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. 
Razal, C., Miller, L. 2021. The effect of different types of environmental enrichment on Humboldt penguin Spheniscus humboldti behaviour. Journal of Zoo and Aquarium Research, 9(4), 281-286.

Penguins exhibited at zoological institutions can be prone to a foot condition known as pododermatitis (or bumblefoot) if they have high levels of sedentary behaviour. Providing penguins with environmental enrichment can increase activity levels by...

Lambert, K. 2021. DIY: Acacia gum hanging saucer. Laboratory Animal Science Professional 9(5) (September/October), 50.

This article describes the ingredients, supplies, and directions to make this DIY hanging item, which is great for NHP and swine.

Lambert, K. 2021. DIY: Busy boxes. Laboratory Animal Science Professional 9(6) (November/December), 32.

This article describes the ingredients and directions to make this simple DIY destructible enrichment for NHP and swine.

Thatcher, D. 2021. The use of a borescope for Goodfellow’s tree kangaroo (Dendrolagus goodfellowi) husbandry. RATEL (Journal of the Association of British and Irish Wild Animal Keepers) 48(2), 10-11.

In 2017 Bristol Zoological Gardens received two Goodfellow tree kangaroos. As this was a new marsupial species for the collection, keepers attended the European Symposium on tree kangaroos to better improve our husbandry, knowledge and...

Santymire, R. M., Adkin, A., Bernier, D. et al. 2021. Validating the use of fecal glucocorticoid metabolite analysis to assess the adrenocortical activity of the zoo-housed Sichuan takin (Budorcas taxicolor tibetana). Zoo Biology 40(5), 479-484.

With limited information known about the zoo-housed Sichuan takin (Budorcas taxicolor tibetana), there is a need to gain more knowledge about their basic physiology to be able to better assess their well-being. Our goal was...

Brox, B. W., Edwards, K., Buist, N. A. et al. 2021. Investigating food preference in zoo-housed meerkats. Zoo Biology 40(6), 517-526.

Understanding food preference among animals in human care can support improvements to welfare through training and day-to-day care (e.g., diet management). Little has been published about food preference in zoo-housed meerkats. Assessing meerkat food preference...

Podturkin, A. A. 2021. In search of the optimal enrichment program for zoo-housed animals. Zoo Biology 40(6), 527-540.

Zoo-housed animals are regularly exposed to new forms of environmental enrichment to make their lives less predictable. However, providing new enrichment can have unpredictable effects. We evaluated the effectiveness of two enrichment regimes: (1) providing...

Small, A., Fetiveau, M., Smith, R. et al. 2021. Three studies evaluating the potential for lidocaine, bupivacaine or procaine to reduce pain-related behaviors following ring castration and/or tail docking in lambs. Animals 11(12), 3583.

The use of local anesthesia at the time of ring castration and tail docking can improve lamb welfare. However, few local anesthetics are registered for sheep, and data on their duration of effect is limited...

Robstad, C. A., Lodberg-Holm, H. K., Mayer, M. et al. 2021. The impact of bio-logging on body weight change of the Eurasian beaver. PLOS ONE 16(12), e0261453.

Bio-logging is a common method to collect ecological data on wild animals, but might also induce stress, reduce body condition, and alter behavior. Eurasian beavers (Castor fiber) are a semi-aquatic and nocturnal species that are...

Jones, G. 2021. Giant anteater (Myrmecophaga tridactyla) husbandry training. RATEL (Journal of the Association of British and Irish Wild Animal Keepers) 48(3), 27-30.

This project was started to give staff at Wild Discovery a better understanding of our giant anteater’s health and physical condition through husbandry training and conditioning. The aim of the training was to allow staff...

Costantino, A., Fabrizio, E., Calvet, S. 2021. The role of climate control in monogastric animal farming: The effects on animal welfare, air emissions, productivity, health, and energy use. Applied Sciences 11(20), 9549.

In the last decades, an engineering process has deeply transformed livestock houses by introducing fine-tuned climate control systems to guarantee adequate indoor climate conditions needed to express the maximum genetic potential of animals and to...

Edes, A. N., Baskir, E., Bauman, K. L. et al. 2021. Effects of crowd size, composition, and noise level on pool use in a mixed-species penguin colony. Animal Behavior and Cognition 8(4), 507–520.

Studies on how visitors affect penguins in human care report a mixture of negative, neutral, and positive impacts on behavior and physiology. Swimming is a highly motivated behavior that may promote positive welfare in penguins...

Fernandez, E. J., Myers, M., Hawkes, N. C. 2021. The effects of live feeding on swimming activity and exhibit use in zoo Humboldt penguins (Spheniscus humboldti). Journal of Zoological and Botanical Gardens 2(1), 88–100.

Penguins are considered among the most popular animals for zoo and aquarium visitors to observe. Swimming is considered a desirable activity, both for the visitor experience and the welfare of the penguins. However, little is...

Jones, M., Gartland, K. N., Fuller, G. 2021. Effects of visitor presence and crowd size on zoo-housed red kangaroos (Macropus rufus) during and after a covid-19 closure. Animal Behavior and Cognition 8(4), 521–537.

Macropods, particularly kangaroos and wallabies, are common species included in walk-through habitats that put them in close proximity to zoo visitors. However, there has been little research into how visitor presence and density impact the...

Melfi, V. A., Dorey, N. R., Ward, S. (Eds.) 2020. Zoo Animal Learning and Training. John Wiley & Sons: Hoboken, NJ, 384 pp.

Comprehensively explains animal learning theories and current best practices in animal training within zoos. This accessible, up-to-date book on animal training in a zoo/aquaria context provides a unified approach to zoo animal learning, bringing together...

Kalafut, K. L., Kinley, R. 2020. Using radio frequency identification for behavioral monitoring in little blue penguins. Journal of Applied Animal Welfare Science 23(1), 62-73.

A common goal of captive animal institutions is to create environments that allow for the most naturalistic behavior from their animals. Behavioral data is often used as a measure of how an animal is thriving...

Andreasen, S. N., Sandøe, P., Waiblinger, S. et al. 2020. Negative attitudes of Danish dairy farmers to their livestock correlates negatively with animal welfare. Animal Welfare 29(1), 89-98.

Positive stockperson attitudes to his or her animals is associated with a positive behavioural response in the animals and in other indicators assumed to reflect a high level of welfare as well as increased productivity...

Soriano, V. S., Stamm, F. O., Taconeli, C. A. et al. 2020. To dock or not to dock? Faecal soiling measurement in sheep. Animal Welfare 29(1), 81-87.

Faecal soiling is one of the welfare indicators in the AWIN welfare assessment protocol for sheep (Ovis aries) and is measured by dag scores. Studies on dag scoring for ewes with docked and undocked tails...

Harris, C., White, P., Mohler, V. et al. 2020. Electroencephalography can distinguish between pain and anaesthetic intervention in conscious lambs undergoing castration. Animals 10(3), 428.

Australian sheep routinely undergo painful surgical husbandry procedures without anaesthesia or analgesia. Electroencephalography (EEG) has been shown to be a successful measure of pain in livestock under a general anaesthetic. The aim of this study...

Kells, N. J., Beausoleil, N. J., Godfrey, A. J. R. et al. 2020. Effect of analgesic strategies on pain behaviour associated with combined ring castration and hot iron tail docking in Merino lambs. Applied Animal Behaviour Science 222, 104914.

Most countries don’t require analgesia to be provided to lambs

Vittis, Y., Kaler, J. 2020. Environmental and field characteristics associated with lameness in sheep: A study using a smartphone lameness app for data recording. Veterinary Record 186(12), 384.

Sheep lameness is a major concern among farmers and policymakers with significant impacts on animal welfare standards as well as financial and production performance. The present study attempts to identify the relative importance of environmental...

Harvey, A., Beausoleil, N., Ramp, D. et al. 2020. A ten-stage protocol for assessing the welfare of individual non-captive wild animals: Free-roaming horses (Equus ferus caballus) as an example. Animals 10(1), 148.

Knowledge of the welfare status of wild animals is vital for informing debates about the ways in which we interact with wild animals and their habitats. Currently, there is no published information about how to...

Ross, S. R., Leinwand, J. G. 2020. A review of research in primate sanctuaries. Biology Letters 16(4), 1620200033.

While non-human primate studies have long been conducted in laboratories, and more recently at zoological parks, sanctuaries are increasingly considered a viable setting for research. Accredited sanctuaries in non-range countries house thousands of primates formerly...

Zemanova, M. A. 2020. Towards more compassionate wildlife research through the 3Rs principles: Moving from invasive to noninvasive methods. Wildlife Biology 2020(1), no page numbers.

Research in ecology and wildlife biology remains crucial for increasing our knowledge and improving species management and conservation in the midst of the current biodiversity crisis. However, obtaining information on population status often involves invasive...

Latham, A., Davidson, B., Warburton, B. et al 2020. Efficacy and animal welfare impacts of novel capture methods for two species of invasive wild mammals in New Zealand. Animals 10(1), 44.

All capture methods impose animal welfare impacts, but these impacts are rarely quantified or reported. We present data from two wildlife capture studies that trialled new methods for capturing Bennett’s wallabies (Notamacropus rufogriseus) and red...