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. 
Desforges, E. 2021. Challenges and solutions surrounding environmental enrichment for dogs and cats in a scientific environment. Animals 11(10), 2980.

Dogs and cats housed in research-, kennel- and cattery-type settings are reliant on caregivers to optimise their day-to-day experiences and welfare. The goal is to provide enriching environments for physical, social and environmental control; behavioural...

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...

Mondin, C., Trestini, S., Trocino, A. et al. 2021. The economics of rabbit farming: A pilot study on the impact of different housing systems. Animals 11(11), 3040.

This research evaluates the economic sustainability of rabbit farms using different housing systems—bicellular (BI), conventional dual-purpose (DP) and enriched cages designed according to the World Rabbit Science Association guidelines (WRSA)—through a field-based study involving six...

Lange, A., Waiblinger, S., van Hasselt, R. et al. 2021. Effects of restraint on heifers during gentle human-animal interactions. Applied Animal Behaviour Science 243, 105445.

Gentle human-animal interactions can induce positive emotions in cattle and enhance their welfare. We investigated whether a change in the animals’ perceived control over the situation influences their perception of the interactions. We compared the...

Lomb, J., Mauger, A., von Keyserlingk, M. A. G. et al. 2021. Effects of positive reinforcement training for heifers on responses to a subcutaneous injection. Journal of Dairy Science 104(5), 6146-6158.

Cattle are subjected to routine procedures that require restraint and close contact to humans, which are both potentially aversive to the animal. Positive reinforcement training techniques may affect how animals perceive and respond to these...

Majecka, K., Pąsiek, M., Pietraszewski, D. 2020. Behavioural outcomes of housing for domestic dog puppies (Canis lupus familiaris). Applied Animal Behaviour Science 222, 104899.

Domestic dogs experience a sensitive period for learning during early life and conditions during this time can have important consequences in the adult. We investigated the effects of kennel environment during early life, comparing the...

Collins, S. L., Kull, J., Benham, C. et al. 2020. Comparison of penetrating and non-penetrating captive bolt in an alternative occipital approach in calves. Animal Welfare 29(1), 59-67.

The objective of this study was to describe the effect of penetrating or non-penetrating captive bolt using an occipital approach in 4–5 month old, Holstein steers weighing between 100–200 kg. Twelve calves were divided into...

Walker, J., Roman-Muniz, I., Edwards-Callaway, L. 2020. Timely euthanasia in the United States dairy industry–Challenges and a path forward. Animals 10(1), 71.

Euthanasia is a valuable management tool utilized on dairies to end the suffering of sick or debilitated cows. Euthanasia should be implemented if an animal’s pain cannot be adequately alleviated and if there is a...

Vecerek, V., Kamenik, J., Voslarova, E. et al. 2020. The impact of deviation of the stun shot from the ideal point on motor paralysis in cattle. Animals 10(2), 280.

The effect on motor paralysis of a deviation in the stun shot placement from the ideal point on cattle skulls was monitored in 627 bovine animals (271 bulls and 356 cows) stunned with a captive...

Shepley, E., Lensink, J., Leruste, H. et al. 2020. The effect of free-stall versus strawyard housing and access to pasture on dairy cow locomotor activity and time budget. Applied Animal Behaviour Science 224, 104928.

Dairy housing systems can have major implications on how freely cows move within their environment and how fully they can express their behavioral repertoire, impacting overall welfare. To ensure housing systems are meeting the needs...

Valadez-Noriega, M., Méndez-Gómez-Humarán, M. C., Rayas-Amor, A. A. et al. 2020. Effects of greenhouse roofs on thermal comfort, behavior, health, and finishing performance of commercial zebu steers in cold arid environments. Journal of Veterinary Behavior 35, 54-61.

The aim of this study was to determine the effects of two housing systems (thermal plastic greenhouse roofs—PGR—vs. without roof—PWR) on health, welfare, and finishing performance of zebu steers in cold arid environments. A total...

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...

Składanowska-Baryza, J., Ludwiczak, A., Pruszyńska-Oszmałek, E. et al. 2020. Effect of two different stunning methods on the quality traits of rabbit meat. Animals 10(4), 700.

The aim of the study was to assess the effect of two different stunning methods on the level of blood stress indicators (cortisol, insulin, glucose) and rabbit meat quality. The experiment was conducted on crossbreds...

Park, R. M., Foster, M., Daigle, C. L. 2020. A scoping review: The impact of housing systems and environmental features on beef cattle welfare. Animals 10(4), 565.

Housing systems and environmental features can influence beef cattle welfare. To date, little information has been synthesized on this topic. The aim of this scoping review was to examine the relationship between housing and welfare...

Zverev, C. 2020. Ferret influenza work at The Francis Crick Institute. Animal Technology and Welfare 19(1), 82-85.

This poster looks at the processes in place starting with the arrival of the ferrets from the Schedule 2 supplier, through the acclimatisation period and the influenza infection procedure until reaching the end point of...

Köbrunner, D., Waiblinger, S., Stetina, B. U. et al. 2020. Insight into husbandry conditions, health, and behavior of pet ferrets (Mustela putorius furo) among German-speaking ferret owners. Journal of Veterinary Behavior 37, 8-19.

Few data are published about different ferret husbandry practices in terms of housing, enrichment, feeding, social management, and the health status of ferrets. However, these factors are crucial for animal welfare and influence animal behavior...

Hedenqvist, P., Trbakovic, A., Mellgren, T. et al. 2020. The effect of housing environment on bone healing in a critical radius defect in New Zealand white rabbits. PLOS ONE 15(5), e0233530.

In animal studies on bone healing, the effect of housing space and physical activity are seldom taken into account. Bone formation was evaluated in New Zealand White rabbits (mean ± SEM BW: 3.9 ± 0.11...

Smid, A. M. C., Weary, D. M., von Keyserlingk, M. A. G. 2020. The influence of different types of outdoor access on dairy cattle behavior. Frontiers in Veterinary Science 7, 257.

Pasture access for dairy cows is highly valued both by cows and the public at large. When pasture access is not feasible, farmers can provide cows with alternative forms of outdoor access, such as an...

Turcsán, B., Tátrai, K., Petró, E. et al. 2020. Comparison of behavior and genetic structure in populations of family and kenneled beagles. Frontiers in Veterinary Science 7, 183.

In dogs, the social and spatial restriction associated with living in a kennel environment could lead to chronic stress and the development of abnormal behaviors (“kennel-dog syndrome”). However, little is known about how kenneled dogs...

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...

Munari, C., Ponzio, P., Macchi, E. et al. 2020. A multifactorial evaluation of different reproductive rhythms and housing systems for improving welfare in rabbit does. Applied Animal Behaviour Science 230, 105047.

The most widespread reproductive rhythm practiced in rabbit farming is based on artificial insemination (AI) performed at around 11 days pospartum. This approach results in high production rates, but requires high yearly replacement of animals...

Shepley, E., Lensink, J., Vasseur, E. 2020. Cow in Motion: A review of the impact of housing systems on movement opportunity of dairy cows and implications on locomotor activity. Applied Animal Behaviour Science 230, 105026.

As humans, we recognize the importance of exercise. We go to the gym, walk our dogs, and ride our horses. Even our hamsters get a wheel to run on. Considering this, it is surprising that...

Cortese, M., Brščić, M., Ughelini, N. et al. 2020. Effectiveness of stocking density reduction on mitigating lameness in a Charolais finishing beef cattle farm. Animals 10(7), 1147.

This study aimed at assessing whether a reduction in stocking density (SKD) would mitigate lameness and positively affect the performance and health of Charolais bulls in an Italian commercial farm. Bulls were distributed in groups...

McMahon, S. A., Wigham, E. 2020. ‘All Ears’: A questionnaire of 1516 owner perceptions of the mental abilities of pet rabbits, subsequent resource provision, and the effect on welfare. Animals 10(10), 1730.

Pet rabbit welfare is a hidden crisis: Inappropriately housed, fed, and not routinely provided healthcare—rabbits can often suffer painful conditions and shortened lifespans. This study provides novel understanding of owners’ perceptions of rabbits’ mental capabilities...

Zobel, G., Proudfoot, K., Cave, V. et al. 2020. The use of hides during and after calving in New Zealand dairy cows. Animals 10(12), 2255.

Isolation during calving is a common dairy cow behavior, however it has not been examined in large outdoor group settings. The provision of “hides” was monitored for its impact on calving location and cow–calf behavior...