The HABRI Foundation is calling for research proposals to investigate the health outcomes of pet ownership and/or animal-assisted activity or therapy, both for the people and the animals involved. To learn more, visit https://habri.org/grants/funding-opportunities/ close

 
You are here: Home / Tags / ratios / All Categories

Tags: ratios

All Categories (1-15 of 15)

  1. Slow and steady wins the race? No signs of reduced welfare in smaller broiler breeder hens at four weeks of age

    Contributor(s):: Lindholm, C., Calais, A., Jonsson, J., Yngwe, N., Berndtson, E., Hult, E., Altimiras, J.

    Broiler breeder chickens are commonly reared under strict feed-restriction regimes to reduce obesity-induced health and fertility problems during adult life, and are assumed to experience a reduced welfare due to the resulting hunger. In these conditions, feed competition could influence the...

  2. Density-dependent diet selection and body condition of cattle and horses in heterogeneous landscapes

    Contributor(s):: Cornelissen, P., Vulink, J. T.

    For some decades, grazing by cattle and horses is used as a management tool to achieve different nature management goals. For managers there are still questions to be answered about the effects of herbivore densities on their performance, vegetation development and biodiversity. This study...

  3. Nutritional ecology of obesity: from humans to companion animals

    Contributor(s):: Raubenheimer, D., Machovsky-Capuska, G. E., Gosby, A. K., Simpson, S.

    We apply nutritional geometry, a framework for modelling the interactive effects of nutrients on animals, to help understand the role of modern environments in the obesity pandemic. Evidence suggests that humans regulate the intake of protein energy (PE) more strongly than non-protein energy...

  4. Behaviour in order to evaluate the palatability of pet food in domestic cats

    Contributor(s):: Becques, A., Larose, C., Baron, C., Niceron, C., Feron, C., Gouat, P.

    Palatability of pet food has been mainly assessed by intake ratios. In the present study we have searched for behavioural clues of food palatability in domestic cats Felis catus. Two diets differing in palatability (Very Palatable Kibbles and Low Palatable Kibbles) were evaluated by a panel of 17...

  5. Development of a novel paradigm for the measurement of olfactory discrimination in dogs ( Canis familiaris): a pilot study

    Contributor(s):: Salvin, H. E., McGrath, C., McGreevy, P. D., Valenzuela, M. J.

    Olfactory dysfunction in older human beings has been shown to be associated with an increased risk of cognitive decline, yet age-related changes in olfactory behavior have received little attention in the dog model of human aging. We developed an odor habituation and fine odor discrimination...

  6. Cross sectional study comparing behavioural, cognitive and physiological indicators of welfare between short and long term kennelled domestic dogs

    Contributor(s):: Titulaer, M., Blackwell, E. J., Mendl, M., Casey, R. A.

  7. The importance of diet choice on stress-related responses by lambs

    Contributor(s):: Catanese, F., Obelar, M., Villalba, J. J., Distel, R. A.

  8. Volunteer experience influences the conclusions of behavioural experiments

    Contributor(s):: Duncan, L. M., Pillay, N.

  9. Mixed housing of different genetic lines of laying hens negatively affects feather pecking and fear related behaviour

    Contributor(s):: Uitdehaag, K. A., Rodenburg, T. B., Bolhuis, J. E., Decuypere, E., Komen, H.

    Adult laying hens from Rhode Island Red (RIR) origin both express lower levels of feather pecking and lower fear responses towards a novel object than laying hens from White Leghorn (WL) origin. The present study investigated whether mixed housing of RIR and WL laying hens would affect their...

  10. Motivation for social contact in horses measured by operant conditioning

    Contributor(s):: Sondergaard, E., Jensen, M. B., Nicol, C. J.

    Although horses are social animals they are often housed individually with limited social contact to other horses and this may compromise their welfare. The present study included eight young female horses and investigated the strength of motivation for access to full social contact, head contact...

  11. Preference and demand for exercise in stabled horses

    Contributor(s):: Lee, J., Floyd, T., Erb, H., Houpt, K.

    Operant conditioning and two choice preference tests were used to assess the motivation of horses to be released from straight and from box stalls. The motivations for food, a companion, and release into a paddock were compared when the horses had to work for each commodity at increasing fixed...

  12. Effects of cage-cleaning frequency on laboratory rat reproduction, cannibalism, and welfare

    Contributor(s):: Burn, C. C., Mason, G. J.

    Regular cage-cleaning is important for health, but for breeding rats it disrupts the nest and removes olfactory signals important for parental care. To investigate how different cage-cleaning frequencies affect breeding rats' health and welfare, we monitored reproductive output, pup mortality,...

  13. Indices for estimation of dairy free-stall occupancy

    Contributor(s):: Carreira, X. C., Fernandez, M. E., Marino, R. A.

    The objective of this study was to obtain variables that enabled estimation of variation in stall occupancy times based on the cow-to-stall ratio. First, stall use by Holstein-Friesian cows was analyzed on 16 farms in Galicia, Northwest Spain, by continuously recording cow behavior for 24 h....

  14. Towards a more objective assessment of equine personality using behavioural and physiological observations from performance test training

    Contributor(s):: Borstel, U. K. von, Pasing, S., Gauly, M.

    Current definitions of horse personality traits are rather vague, lacking clear, universally accepted guidelines for evaluation in performance tests. Therefore, the aim of the present study was to screen behavioural and physiological measurements taken during riding for potential links with...

  15. Rapid shaping of behaviour associated with high urinary cortisol in domestic dogs

    Contributor(s):: Blackwell, E. J., Bodnariu, A., Tyson, J., Bradshaw, J. W. S., Casey, R. A.

    The occurrence of stress has widely been associated with impairments in learning abilities in animals, although the influence of stress appears to differ with the complexity of tasks. Previous research has suggested that some domestic dogs exhibit both physiological (elevated cortisol) and...