How spontaneous is spontaneous quantity discrimination in companion dogs?
Contributor(s):: Simona, Normando, Maria, Loconsole, Lucia, Regolin, Giovanna, Marliani, Michela, Mattioli, Elena, Pietschmann, Attilio, Accorsi Pier
Refinements to captive chimpanzee (Pan troglodytes) care: a self-medication paradigm
Contributor(s):: Webb, S. J. N., Hau, J., Schapiro, S. J.
Behavioural fever, fish welfare and what farmers and fishers know
Contributor(s):: Huntingford, Felicity, Rey, Sonia, Quaggiotto, Maria-Martina
In this article we first describe briefly how, like other ectotherms, wild fish promote effective functioning (for example, digestion and reproductive maturation) by moving through the temperature gradients that they experience in their natural habitats (showing behavioural thermoregulation). We...
Dutch Consumers’ Willingness to Pay for Broiler Welfare
Contributor(s):: Mulder, Machiel, Zomer, Sigourney
This article analyzes Dutch consumers’ willingness to pay (WTP) for the welfare of broiler chickens and the consequences for nonhuman animal welfare policies. Using data from a discrete-choice experiment and a random parameter logit model, this study showed that consumers particularly value...
Methods for cross point analysis of double-demand functions in assessing animal preferences
Contributor(s):: Engel, Bas, Webb, Laura E., Jensen, Margit Bak, van Reenen, Cornelis G., Bokkers, Eddie A. M.
Cross point analysis of double demand functions provides a compelling way to quantify the strength of animal preferences for two simultaneously presented resources. During daily sessions, animals have to work to gain access to (a portion of) either resource, e.g. by pressing one of two panels a...
Choice of perch characteristics by laying hens in cages with different group size and perching behaviours
Contributor(s):: Chen, Dong-hua, Bao, Jun, Meng, Fan-yu, Wei, Chun-bo
Provision of perches in cages could improve behaviour and physical conditions of laying hens. This study was conducted to investigate the choice of perch characteristics (shape, width, material and height) by caged hens under different group size, and to understand the choice by the perching...
The choice of litter material to promote pecking, scratching and dustbathing behaviours in laying hens housed in furnished cages
Contributor(s):: Guinebretière, Maryse, Beyer, Helen, Arnould, Cécile, Michel, Virginie
Since 2012 in the EU, cages for the housing of laying hens must provide nests, perches and a pecking and scratching area to promote natural behaviours and enhance animal welfare. Previous studies highlighted the difficulty of finding adequate materials for pecking and scratching areas in such...
Quantifying hungry broiler breeder dietary preferences using a closed economy T-maze task
Contributor(s):: Buckley, Louise A., Sandilands, Victoria, Tolkamp, Bert J., D’Eath, Richard B.
This study aimed to identify hungry broiler breeders (n=12) preferences for quantitative (control) or qualitative dietary restriction (QDR) in a closed economy environment. The QDR option was either 3g calcium propionate/kg total feed (n=6) or 300g oat hulls/kg total feed (n=6). Quantitatively...
The psychology of control: Effects of control over supplementary light on welfare of marmosets
Contributor(s):: Buchanan-Smith, Hannah M., Badihi, Inbal
It is often argued that increasing the amount of control that animals have over various aspects of their environment has a positive effect on their welfare, despite limited empirical evidence. We gave 12 pairs of common marmosets (Master pairs) control over supplementary light in their cages...
Mild environmental aversion is detected by a discrete-choice preference testing method but not by a free-access method
Contributor(s):: Browne, William J., Caplen, Gina, Statham, Poppy, Nicol, Christine J.
Preference tests are a widely used method in animal welfare science but the influence of specific methodologies has not been widely investigated, and methods are often selected arbitrarily. In these experiments we assessed the environmental preferences of 72 individual laying hens, where...
Effect of water depth on pool choice and bathing behaviour in commercial Pekin ducks
Contributor(s):: Liste, Guiomar, Kirkden, Richard D., Broom, Donald Maurice
Pekin ducks (Anas platyrhynchos domestica) are raised for meat, often in indoor intensive systems. Research into the welfare of intensively reared ducks makes clear the importance of access to bathing water. Most researchers agree that bathing behaviours such as preening are important; however,...
Design and methodology of choice feeding experiments with ruminant livestock
Contributor(s):: Meier, Janina Sarah, Kreuzer, Michael, Marquardt, Svenja
The purpose of this review is to describe design and methodology of choice feeding experiments applied in ruminant livestock by taking into account their potential for different purposes and animal-, feed-, and set-up specific aspects. The first choice feeding experiments took place around 1900...
Contrafreeloading in maned wolves: Implications for their management and welfare
Contributor(s):: Vasconcellos, Angélica da Silva, Harumi Adania, Cristina, Ades, César
Contrafreeloading occurs when animals spend time and effort to obtain food in the presence of freely available food. There are several interpretations for such an apparent contradiction to optimal foraging models, with an emphasis either on the need to gather and update information about the...
The influence of odour, taste and nutrients on feeding behaviour and food preferences in horses
Contributor(s):: van den Berg, M., Giagos, V., Lee, C., Brown, W. Y., Cawdell-Smith, A. J., Hinch, G. N.
While it has been established that nutrients and flavours (odour, taste) play an important role in diet selection by horses, previous studies have not always clarified what type of flavouring (e.g. non-nutritive or nutritive) was used. Therefore, the objective of this study was to determine the...
Behaviour directed towards inaccessible food predicts consumption—A novel way of assessing food preference
Contributor(s):: Thompson, Hannah, Riemer, Stefanie, Ellis, Sarah L. H., Burman, Oliver H. P.
When determining an animal’s food preference based on comparative consumption, a major problem is the potential for individuals to over-eat, rendering subjects unavailable for subsequent tests as well as exposing them to potentially adverse health implications. Here, we explored alternative,...
Captive-reared juvenile box turtles innately prefer naturalistic habitat: Implications for translocation
Contributor(s):: Tetzlaff, Sasha J., Sperry, Jinelle H., DeGregorio, Brett A.
Habitat choice has broad repercussions for animals, but mechanisms influencing such choices are generally not understood. When conducting conservation translocations using captive-reared animals, elucidating mechanisms influencing habitat preference pre-release could inform rearing methods and...
You gotta crack a few eggs
Contributor(s):: Faa-Thompson, Tracie, Trotter, Kay Sudekum
Most domestic dogs (Canis lupus familiaris) prefer food to petting: Population, context, and schedule effects in concurrent choice
Contributor(s):: Feuerbacher, Erica N., Wynne, Clive D. L.
"Loyals" and "optimizers": shedding light on the decision for or against organic agriculture among Swiss farmers
Contributor(s):: Mann, S., Gairing, M.
A study of how experts and non-experts make decisions on releasing genetically modified plants
Contributor(s):: Brana, G. M. R., Miranda-Vilela, A. L., Grisolia, C. K.