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. 
Morgado, J. N., Lamonaca, E., Santeramo, F. G. et al. 2023. Effects of management strategies on animal welfare and productivity under heat stress: A synthesis. Frontiers in Veterinary Science 10, 1145610.

Climate change includes different dramatic events, and among them, heat stress exposition is the strongest phenomenon affecting the livestock sector. The effects of heat stress events on animal welfare are complex and the economic impacts...

Nunes, S. 2023. Animal-friendly behavioral testing in field studies: Examples from ground squirrels. Frontiers in Behavioral Neuroscience 17.

Field studies of behavior provide insight into the expression of behavior in its natural ecological context and can serve as an important complement to behavioral studies conducted in the lab under controlled conditions. In addition...

Olczak, K., Penar, W., Nowicki, J. et al. 2023. The role of sound in livestock farming—Selected aspects. Animals 13(14), 2307.

To ensure the optimal living conditions of farm animals, it is essential to understand how their senses work and the way in which they perceive their environment. Most animals have a different hearing range compared...

Nicolis, I. N., Beale, C. N., Bidot, W. A. et al. 2022. Performance and consistency of circulating warm water blankets for rodents. JAALAS 61(1), 96-100.

General anesthesia as used for rodent research can have adverse effects on physiologic mechanisms. Thermoregulation is often greatly inhibited, with resultant deleterious effects on cardiac and respiratory function. These potential effects can be mitigated by...

Berthel, R., Simmler, M., Dohme-Meier, F. et al. 2022. Dairy sheep and goats prefer the single components over the mixed ration. Frontiers in Veterinary Science 9, 1017669.

Mixed rations provide ruminants with a balanced diet by aiming to prevent selective feeding. However, this is a natural behavior of sheep and goats based on their dietary needs and the nutritional properties of feedstuffs...

Ragland, N. H., Compo, N. R., Wiltshire, N. et al. 2022. Housing and husbandry alternatives for naked mole rat colonies used in research settings. JAALAS 61(5), 412-418.

Naked mole rats (Heterocephalus glaber) are a unique rodent species originating in Africa and are increasingly being used in research. Their needs and characteristics differ from those of other rodents used in research. Unique housing...

Abazaris, J., Hashway, S. 2022. Vole husbandry at Colorado University Boulder. Laboratory Animal Science Professional 10(4) (July/August), 12-15.

Since they arrived at CU Boulder, we have learned a lot about the voles from the laboratory, other institutions, and our trial-and-error. We hope this information can be helpful to any considering adding voles to...

Adams, C. R., Park, T. J. 2022. The husbandry and management of naked mole-rats (Heterocephalus glaber). Laboratory Animal Science Professional 10(4) (July/August), 16-18.

Naked mole-rats (NMRs) have unique husbandry requirements that need to be considered when maintaining them in captivity. We have successfully maintained NMRs at the University of Illinois at Chicago for more than 20 years. This...

Mayes, B. T., Tait, L. A., Cowley, F. C. et al. 2022. Stocking density, restricted trough space, and implications for sheep behaviour and biological functioning. Frontiers in Veterinary Science 9, 965635.

Stocking density and trough space allowance can potentially impact sheep welfare during live export voyages. The aim of this study was to assess the welfare implications for sheep housed at five allometric stocking densities, with...

Fieschi-Méric, L., Ellis, C., Servini, F. et al. 2022. An improvement in enclosure design can positively impact welfare, reduce aggressiveness and stabilise hierarchy in captive Galapagos giant tortoises. Journal of Zoological and Botanical Gardens 3(4), 499–512.

The interest in the welfare of zoo animals, from both the public and the scientific community, has long been biased towards mammals. However, growing evidence of the complex behavioural repertoires of less charismatic animals, such...

Brooke Collins, E., Blackie, N. 2021. The impacts of waterproof insulated jackets on lamb performance on a UK lowland farm. Animals 11(1), 217.

The majority of lamb losses occur within the first two weeks of life, with cold stress being a major cause of lamb morbidity and mortality. This study investigated the effect of insulating lamb jackets on...

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...

Vis, A., Lammers, J. C. A. M., de Vroege, R. et al. 2021. Strategies to improve survival from surgery for heart valve implantation in sheep. Comparative Medicine 71(3), 235-239.

Sheep are a commonly used and validated model for cardiovascular research and, more specifically, for heart valve research. Implanting a heart valve on the arrested heart in sheep is complex and is often complicated by...

FELASA Working Group on Farm Animals: Berset, C. M., Caristo, M. E., Ferrara, F. et al. 2021. Federation of European Laboratory Animal Science Associations recommendations of best practices for the health management of ruminants and pigs used for scientific and educational purposes. Laboratory Animals 55(2), 117-128.

Most ruminants and pigs used for scientific and educational aims are bred not for these purposes but in a farm environment. Given the wide range of diseases that these species might have, ensuring that the...

Wilson-Welder, J. H., Frank, A. T. 2021. Use of food enrichment for medication delivery in large groups of sheep. Laboratory Animal Science Professional 9(3) (May/June), 40-43.

In a 2018 AALAS webinar on Sheep and Goat Analgesia, Dr. Susie Vogel, a small ruminant expert, introduced the concept of getting sheep and goats to willingly take medication by putting it in a tasty...

Dickinson, A. 2021. Maximising efficacy of your health monitoring programme. Animal Technology and Welfare 20(3), 255-257.

There are a multitude of health monitoring techniques/ methods available. It can be difficult to know which of these to use and when to use them. This is an attempt to simplify, maximise the efficacy...

Schmidt, T., Ferrara, F., Pobloth, A.-M. et al. 2021. Large farm animals used for research purposes: A survey on purchase, housing and hygiene management. Animals 11(8), 2158.

Background: Farm animals (FAs) are frequently used in biomedical research. Recommendations for the purchase, housing and health monitoring of these animals (sheep, goats, cattle and pigs) are still missing, and many institutes have developed their...

Watson, P. 2021. Management of naked mole rats (Heterocephalus glaber) at Chester Zoo. RATEL (Journal of the Association of British and Irish Wild Animal Keepers) 48(3), 24-26.

This species first arrived at Chester Zoo in June 2014 when a colony of 27 animals was imported from Dresden Zoo, Germany. As with any new species our journey with naked mole rats has not...

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...

Paredes, E., Costas, D. 2020. Non-lethal sex identification of sea urchins: Method and advantages. Lab Animal 49(1), 7–8.

A simple method for sex determination can reduce the number of sea urchins used in the lab and help to optimize experimental design. Our new methodology developed with Paracentrotus lividus is simple and inexpensive, requiring...

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...

Filliettaz, C., Maxwell, L., Dragon, M. et al. 2020. Novel bleeding techniques in hamsters. Laboratory Animal Science Professional 8(1) (January/February), 44-46.

Hamsters have historically been used in our pharmacokinetic (PK) studies using the retro-orbital (RO) bleeding technique to collect blood samples. If performed incorrectly, this technique has the potential for animal welfare complications not usually seen...

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...

Piirsalu, P., Kaart, T., Nutt, I. et al. 2020. The effect of climate parameters on sheep preferences for outdoors or indoors at low ambient temperatures. Animals 10(6), 1029.

Threshold temperatures for cold stress in sheep are not well understood, the available literature is somewhat dated and reports relate to winter temperatures that are relatively benign. Sheep’s preferences for outdoor versus indoor environments, when...

Mondragón-Ancelmo, J., García Hernández, P., Rojo Rubio, R. et al. 2020. Small flocks show higher levels of welfare in Mexican semi-intensive sheep farming systems. Journal of Applied Animal Welfare Science 23(3), 348-355.

In order to assess the level of sheep welfare in small traditional farms as compared with farms of increased size we evaluated several animal-based parameters and applied a modified Animal Needs Index (ANI) protocol in...