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  1. The behaviour of broiler chickens and its modification by lameness

    Contributor(s):: Weeks, C. A., Danbury, T. D., Davies, H. C., Hunt, P., Kestin, S. C.

    The behaviour of 6 replicates of approx. 100 broilers (Ross 308) obtained from commercial farms, fed ad-libitum and housed on a 23-h light:1-h dark schedule at 20 lx was observed using scan sampling. Comparisons were made between sound birds and those of varying degrees of lameness between 39 and...

  2. The effect of restricting pen space and feeder availability on the behaviour and growth performance of entire male growing pigs in a deep-litter, large group housing system

    Contributor(s):: Morrison, R. S., Hemsworth, P. H., Cronin, G. M., Campbell, R. G.

    Recent research has shown that pigs housed in large groups on deep-litter have longer feeding events with less disruption from other pigs compared to pigs maintained in conventional housing systems. It has been speculated that this change in feeding behaviour is associated with increased fat...

  3. The effect of sampling strategy on the estimated prevalence of welfare outcome measures on finishing pig farms

    Contributor(s):: Mullan, S., Browne, W. J., Edwards, S. A., Butterworth, A., Whay, H. R., Main, D. C. J.

    The effect of sampling strategy on the estimates of prevalence of some welfare outcome measures was investigated as part of a larger project examining the feasibility and benefits of incorporating some on-farm welfare outcome assessments into UK Pig Farm Assurance Schemes. All finishing pigs (>40...

  4. The effects of acute simultaneous exposure to ammonia on the detection of buried odourized food by pigs

    Contributor(s):: Jones, J. B., Carmichael, N. L., Wathes, C. M., White, R. P., Jones, R. B.

    The relative consumption of a range of 15 odourized visible foods by 8 Duroc x Landrace pigs was examined over 15 days in Experiment 1. The most and least preferred food types were identified for later use in olfactory perception tasks in Experiments 2 and 3. Five of these odourized foods are...

  5. The effects of weaning at 7, 14 and 28 days on piglet behaviour

    Contributor(s):: Worobec, E. K., Duncan, I. J. H., Widowski, T. M.

    The effects of very early weaning on piglet behaviour were investigated. In order to determine the effects of weaning age on piglet behaviour, litters of piglets were randomly assigned to be weaned at 7, 14 and 28 days of age. In each of 3 trials, piglets from 3 litters were mixed into 2 pens of...

  6. The influence of sequential feeding on behaviour, feed intake and feather condition in laying hens

    Contributor(s):: Jordan, D., Faruk, M. U., Lescoat, P., Ali, M. N., Stuhec, I., Bessei, W., Leterrier, C.

    Feeding of whole-wheat grains and a protein-mineral concentrate in sequence had been shown to modify behaviour in broilers and performance in laying hens. The objective of this study was to test whether sequential feeding with wheat would induce changes in laying hen's behaviour, feed intake,...

  7. The response of beef cattle to noise during handling

    Contributor(s):: Waynert, D. F., Stookey, J. M., Schwartzkopf-Genswein, K. S., Watts, J. M., Waltz, C. S.

    59 yearling beef heifers (362+or-26 kg) were used in a study to evaluate their behavioural and physiological response to noises during a 1 min exposure. In Trial 1, 29 heifers that were naive to the treatments were assigned to either prerecorded handling noise (Noise, n=14) composed of humans...

  8. The risk factors affecting the development of gentle and severe feather pecking in loose housed laying hens

    Contributor(s):: Lambton, S. L., Knowles, T. G., Yorke, C., Nicol, C. J.

    Injurious pecking remains one of the biggest problems challenging free range egg producers, with both economic implications for the farmer and welfare implications for the birds. The most widespread form of injurious pecking is feather pecking, the most damaging form of which is severe feather...

  9. The role of novelty in environmental enrichment for the weaned pig

    Contributor(s):: Trickett, S. L., Guy, J. H., Edwards, S. A.

    Habituation to environmental enrichment objects can occur rapidly. Novelty of an object is an important property involved in initiating and maintaining exploration, and this can be achieved by renewing objects. The aims of this study were to assess whether alternation of two contrasting objects...

  10. The spontaneous qualitative assessment of behavioural expressions in pigs: first explorations of a novel methodology for integrative animal welfare measurement

    Contributor(s):: Wemelsfelder, F., Hunter, E. A., Mendl, M. T., Lawrence, A. B.

    This study investigated the extent to which 18 naive observers showed agreement when given the opportunity to qualitatively describe, independently and in their own words, the behavioural expressions of 20 individual growing pigs. Pigs were brought singly into a test pen and given the opportunity...

  11. Use of horizontal and angled perches by broiler chickens

    Contributor(s):: LeVan, N. F., Estevez, I., Stricklin, W. R.

    768 male broilers were assigned to 16 pens in a 4 treatment x 4 replication randomized complete block design. Each of the 4 pens within each block contained one of the following treatments: 0 degrees treatment (three 0 degrees perches); 20 degrees treatment (three 20 degrees perches); mixed angle...

  12. Validation of an automatic system to detect position changes in puerperal sows

    Contributor(s):: Mainau, E., Dalmau, A., Ruiz-de-la-Torre, J. L., Manteca, X.

    Piglet crushing by the sow is one of the main causes of piglet mortality during the first 48 h after birth. The frequency of position changes may be partially related to the pain caused by farrowing. The aim of this study was to develop and validate an automatic system to register position...

  13. Vocal behaviour in cattle: the animal's commentary on its biological processes and welfare

    Contributor(s):: Watts, J. M., Stookey, J. M.

  14. 'subordination style' in pigs? The response of pregnant sows to mixing stress affects their offspring's behaviour and stress reactivity

    Contributor(s):: Ison, S. H., D'Eath, R. B., Robson, S. K., Baxter, E. M., Ormandy, E., Douglas, A. J., Russell, J. A., Lawrence, A. B., Jarvis, S.

    In various mammals stress during gestation can result in long term effects on the behaviour and physiology of the offspring. The aims of this study were (i) to characterise individual variation among primiparous sows (gilts) in their behavioural and physiological response to a commercially...

  15. A flooring comparison: the impact of rubber mats on the health, behavior, and welfare of group-housed sows at breeding

    Contributor(s):: Elmore, M. R. P., Garner, J. P., Johnson, A. K., Richert, B. T., Pajor, E. A.

    Comfortable flooring may impact many aspects of an animal's welfare, including lying behavior, an animal's ability to change postures, and incidence of lameness and lesions. Therefore, we hypothesized that the addition of rubber mats to stalls of group pens would improve sow health, comfort and...

  16. A meta-analysis of the combined effect of housing and environmental enrichment characteristics on the behaviour and performance of pigs

    Contributor(s):: Averos, X., Brossard, L., Dourmad, J. Y., Greef, K. H. de, Edge, H. L., Edwards, S. A., Meunier-Salaun, M. C.

    To quantify the combined effect of housing conditions and environmental enrichment on the behaviour and performance of pigs, a meta-analysis was performed using information from 45 experiments in 42 published manuscripts. Multiple regression models were applied to evaluate the effects of space...

  17. A note on genetic parameters of gilt responses to humans

    Contributor(s):: Hellbrugge, B., Tolle, K. H., Presuhn, U., Krieter, J.

    In this study, a response test towards a stockperson was evaluated for improved maternal behaviour and increased piglet survival. Records were available from 638 German Landrace gilts with 860 observations tested for the response to an observer in the familiar environment of the mating centre....

  18. A novel flexible method to split feeding behaviour into bouts

    Contributor(s):: Howie, J. A., Tolkamp, B. J., Avendano, S., Kyriazakis, I.

    Before meal patterns can be analysed properly, a biologically relevant meal criterion must be determined in order to group short-term feeding behaviour into meals. Existing methodologies are based on modelling of the frequency distributions of intervals between feeding events but these methods...

  19. A review of environmental enrichment for pigs housed in intensive housing systems

    Contributor(s):: de Weerd, H. A. van, Day, J. E. L.

    This paper critically reviews the literature concerning environmental enrichment for weaner, grower and finisher pigs housed in intensive (indoor) production systems. The thesis of our review is that successful enrichment should meet four criteria of success: (1) it should increase...

  20. Artificial illumination reduces bait-take by small rainforest mammals

    Contributor(s):: Bengsen, A. J., Leung, L. K. P., Lapidge, S. J., Gordon, I. J.

    Small mammals often moderate their foraging behaviour in response to cues indicating a high local predation risk. We assessed the ability of cues associated with a high predation risk to reduce the consumption of bait by non-target small mammal species in a tropical rainforest, without inhibiting...