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. 
Bergamasco, L., Edwards-Callaway, L. N., Bello, N. M. et al. 2021. Unmitigated surgical castration in calves of different ages: Electroencephalographic and neurohormonal findings. Animals 11(6), 1791.

Castration is a common management procedure employed in North American cattle production and is known to cause a pain response. The present study was designed to investigate the effect of unmitigated surgical castration on the...

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...

Stow, R., Kendrick, J., Ibbotson, N. et al. 2021. A new group housing approach for non-human primate metabolism studies. Journal of Pharmacological and Toxicological Methods 107, 106947.

Understanding the absorption, distribution, metabolism and excretion (ADME) of candidate drugs in preclinical species is an integral part of the safety and efficacy evaluation in drug development. For this purpose, the housing of single animals...

Houser, L. A., Ramsey, C., de Carvalho, F. M. et al. 2021. Improved training and semen collection outcomes using the closed box chair for macaques. Animals 11(8), 2384.

Collaborative semen collection in monkeys is a valuable tool in research, animal collection management, and conservation efforts. To obtain samples, monkeys are often restrained in open restraint chairs (ORC) with the “pole and collar” technique...

Pomerantz, O., Capitanio, J. P. 2021. Temperament predicts the quality of social interactions in captive female rhesus macaques (Macaca mulatta). Animals 11(8), 2452.

Previous reports suggest that female macaques with greater similarity in emotionality and nervous temperament, as evaluated in a well-established BioBehavioral Assessment (BBA) at the California National Primate Research Center, were more likely to form successful...

Prior, H., Blunt, H., Crossman, L. et al. 2021. Refining procedures within regulatory toxicology studies: Improving animal welfare and data. Animals 11(11), 3057.

During the development of potential new medicines or agrochemicals, an assessment of the safety profile to humans and environmental species is conducted using a range of different in silico and in vitro techniques in conjunction...

Verjat, A., Devienne, P., Rödel, H. G. et al. 2021. More exploratory house mice judge an ambiguous situation more negatively. Animal Cognition 24(1), 53–64.

Exploration tendency, one of the most investigated animal personality traits, may be driven by either positive (when seeking interesting information) or negative (to reduce the uncertainty of the environment) affective/emotional profiles. To disentangle the valence...

Espinoza, C., Lomax, S., Windsor, P. 2020. The effect of topical anaesthesia on the cortisol responses of calves undergoing dehorning. Animals 10(2), 312.

Dehorning causes pain and distress to cattle, and there is a need to provide effective and practical analgesia to improve animal welfare. We conducted an experiment to determine the effect of a modified post-operative topical...

Neave, H. W., Costa, J. H. C., Weary, D. M. 2020. Long-term consistency of personality traits of cattle. Royal Society Open Science 7(2), 7191849.

Personality is often defined as the behaviour of individual animals that is consistent across contexts and over time. Personality traits may become unstable during stages of ontogeny from infancy to adulthood, especially during major periods...

Adcock, S., Tucker, C. B. 2020. Conditioned place preference reveals ongoing pain in calves 3 weeks after disbudding. Scientific Reports 10(1), 3849.

Hot-iron disbudding, a routine procedure that prevents horn bud growth through cauterization, is painful for calves. The resulting burns remain sensitive to touch for weeks, but it is unknown whether calves experience ongoing, non-evoked pain...

Nøgaard, S. A., Sand, F. W., Sørensen, D. B. et al. 2020. Four- and six-hour urinary albumin excretion is a valuable alternative to 24-h urinary albumin excretion in male db/db mice. Animal Welfare 29(2), 143-149.

In mouse (Mus musculus) models of diabetic nephropathy (DN), one of the most important read-outs is the 24-h urinary albumin excretion (UAE). The 24-h urine collection is usually performed by single housing mice in metabolic...

Whittaker, A. L., Barker, T. H. 2020. The impact of common recovery blood sampling methods, in mice (Mus musculus), on well-being and sample quality: A systematic review. Animals 10(6), 989.

Blood sampling is often performed in laboratory mice. Sampling techniques have the potential to cause pain, distress and impact on lifetime cumulative experience. In spite of institutions commonly providing guidance to researchers on these methods...

Ballantine, A., Rodgers, D., Watts, C. et al. 2020. The cotton rat – a new challenge. Animal Technology and Welfare 19(1), 92-95.

This poster describes how the Animal Technologists at Envigo adapted their current practices and procedures for a new species at their laboratory: the cotton rat. The paper describes cotton rat biology and behaviour; housing; environmental...

Lawrence, M. J., Raby, G. D., Teffer, A. K. et al. 2020. Best practices for non-lethal blood sampling of fish via the caudal vasculature. Journal of Fish Biology 97(1), 4–15.

Blood sampling through the caudal vasculature is a widely used technique in fish biology for investigating organismal health and physiology. In live fishes, it can provide a quick, easy and relatively non‐invasive method for obtaining...

Schoiswohl, J., Stanitznig, A., Waiblinger, S. et al. 2020. Suppression of horn growth in cattle by clove oil and isoeugenol. Journal of Veterinary Behavior 36, 1-3.

The purpose of the disbudding of cattle is to decrease the number and severity of both deliberate and accidental injuries to other animals or workers caused by horned animals. The most commonly used method is...

Reinhardt, V. (ed.) 2020. It’s Okay to Cry - Discussions by the Laboratory Animal Refinement & Enrichment Forum [LAREF], Volume V. Animal Welfare Institute, Washington, DC.

This is the 5th volume of selected discussions that took place on the electronic Laboratory Animal Refinement & Enrichment Forum between February 2016 and December 2019. The forum was created in October 2002; it allows...

Lecorps, B., Nogues, E., von Keyserlingk, M. A. G. et al. 2020. Pessimistic dairy calves are more vulnerable to pain-induced anhedonia. PLOS ONE 15(11), e0242100.

Pain induces deficits in appreciation of rewards (i.e. anhedonia) and variation in response to pain may be partly explained by individual differences in general expectations (i.e. optimism). Dairy calves are routinely subjected to painful procedures...

Meyer, N., Kröger, M., Thümmler, J. et al. 2020. Impact of three commonly used blood sampling techniques on the welfare of laboratory mice: Taking the animal’s perspective. PLOS ONE 15(9), e0238895.

Laboratory mice are the most frequently used animals in biomedical research. In accordance with guidelines for humane handling, several blood sampling techniques have been established. While the effects of these procedures on blood quality and...

Frahm, S., Di Giminiani, P., Stanitznig, A. et al. 2020. Nociceptive threshold of calves and goat kids undergoing injection of clove oil or isoeugenol for disbudding. Animals 10(7), 1228.

In this preliminary study, we compared changes in mechanical nociceptive thresholds (MNT) of calves and goat kids injected with clove oil or isoeugenol under the horn bud as a potential, more welfare-friendly alternative to hot-iron...

Abela, C. 2020. Alternative training method using a mouse simulator in intravenous lateral tail vein procedures. Animal Technology and Welfare 19(3), 249-250.

The purpose of this study was to reduce or replace mouse cadavers for use in procedural training. All participants had mixed experience in various technical procedures such as oral gavage, intraperitoneal injections, etc., but none...

Mills, P. C., Ghodasara, P., Satake, N. et al. 2020. A novel transdermal ketoprofen formulation provides effective analgesia to calves undergoing amputation dehorning. Animals 10(12), 2442.

There is a critical need to ensure that all cattle undergoing surgical husbandry procedures are provided effective pain relief. Non-steroidal anti-inflammatory drugs (NSAIDs) are most commonly used, and typically are administered by intramuscular (IM) injection...

Saville, J. W., Ross, J. A., Trefz, T. et al. 2020. Development and field validation of lidocaine-loaded castration bands for bovine pain mitigation. Animals 10(12), 2363.

Castration is among the most common management procedures performed in the dairy and beef cattle industries and is mainly performed by surgery or elastic banding. Despite the various benefits of castration, all methods produce pain...

Gjendal, K., Kiersgaard, M. K., Abelson, K. et al. 2020. Comparison of sublingual, facial and retro-bulbar blood sampling in mice in relation to animal welfare and blood quality. Journal of Pharmacological and Toxicological Methods 103, 106680.

Introduction: Repeated blood sampling is a common procedure in laboratory mice, but at present it is unknown which technique has the least impact on the animals when large or repeated blood samples are required. Retro-bulbar...

Van der Saag, D., Lomax, S., Windsor, P. A. et al. 2019. Effect of lignocaine and a topical vapocoolant spray on pain response during surgical castration of beef calves. Animals 9(4), 126.

This study assessed the efficacy of pre-operative injected lignocaine and peri-operative topical vapocoolant spray, administered as most practical for incorporation into routine calf castration procedures. Calves were randomly allocated to: (1) sham castration (SHAM); (2)...

Lutz, J., Burla, J.-B., Gygax, L. et al. 2019. Horned and dehorned dairy cows differ in the pattern of agonistic interactions investigated under different space allowances. Applied Animal Behaviour Science 218, 104819.

Limited space in dairy cattle farming is associated with frequent encounters between cows, often resulting in agonistic interactions and injuries, especially in horned cows. Previous studies with dairy cows investigated space allowances in the waiting...