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. 
Bacon, H. 2018. Behaviour-based husbandry—A holistic approach to the management of abnormal repetitive behaviors. Animals 8(7), 103.

The field of zoo animal welfare science has developed significantly over recent years. However despite this progress in terms of scientific research, globally, zoo animals still face many welfare challenges. Recently, animal welfare frameworks such...

Krebs, B., Marrin, D., Phelps, A. et al. 2018. Managing aged animals in zoos to promote positive welfare: A review and future directions. Animals 8(7), 116.

Improvements in veterinary care, nutrition, and husbandry of animals living in zoos have led to an increase in the longevity of these animals over the past 30 years. In this same time period, the focus...

Read, H., Perry, R. 2018. A refinement to Schedule 1. Animal Technology and Welfare 17(2), 117-120.

There are varying methods used for animal restraint and angle of injection. It remains unclear whether one method is more accurate than others. The primary objectives were to examine whether inverted restraint of rats resulted...

Beamish, G., Chapman, C., Lomax, A. 2018. Design by intravenous injection in the Syrian hamster. Animal Technology and Welfare 17(2), 124-125.

Repeated injections in rats and mice are typically done via the tail vein. For hamsters, the tail is not an option. In this paper we explore the development and refinement of IV dosing in the...

Nielsen, B. L. 2018. Making sense of it all: The importance of taking into account the sensory abilities of animals in their housing and management. Applied Animal Behaviour Science 205, 175-180.

In this selective review, examples are given of how different animal species use different sensory modalities in different ways. These examples serve to illustrate that we should not forget to take sensory abilities of the...

LaFollette, M. R., O’Haire, M. E., Cloutier, S. et al. 2018. A happier rat pack: The impacts of tickling pet store rats on human-animal interactions and rat welfare. Applied Animal Behaviour Science 203, 92-102.

Rats find initial interactions with humans frightening, which can lead to negative affect, and poor welfare. A handling technique called “tickling”, which mimics rat rough-and-tumble play, can be used to reduce these negative effects. When...

Connor, M., Lawrence, A. B., Brown, S. M. 2018. Associations between oxytocin receptor gene polymorphisms, empathy towards animals and implicit associations towards animals. Animals 8(8), 140.

Oxytocin has been well researched in association with psychological variables and is widely accepted as a key modulator of human social behaviour. Previous work indicates involvement of oxytocin receptor gene (OXTR) single nucleotide polymorphisms (SNPs)...

Mariti, C., Pirrone, F., Albertini, M. et al. 2018. Familiarity and interest in working with livestock decreases the odds of having positive attitudes towards non-human animals and their welfare among veterinary students in Italy. Animals 8(9), 150.

We investigated the attitudes of veterinary students towards animals and their welfare in Italy. Regression analyses revealed predictors that are significant in differentiating students’ scoring tendency based on their gender, familiarity, and intention to work...

Cornish, A., Wilson, B., Raubenheimer, D. et al. 2018. Demographics regarding belief in non-human animal sentience and emotional empathy with animals: A pilot study among attendees of an animal welfare symposium. Animals 8(10), 174.

Attitudes to animals are linked to beliefs about their ability to experience pain and suffering, their cognition, and their sentience. Education and awareness-raising play a pivotal role in increasing society’s consideration of non-human animal welfare...

Valros, A., Hänninen, L. 2018. Animal ethical views and perception of animal pain in veterinary students. Animals 8(12), 220.

Veterinary students face several ethical challenges during their curriculum. We used the Animal Ethics Dilemma to study animal ethical views of Finnish veterinary students, and also asked them to score the level of pain perception...

Nunamaker, E. A., Goldman, J. L., Adams, C. R. et al. 2018. Evaluation of analgesic efficacy of meloxicam and 2 formulations of buprenorphine after laparotomy in female Sprague-Dawley rats. JAALAS 57(5), 498–507.

Managing postoperative pain in rodents is an important part of any animal care and use program, and identifying an optimal analgesic plan for a surgical procedure is critical to providing for animal welfare. Opioids and...

Tamioso, P. R., Maiolino Molento, C. F., Boivin, X. et al. 2018. Inducing positive emotions: Behavioural and cardiac responses to human and brushing in ewes selected for high vs low social reactivity. Applied Animal Behaviour Science 208, 56-65.

Welfare concerns not only the absence of negative emotional experiences but also the presence of positive experiences. However, scientific investigation on positive emotions in farm animals has been long neglected. This study aimed to investigate...

LaFollette, M. R., O’Haire, M. E., Cloutier, S. et al. 2018. Practical rat tickling: Determining an efficient and effective dosage of heterospecific play. Applied Animal Behaviour Science 208, 82-91.

Laboratory rats may experience stress during handling which can reduce their welfare. Rat tickling, a handling technique that mimics aspects of rat rough-and-tumble play, has been found to induce positive affect based on production of...

Damián, J. P., Hötzel, M. J., Banchero, G. et al. 2018. Growing without a mother during rearing affects the response to stressors in rams. Applied Animal Behaviour Science 209, 36-40.

Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes...

Cole, J., Fraser, D. 2018. Zoo animal welfare: The human dimension. Journal of Applied Animal Welfare Science 21(S1), 49-58.

Standards and policies intended to safeguard nonhuman animal welfare, whether in zoos, farms, or laboratories, have tended to emphasize features of the physical environment. However, research has now made it clear that very different welfare...

Brando, S., Buchanan-Smith, H. M. 2018. The 24/7 approach to promoting optimal welfare for captive wild animals. Behavioural Processes 156, 83-95.

We have an ethical responsibility to provide captive animals with environments that allow them to experience good welfare. Husbandry activities are often scheduled for the convenience of care staff working within the constraints of the...

González-Pech, P. G., Marín-Tun, C. G., Valladares-González, D.A. et al. 2018. A protocol of human animal interaction to habituate young sheep and goats for behavioural studies. Behavioural Processes 157, 632-637.

Animal habituation is key to obtain reliable data on behavioural studies but detailed procedures to achieve it are scarce. This study designed a set of actions to habituate sheep and goats to human observers. Pelibuey...

Byrd, R., Boyd, S., Buckmaster, C. 2018. Rat thunder jacket— A zen experience. Laboratory Animal Science Professional 6(3) (September), 55-57.

Germ-free rats are fairly uncommon, relative to germ-free mice, and restraining these animals safely and effectively for compound administration and blood collection can be challenging. There are many commercially available varieties of restraint devices, but...

Falcón, W., Furrer, S., Bauert, M. et al. 2018. Evaluation of artificial heating sources for the thermoregulation of Aldabra giant tortoises (Aldabrachelys gigantea) in Zurich zoo. Zoo Biology 37(6), 458-465.

We recorded the thermoregulatory patterns of five Aldabra giant tortoises (Aldabrachelys gigantea) (25-193 kg) during spring (ZRH spring trial), after the installation of a heating area (concrete heat pad and basking lamp) at Zurich Zoo...

Hawkins, P., Golledge, H. D. R. 2018. The 9 to 5 Rodent − Time for Change? Scientific and animal welfare implications of circadian and light effects on laboratory mice and rats. Journal of Neuroscience Methods 300, 20-25.

Rodents, particularly rats and mice, are the most commonly used laboratory animals and are extensively used in neuroscience research, including as translational models for human disorders. It is common practice to carry out scientific procedures...

Straticò, P., Varasano, V., Suriano, R. et al. 2018. Analgesic effects of intravenous flunixin and intrafunicular lidocaine or their combination for castration of lambs. Veterinary Record Open 5(1), e000266.

Objective: To analyse the effectiveness of intrafunicular lidocaine and intravenous flunixin for reducing pain and signs of stress in lambs undergoing surgical castration. Design: Randomised controlled trial. Setting: One university teaching hospital in Italy. Participants...

Barker, T. H., George, R. P., Howarth, G. S. et al. 2017. Assessment of housing density, space allocation and social hierarchy of laboratory rats on behavioural measures of welfare. PLOS ONE 12(9), e0185135.

Minimum space allowances for laboratory rats are legislated based on weight and stocking rates, with the understanding that increased housing density encourages crowding stress. However, there is little evidence for these recommendations, especially when considering...

Hestehave, S., Munro, G., Christensen, R. et al. 2017. Is there a reasonable excuse for not providing post-operative analgesia when using animal models of peripheral neuropathic pain for research purposes? PLOS ONE 12(11), e0188113.

Introduction: The induction of neuropathic pain-like behaviors in rodents often requires surgical intervention. This engages acute nociceptive signaling events that contribute to pain and stress post-operatively that from a welfare perspective demands peri-operative analgesic treatment...

Rooke, J. A., Arnott, G., Dwyer, C. M. et al. 2017. Impact of maternal stress and nutrition on behavioural and physiological outcomes in young lambs. Animal Welfare 26(4), 403-415.

The pre-natal period is of critical importance in defining how individuals respond to their environment throughout life. Stress experienced by pregnant females has detrimental effects on offspring behaviour, health and productivity. The sheep (Ovis aries)...

Pasmans, F., Bogaerts, S., Braeckman, J. et al. 2017. Future of keeping pet reptiles and amphibians: Towards integrating animal welfare, human health and environmental sustainability. Veterinary Record 181(17), 450.

The keeping of exotic pets is currently under debate and governments of several countries are increasingly exploring the regulation, or even the banning, of exotic pet keeping. Major concerns are issues of public health and...