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  1. Gregarious nesting—An anti-predator response in laying hens

    Contributor(s):: Riber, Anja Brinch

    Gregarious nesting can be defined as a behaviour that occurs when a laying hen (Gallus gallus domesticus) given the choice between an occupied and an unoccupied nest site chooses the occupied nest site. It occurs frequently in flocks of laying hens kept under commercial conditions, contrasting...

  2. Effect of fasting on self-feeding activity in juvenile sea bass (Dicentrarchus labrax)

    Contributor(s):: Benhaïm, David, Bégout, Marie-Laure, Péan, Samuel, Brisset, Blandine, Leguay, Didier, Chatain, Béatrice

    In various experiments under self-feeding conditions, sea bass groups could be divided into three categories regarding feeder actuation: high, low and zero-triggering fish. In all cases few high-triggering fish were responsible for a high percentage of the feed delivery. A question was raised...

  3. Effects of captivity on house mice behaviour in a novel environment: Implications for conservation practices

    Contributor(s):: Courtney Jones, Stephanie K., Munn, Adam J., Byrne, Phillip G.

    Captive breeding programmes offer a method for preventing the extinction of threatened species, but often have difficulty establishing self-sustaining populations and generating individuals for release. This difficulty can arise because the behaviour of captive-reared animals differs from wild...

  4. Coping strategies in captive capuchin monkeys (Sapajus spp.)

    Contributor(s):: Ferreira, Renata G., Mendl, Michael, Wagner, Paulo Guilherme Carniel, Araujo, Talita, Nunes, Daniela, Mafra, Antonieta Looman

    Studies on diverse species indicate the existence of individual differences in stress coping strategies labelled as ‘proactive’ and ‘reactive’. Identifying taxonomic distribution of such coping strategies is fundamental to evolutionary models and to management of captive animals. Capuchin monkeys...

  5. Assessment of circadian rhythm of activity combined with random regression model as a novel approach to monitoring sheep in an extensive system

    Contributor(s):: Nunes Marsiglio Sarout, Bruna, Waterhouse, Anthony, Duthie, Carol-Anne, Candal Poli, Cesar Henrique Espirito, Haskell, Marie J., Berger, Anne, Umstatter, Christina

    Sensor-based technologies are becoming increasingly available and can be used to automatically gather long-term data about animal behaviour. With this information, it is possible to assess the circadian rhythm of activity and monitor its response to internal and external factors. Identifying...

  6. Rearing captive eastern hellbenders (Cryptobranchus a. alleganiensis) with moving water improves swim performance

    Contributor(s):: Kenison, Erin K., Williams, Rod N.

    Translocations often use captive-reared animals to help bolster or re-establish wild populations. However, captive environments are highly dissimilar from wild conditions and may deprive animals of experiences that promote normal development. Captive-rearing and translocation efforts are underway...

  7. Plasticity and consistency of lying and ruminating behaviours of heifers exposed to different cubicle availability: A glance at individuality

    Contributor(s):: Cortés Fernández de Arcipreste, Norhan, Mancera, Karen F., Miguel-Pacheco, Giuliana G., Galindo, Francisco

    Behavioural responses are a balance between plasticity (changes in behavioural patterns in relation to the environment) and consistency (similar behavioural responses in different situations). In addition, behavioural consistency indicates the presence of individuality, that is, a degree of...

  8. Coping strategies in captive capuchin monkeys ( Sapajus spp.)

    Contributor(s):: Ferreira, R. G., Mendl, M., Wagner, P. G. C., Araujo, T., Nunes, D., Mafra, A. L.

    Studies on diverse species indicate the existence of individual differences in stress coping strategies labelled as 'proactive' and 'reactive'. Identifying taxonomic distribution of such coping strategies is fundamental to evolutionary models and to management of captive animals. Capuchin monkeys...

  9. Feeding behavior and the effect of photoperiod on the performance and hematological parameters of the pacama catfish ( Lophiosilurus alexandri)

    Contributor(s):: Kitagawa, A. T., Costa, L. S., Paulino, R. R., Luz, R. K., Rosa, P. V., Guerra-Santos, B., Fortes-Silva, R.

    The aim of this study was to evaluate the rhythms of feeding and locomotor activity, the ability to synchronize to a fixed feeding time, and the influence of photoperiod on the growth parameters, feed intake and hematological parameters of a recently introduced fish in freshwater Brazilian...

  10. Piglets call for maternal attention: vocal behaviour in Sus scrofa domesticus is modulated by mother's proximity

    Contributor(s):: Iacobucci, P., Colonnello, V., D'Antuono, L., Cloutier, S., Newberry, R. C.

    Plasticity in the production of "separation distress" vocalizations, and seeking of caregivers beyond mere satisfaction of immediate physiological needs, are manifestations of attachment that we investigated in the domestic pig ( Sus scrofa domesticus). Female piglets from eight litters were...

  11. Condensed tannins reduce browsing and increase grazing time of free-ranging goats in semi-arid savannas

    Contributor(s):: Mkhize, N. R., Heitkonig, I. M. A., Scogings, P. F., Dziba, L. E., Prins, H. H. T., Boer, W. F. de

    Tannin concentrations fluctuate spatially and temporally within and among plant species, with consequences for forage quality of herbivores. The extent to which these fluctuations influence foraging activities of goats is not fully understood. While accounting for the effects of the time of the...

  12. Consistency in European seabass coping styles: a life-history approach

    Contributor(s):: Ferrari, S., Millot, S., Leguay, D., Chatain, B., Begout, M. L.

    Recent years have seen a growth of interest in the consistent differences in individual behaviour over time and contexts constituting the so-called "individual coping styles". An understanding of this inter-individual variation is essential to improve our knowledge of the adaptive value of...

  13. Following human-given cues or not? Horses ( Equus caballus) get smarter and change strategy in a delayed three choice task

    Contributor(s):: Lovrovich, P., Sighieri, C., Baragli, P.

    To date, horses have seemed capable of using human local enhancement cues only when the experimenter remains close to the reward, since they fail to understand the communicative meaning of the human as momentary local enhancement cue (when the human is not present at the moment of the animal's...