. 2017. An international survey of approaches to chair restraint of nonhuman primates. Comparative Medicine 67(5), 442–451.

Specifically designed restraint chairs are the preferred method of restraint for research studies that require NHP to sit in place for sustained periods of time. In light of increasing emphasis on refinement of restraint to...

Ali, A. B. A., Gutwein, K. L., Heleski, C. R. 2017. Assessing the influence of upper lip twitching in naive horses during an aversive husbandry procedure (ear clipping). Journal of Veterinary Behavior 21, 20-25.

When engaging in procedures that horses may find aversive, restraint methods are often used to help ensure safety of both horse and handler. Twitching is a common restraint method, but its use is sometimes considered...

Gardiner, P. 2016. Going outside ASPA guidelines. Animal Technology and Welfare 15(1), 47-52.

This article will discuss an improved and refined technique used for working and caring for a group of diabetic mice. As a team of animal technologists, academics and named veterinary surgeon, we developed a new...

Robertson, A. 2016. Refinement in post-surgical recovery. Animal Technology and Welfare 15(1), 62-63.

Pre- and post-surgical care includes providing the animals with a soft version of their standard Irradiated diet. Food pellets are soaked in sterile water and this turns into a mash. This ensures that the animals...

Lidster, K., Jefferys, J. G., Blümcke, I. et al. 2016. Opportunities for improving animal welfare in rodent models of epilepsy and seizures. Journal of Neuroscience Methods 260, 2-25.

Animal models of epilepsy and seizures, mostly involving mice and rats, are used to understand the pathophysiology of the different forms of epilepsy and their comorbidities, to identify biomarkers, and to discover new antiepileptic drugs...

Herndon, N. L., Bandyopadhyay, S., Hod, E. A. et al. 2016. Sustained-release buprenorphine improves postsurgical clinical condition but does not alter survival or cytokine levels in a murine model of polymicrobial sepsis. Comparative Medicine 66(6), 455–462.

Cecal ligation and perforation (CLP) is a common technique for studying sepsis in mice. Because of the invasiveness of the procedure and its effects on clinical condition, many animal care and use committees require the...

Neveux, C., Ferard, M., Dickel, L. et al. 2016. Classical music reduces acute stress of domestic horses. Journal of Veterinary Behavior 15, 81. (12th International Society of Equitation Science (ISES) Conference Abstract)

Domestic horses are regularly subjected to stressful situations due to management practices, such as social isolation, transport and farriery or, in general due to exposure to new/sudden stimuli. These situations may eventually be harmful to...

Watson, J., McDonnell, S. 2016. Effects of three non-confrontational handling techniques on the behavior of horses during a simulated mildly aversive veterinary procedure. Journal of Veterinary Behavior 15, 85-86. (12th International Society of Equitation Science (ISES) Conference Abstract)

During mildly aversive healthcare procedures, horses often exhibit behaviors that may interrupt or prolong the procedure. Handler response often includes increased restraint and/or positive punishment, which can be ineffective or counterproductive. The purpose of this...

Jarvi, J., Tewodros, M., Wang, M. et al. 2016. Refining the PDX mouse model: Development of a less invasive and disposable tumor engraftment process. Laboratory Animal Science Professional 4(1) (March), 47-51.

Patient-derived xenograft (PDX) models are created using fragments of human tumors subcutaneously implanted into immunodeficient mice. Solid tumor engraftment of mice is commonly performed with a 10-13 gauge trocar needle under general anesthesia. In this...

Lidster, K., Jefferys, J. G., Blümcke, I. et al. 2016. Opportunities for improving animal welfare in rodent models of epilepsy and seizures. Journal of Neuroscience Methods 260, 2-25.

Animal models of epilepsy and seizures, mostly involving mice and rats, are used to understand the pathophysiology of the different forms of epilepsy and their comorbidities, to identify biomarkers, and to discover new antiepileptic drugs...

Mufford, J. T., Paetkau, M.J., Flood, N.J. et al. 2016. The development of a non-invasive behavioral model of thermal heat stress in laboratory mice (Mus musculus). Journal of Neuroscience Methods 268, 189-195.

Background: Many behavioral and physiological studies of laboratory mice employ invasive methods such as radio telemetry to measure key aspects of behavior and physiology. Radio telemetry requires surgical implants, which may impact mouse health and...

Faller, K. M., McAndrew, D. J., Schneider, J. E. et al. 2015. Refinement of analgesia following thoracotomy and experimental myocardial infarction using the Mouse Grimace Scale. Experimental Physiology 100(2), 164-172.

What is the central question of this study? There is an ethical imperative to optimize analgesia protocols for laboratory animals, but this is impeded by our inability to recognize pain reliably. We examined whether the...

Hawkins, P., Armstrong, R., Boden, T. et al. 2015. Applying refinement to the use of mice and rats in rheumatoid arthritis research. Inflammopharmacology 23, 131–150.

Rheumatoid arthritis (RA) is a painful, chronic disorder and there is currently an unmet need for effective therapies that will benefit a wide range of patients. The research and development process for therapies and treatments...

Bode, A. E., Barber, H. 2014. Use of vinyl nonadhesive tape as an alternative for positioning rodents in small animal imaging. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 597-598. (Abstract #P185).

Specific positioning for different imaging modalities is essential in our small animal imaging core. While we have different animal holders designed to position the animal inside the MRI, additional securing of the animal to the...