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. 
Ermers, C., McGilchrist, N., Fenner, K. et al. 2023. The fibre requirements of horses and the consequences and causes of failure to meet them. Animals 13(8), 1414.

Failure to meet the minimum forage requirement of 1.5% of the horse’s bodyweight and the opportunity for foraging for a minimum of 8 h a day (not going without this opportunity longer than four to...

Mauthe von Degerfeld, M., Serpieri, M., Bonaffini, G. et al. 2023. Intranasal atomization of ketamine, medetomidine and butorphanol in pet rabbits using a mucosal atomization device. Animals 13(13), 2076.

A non-invasive method of drug delivery, intranasal atomization, has shown positive results in human medicine and in some animal species. The objective of this study was to evaluate the effects of intranasal atomization, compared to...

Torcivia, C., McDonnell, S. 2022. Efficacy of lidocaine topical solution in reducing discomfort reaction of horses to intramuscular vaccination. Animals 12(13), 1659.

Vaccinations via intramuscular injection are a key component of preventative health care in horses. Development of problematic behavioral aversion to injections is quite common. Our clinical impression has been that topical anesthetic applied to injection...

Larssen, R., Roth, L. S. V. 2022. Regular positive reinforcement training increases contact-seeking behaviour in horses. Applied Animal Behaviour Science 252, 105651.

Horses are commonly trained using negative reinforcement. However, a growing body of scientific evidence supports positive reinforcement as an efficient training method for horses. In this study we investigated the effects of adding a small...

Seganfreddo, S., Fornasiero, D., De Santis, M. et al. 2022. Investigation of donkeys learning capabilities through an operant conditioning. Applied Animal Behaviour Science 255, 105743.

Despite donkeys being involved in various activities with humans, their cognitive and learning abilities are still little known. A deeper understanding of their perceptive, cognitive and learning processes is, thus, necessary to preserve their well-being...

Greening, L., McBride, S. 2022. A review of equine sleep: Implications for equine welfare. Frontiers in Veterinary Science 9, 916737.

Sleep is a significant biological requirement for all living mammals due to its restorative properties and its cognitive role in memory consolidation. Sleep is ubiquitous amongst all mammals but sleep profiles differ between species dependent...

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...

Sørensen, D., Cloutier, S., Gaskill, B. (Eds.). 2021. Animal-centric Care and Management - Enhancing Refinement in Biomedical Research. CRC Press, Boca Raton, FL.

The concept of the 3Rs (Refinement, Reduction and Replacement) has been used as a framework for improving the welfare of laboratory animals for the last half century. By establishing an animal-centric view on housing and...

Krueger, K., Esch, L., Farmer, K. et al. 2021. Basic needs in horses?—A literature review. Animals 11(6), 1798.

Every animal species has particular environmental requirements that are essential for its welfare, and when these so-called “basic needs” are not fulfilled, the animals suffer. The basic needs of horses have been claimed to be...

De Santis, M., Seganfreddo, S., Galardi, M. et al. 2021. Donkey behaviour and cognition: A literature review. Applied Animal Behaviour Science 244, 105485.

Despite their diffusion worldwide, many aspects of donkeys’ behaviour and cognitive abilities are still poorly understood and overshadowed by a corpus of commonplaces. The possibility of better knowing this species is of key relevance for...

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...

Bill, J., Rauterberg, S. L., Herbrandt, S. et al. 2020. Agonistic behavior and social hierarchy in female domestic rabbits kept in semi-groups. Journal of Veterinary Behavior 38, 21-31.

In semi-natural mixed-sex groups, rabbits (Oryctolagus cuniculus) organize their social life by forming a hierarchy, which is characterized by linearity and stability. Compared to the natural environment, many factors are different in contemporary breeding systems...

Guarneros, M., Sánchez-García, O., Martínez-Gómez, M. et al. 2020. The underexplored role of chemical communication in the domestic horse, Equus caballus. Journal of Veterinary Behavior 38, 89-95.

This work provides an overview of the role of chemical communication in horse behavior and addresses the potential usefulness of this knowledge for management practices and animal welfare. First, we present an outline of the...

Lundberg, P., Hartmann, E., Roth, L. S. V. 2020. Does training style affect the human-horse relationship? Asking the horse in a separation–reunion experiment with the owner and a stranger. Applied Animal Behaviour Science 233, 105144.

Humans have shared a long history with horses and today we mainly consider horses as companions for sports and leisure activities. Previously, the human perspective of the human-horse relationship has been investigated but there has...

Rogers, C. W., Dittmer, K. E. 2019. Does juvenile play programme the equine musculoskeletal system? Animals 9(9), 646.

In mammals, play behaviour appears innate and, because of this, may provide insight into the frequency and intensity of load that is required to stimulate positive musculoskeletal development. The objective of this review was to...

Huisman, I., Van Iwaarden, S., Hughes, E. et al. 2019. Clicker training in horses; the importance of the time between click and reward. Journal of Veterinary Behavior 29, 148. (13th International Society of Equitation Science (ISES) Conference Abstract)

Timing of reward is very important when training horses. Incorrect timing can lead to confusion and deleterious behaviors and learning will be impaired. Clicker training can be used as an important tool in training. However...

Hartmann, E., Christensen, J. W., Mcgreevy, P. D. 2019. Does leadership relate to social order in groups of horses and can it be transferred to human–horse interactions? Journal of Veterinary Behavior 29, 153. (13th International Society of Equitation Science (ISES) Conference Abstract)

A prevalent, traditional approach to horse-training is based on the belief that human dominance and leadership over horses is required to gain their respect and compliance. However, this denies the horses’ complex social organisation and...

Ladewig, J. 2019. Body language: its importance for communication with horses. Journal of Veterinary Behavior 29, 147-148. (13th International Society of Equitation Science (ISES) Conference Abstract)

Body language is important for communication between individuals. Body language is based on the fact that the thought, alone of performing a known action will activate the motor neurons used for the action, resulting in...

Špinka, M. 2019. Animal agency, animal awareness and animal welfare. Animal Welfare 28(1), 11–20.

In nature, animals need to actively engage with the environment in order to prosper in survival and reproduction. Hence, agency is a central adaptive characteristic of animal life. In this paper, I propose that from...

Olczak, K., Christensen, J. W., Klocek, C. 2018. Food motivation in horses appears stable across different test situations. Applied Animal Behaviour Science 204, 60-65.

Food motivation may influence an animal’s performance in food-rewarded learning tasks. Nevertheless, food is often used as a positive reinforcer in learning tasks to investigate cognitive abilities of farm animals, and to test effects of...

Ekesbo, I., Gunnarsson, S. 2018. Farm Animal Behaviour: Characteristics for Assessment and Welfare (2nd ed). CABI, Wallingford, UK.

Completely updated and revised, and with a new author team, this second edition of Farm Animal Behaviour continues to provide essential information on normal and stereotypic behaviors in a wide variety of farm animals to...

McBride, S. D., Parker, M. O., Roberts, K. et al. 2017. Applied neurophysiology of the horse; implications for training, husbandry and welfare. Applied Animal Behaviour Science 190, 90-101.

Understanding the neural circuits underlying equine behaviour has the potential to help optimise strategies of husbandry and training. This review discusses two areas of neurophysiological research in a range of species and relates this information...

Martinez de Andino, E. V., McDonnell, S. M. 2017. Evaluation of operant learning in young foals using target training. Applied Animal Behaviour Science 193, 67-72.

The primary purpose of this study was to characterize operant learning performance of young foals. For each of 26 foals, aged 6–20 weeks, learning performance was quantitatively evaluated in a single brief training trial using...

Mejdell, C. M., Buvik, T., Jørgensen, G. H. M. et al. 2016. Horses can learn to use symbols to communicate their preferences. Applied Animal Behaviour Science 184, 66-73.

This paper describes a method in which horses learn to communicate by touching different neutral visual symbols, in order to tell the handler whether they want to have a blanket on or not. Horses were...

Blois-Heulin, C., Rochais, C., Camus, S. et al. 2015. Animal welfare: Could adult play be a false friend? Animal Behavior and Cognition 2(2), 156–185.

There is no consensus regarding the functions of play. As play behavior is a characteristic of young stages of development, it has been suggested that the higher prevalence of adult play observed in domestic animals...