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. 
Horowitz, A., Hecht, J. 2016. Examining dog–human play: The characteristics, affect, and vocalizations of a unique interspecific interaction. Animal Cognition 19(4), 779–788.

Despite the growing interest in research on the interaction between humans and dogs, only a very few research projects focus on the routines between dogs and their owners. In this study, we investigated one such...

Kiddie, J., Collins, L. 2015. Identifying environmental and management factors that may be associated with the quality of life of kenneled dogs (Canis familiaris). Applied Animal Behaviour Science 167, 43-55.

This paper describes the use of a validated quality of life assessment tool (described elsewhere) to identify environmental and management factors that may affect quality of life in dogs kennelled in rehoming centres. Dogs were...

Cloutier, S., Wahl, K. L., Panksepp, J. et al. 2015. Playful handling of laboratory rats is more beneficial when applied before than after routine injections. Applied Animal Behaviour Science 164, 81-90.

The ability of positive affective states to counteract negative states engendered by routine medical procedures remains poorly studied. In laboratory rats, positive affect typically associated with rough-and-tumble play can be induced through human “hand play”...

Wergrd, E., Temrin, H., Forkman, B. et al. 2015. Training pair-housed Rhesus macaques (Macaca mulatta) using a combination of negative and positive reinforcement. Behavioural Processes 113, 51-59.

When training animals, time is sometimes a limiting factor hampering the use of positive reinforcement training (PRT) exclusively. The aim of this study was to evaluate the effects of a combination of negative and positive...

Bayne, K. A., Beaver, B. V., Mench, J. A. et al. 2015. Laboratory animal behavior. In: Laboratory Animal Medicine, 3rd edition. Fox, J. G., Anderson, L., Otto, G., et al. (eds). Elsevier, Inc., Amsterdam, NL. pp. 1617-1651.

The study of laboratory animal behavior has increased steadily over the last decade, with expanding emphasis on a variety of commonly used species. In the United States, this trend was initially focused on species for...

Zenithson, Y. G., Pierce, B. J., Otto, C. M. et al. 2014. The effect of dog-human interaction on cortisol and behavior in registered animal-assisted activity dogs. Applied Animal Behaviour Science. 159, 69-81.

The effect of animal-assisted activities (AAA) on the animal participants has been minimally investigated, and the welfare of these animals has been questioned. To enhance our understanding of these animals’ welfare, we measured cortisol collected...

Strittmatter, R. R., Ferraro, A., Tiano, D. 2014. Behavioral management approach to facilitate use of pen-housed nonhuman primates for toxicology studies. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 539 (Abstract #PS53).

Housing laboratory primates in large pens can improve welfare by providing ample opportunity to express normal social and locomotor behaviors. This type of housing, however, can present great challenges in terms of manipulating animals for...

McMillan, J. L., Perlman, J. E., Galvan, A. et al. 2014. Refining the pole-and-collar method of restraint: Emphasizing the use of positive training techniques with rhesus macaques (Macaca mulatta). JJAALAS 53(1), 61-68.

The pole-and-collar method is one of several techniques that enable the safe transfer of a nonhuman primate from its home environment into a restraint chair without the need for sedation. It has been used within...

Nicholson, G., Sheldon, E. L., Hamilton, J. et al. 2014. Sand pools as a novel enrichment for rabbits. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 571. (Abstract #P83).

For anyone who has housed rabbits in an artificial plastic environment, what to provide as a nonfood enrichment can be an issue. Nonfood enrichment, or environmental enrichment, can be any toy, engaging sights or sounds...

Andrews, C. 2014. Using positive reinforcement training to refine daily medical treatment of a cynomolgus macaque. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 565-566. (Abstract #P63).

Medical care of nonhuman primates in a laboratory setting can be challenging due to the safety concerns inherent in handling conscious animals. A mature, adult male cynomolgus macaque presented with a chronic foot condition that...

Hori, M., Yamada, K., Ohnishi, J. et al. 2014. Tickling during adolescence alters fear-related and cognitive behaviors in rats after prolonged isolation. Physiology & Behavior 131, 62-67.

Social interactions during adolescence are important especially for neuronal development and behavior. We recently showed that positive emotions induced by repeated tickling could modulate fear-related behaviors and sympatho-adrenal stress responses. In the present study, we...

McGowan, R. T. S., Rehn, T., Norling, Y. et al. 2014. Positive affect and learning: Exploring the “Eureka Effect” in dogs. Animal Cognition 17(3), 577–587.

Animals may experience positive affective states in response to their own achievements. We investigated emotional responses to problem-solving in dogs, separating these from reactions to rewards per se using a yoked control design. We also...

Piccione, G., Arfuso, F., Giannetto, C. et al. 2013. Effect of housing conditions and owner's schedule on daily total locomotor activity in dogs (Canis familiaris). Biological Rhythm Research 44, 778-786.

The purpose of this study was to evaluate the influence of housing conditions on daily rhythm of total locomotor activity in dogs. Seven clinically healthy dogs (Canis familiaris) were used and divided into two groups...

Shiverdecker, M. D., Schiml, P. A., Hennessy, M. B. 2013. Human interaction moderates plasma cortisol and behavioral responses of dogs to shelter housing. Physiology & Behavior 109, 75-79.

Housing in an animal shelter is a stressful experience for dogs. This study examined the effects of different forms of human interaction on concentrations of circulating cortisol and stress-related behaviors of dogs within 40 h...

Reinhardt, V. (ed.) 2013. Compassion Makes a Difference - Discussions by the Laboratory Animal Refinement & Enrichment Forum [LAREF], Volume III. Animal Welfare Institute, Washington, DC.

This is the third volume of discussions that took place on the Laboratory Animal Refinement & Enrichment Forum (LAREF). This forum is dedicated to the exchange of personal experiences of refining the conditions under which...

Pierre, V., Wunsch, R., Perkins, C. et al. 2013. Using positive reinforcement training (PRT) strategies to adapt adult male rhesus macaques (Macaca mulatta) to daily handling demands. American Journal of Primatology 75(S1), 67. (36th Meeting of the American Society of Primatologists Scientific Program, Abstract #117)

Research has shown animals are sensitive to environment changes and novel caretakers. The behavioral response to environmental change is often expressed as a decrease in willingness to comply or perform learned tasks. We assessed the...

Melfi, V. 2013. Is training zoo animals enriching? Applied Animal Behaviour Science 147, 299-305.

Husbandry training of zoo animals (training) has been associated with many benefits, and indisputably is a valuable tool; training facilitates movement of animals within their environment, and participation in husbandry and medical procedures. Training has...

Hannibal, D., Minier, D., Capitanio, J. et al. 2013. Effect of temperament on the behavioral conditioning of individual rhesus monkeys (Macaca mulatta). American Journal of Primatology 75(S1), 66. (36th Meeting of the American Society of Primatologists Scientific Program, Abstract #113)

Animal training programs are used at many animal facilities to refine human-animal interactions. While there is a strong focus on positive reinforcement training (PRT) over negative reinforcement training (NRT) or punishment, animals vary in responsiveness...

Giordano. K.A. 2013. Training nonhuman primates to check their watering system as a means to increase psychologic wellbeing and increase efficiency for husbandry staff. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 615 (Abstract #PS41).

Through the use of operant conditioning methods, that is, clicker training, it is possible to train nonhuman primates to check their automatic watering system. Primate species not indicated. We will detail a training study.

Ferraro, A., Brunelli, R., Nelsen, S. L. et al. 2013. Making use of a laser pointer as training and enrichment tool: A discussion by the Laboratory Animal Refinement & Enrichment Forum. Animal Technology and Welfare 12, 195-196.

We have successfully trained with a laser pointer at least one cyno in each pair/group to target to their lixits. Currently this stands at about 35 cages housing a total of 63 animals. We no...

Cummins, K. 2013. Syringe training family groups of marmosets at Dstl. Animal Technology and Welfare 11, 137-139.
Savastano, G. M. 2013. Operant conditioning with laboratory beagles. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 619 (Abstract #PS57).

There is increased regulatory emphasis on positive reinforcement training for husbandry, research procedures, and restraint devices. We practice acclimation, association, and positive reinforcement training with our beagle colony with goals to reduce stress for dogs...

Cloutier, S., Baker, C., Wahl, K. et al. 2013. Playful handling as social enrichment for individually- and group-housed laboratory rats. Applied Animal Behaviour Science 143(2-4), 85-95.

Social housing is recommended for laboratory rats because they are highly social mammals but research constraints or medical issues often demand individual housing and, when social housing is practiced, it typically involves housing with only...

Coleman, K., Houser, L. A., Maier, A. 2013. Improving the efficiency of positive reinforcement training for non-human primates. American Journal of Primatology 75(S1), 66. (36th Meeting of the American Society of Primatologists Scientific Program, Abstract #115)

There are many benefits of positive reinforcement training (PRT). PRT reduces stress for subjects and as such is a significant refinement to animal care practices. However, training can be time intensive, and not all animals...

Bloomsmith, M., Franklin, A., Neu, K. et al. 2013. Training time required to collect a variety of biological samples using primarily positive reinforcement training methods. American Journal of Primatology 75(S1), 65. (36th Meeting of the American Society of Primatologists Scientific Program, Abstract #112)

Positive reinforcement training (PRT) methods can be applied to gain the voluntary cooperation of laboratory primates with the collection of biological samples. Information will be provided on training techniques used and the amount of training...