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  1. Alternative housing for sows and litters 1. Effects of sow-controlled housing on responses to weaning

    Contributor(s):: Pajor, E. A., Weary, D. M., Fraser, D., Kramer, D. L.

    A sow-controlled housing system and its affects on production and welfare problems resulting from the abrupt separation of piglets from sows at weaning was investigated. 44 sows and litters were housed during lactation in either a 'confined' pen where the sow and litter were kept together, or a...

  2. Alternative housing for sows and litters: 2. Effects of a communal piglet area on pre- and post-weaning behaviour and performance

    Contributor(s):: Weary, D. M., Pajor, E. A., Bonenfant, M., Ross, S. K., Fraser, D., Kramer, D. L.

    An experiment was conducted to determine how allowing piglets access to a communal area affects pre-weaning and post-weaning behaviour and performance. Litters were housed in pens with sows in crates until piglets reached 11 days of age. For 10 experimental cohorts, barriers between the pens of...

  3. Effects of grouping piglets and changing sow location on suckling behaviour and performance

    Contributor(s):: Wattanakul, W., Stewart, A. H., Edwards, S. A., English, P. R.

    36 sows and litters were used to study how suckling behaviour was influenced by grouping of piglets and changing sow location under controlled conditions. Control sows (C) remained in farrowing pens with crates until weaning at 28 days. In treatment 1 (T1), piglets from 3 litters were grouped in...

  4. Effects of straw bedding and high fibre diets on the behaviour of floor fed group-housed sows

    Contributor(s):: Whittaker, X., Edwards, S. A., Spoolder, H. A. M., Lawrence, A. B., Corning, S.

    Twenty groups of 7 multiparous Landrace x Large White sows were used in a 2 x 2 factorial design to investigate the effects on behaviour of floor feeding sows the same daily weight of isoenergetic conventional (C) or high fibre (H containing 600 g of unmolassed sugar beet pulp/kg diet) pregnancy...

  5. Oestrus and mating behaviour in gilts during boar induced puberty in relation to stress and housing

    Contributor(s):: Pedersen, L. J., Jensen, K. H., Giersing Linder, A.

    The effect of intermittent electroshock and individual vs. pair housing on sexual proceptive behaviour was studied in 48 large White x Danish Landrace gilts. In addition, the effect of intermittent electroshock on the behavioural response to boar stimulation and on sexual receptivity during first...

  6. Oral/nasal/facial and other behaviors of sows kept individually outdoors on pasture, soil or indoors in gestation crates

    Contributor(s):: Dailey, J. W., McGlone, J. J.

    PIC Camborough-15 sows were housed either on pasture (n=8), on soil (n=8) or in gestation crates (n=16). All were fed 2.0 kg of fortified sorghum-soybean diet each day in pellet form, except half of the crated sows which were fed meal. The occurrences of standing, lying, sitting, feeding,...

  7. Pregnant gilt behavior in outdoor and indoor intensive pork production systems

    Contributor(s):: Dailey, J. W., McGlone, J. J.

    The behaviour of three genotypes of gilts, PIC Camborough-15 (C-15), PIC Camborough-Blue (CB), and YorkxLandrace (YL), were compared in an English-style extensive outdoor production system and an intensive indoor system. Mutually exclusive behaviours were defined and recorded and included...

  8. A sequential analysis of eliminative behaviour in domestic pigs

    Contributor(s):: Wechsler, B., Bachmann, I.

    Knowledge of eliminative behaviour in pigs is of much importance for the design of housing systems in order to minimise soiling of the lying area. 53 piglets, 136 fatteners, 272 finishers and 277 sows were observed as focal animals at regularly used dunging areas in a highly structured housing...

  9. Behaviour and distribution of fattening pigs in the multi-activity pen

    Contributor(s):: Simonsen, H. B.

    Five groups of fattening pigs were observed in an experimental multi-activity pen with environmental enrichment. The pen measuring 36 msuperscript 2 included sections containing straw, feed and water connected by two corridors. In addition the pigs had access to straw racks, a shower and...

  10. Behaviour of fattening pigs in a labyrinth pen with environmental variation

    Contributor(s):: Simonsen, H. B., Agger, J. F.

    Social interactions and the use of feeders, water nipples and a shower were recorded for 8 pigs in an experimental pen. The incidence rate of the total number of social interactions was highest (3.55 per 15 pig-minutes) in the water supply section and lowest in the straw section (1.97 per 15...

  11. Behavioural reaction of individual pigs raised in different environments to a novel object and to handling at slaughter in relation to measurements of the adrenal cortex

    Contributor(s):: Rasmussen, A. A.

  12. Effect of housing on in situ postures of gestating gilts

    Contributor(s):: Taylor, L., Friend, T., Smith, L. A.

    Behaviour of gilts housed in tethered housing, crates, loose housing or dirtlot was video-recorded for 48-h observation periods commencing on days 0, 7 and 63. Lying was the most frequent activity, ranging from 65 to 90

  13. Influences of intermittent daily draught on the behaviour of weaned pigs

    Contributor(s):: Scheepens, C. J. M., Hessing, M. J. C., Laarakker, E., Schouten, W. G. P., Tielen, M. J. M.

    The influence of time-unpredictable draught (forced cold air) on the behaviour of pigs was observed in a climate-controlled pig house with 2 identical rooms each with 5 pens. Two days after farrowing, pigs were matched pairwise to correct for genetic, weight and sex differences, and weaning at an...

  14. Open-field test behaviour of growing swine maintained on a concrete floor and a pasture

    Contributor(s):: Taylor, L., Friend, T. H.

    Open-field test behaviours of 5 barrows and 5 gilts from each of two housing treatments were recorded for 5-minute periods. The pigs had been housed in their respective systems (pasture or concrete floor) for 6 weeks and averaged 18 weeks old at the time of the experiment. The 38 x 198-m pasture...

  15. Sow body movements that crush piglets: a comparison between two types of farrowing accommodation

    Contributor(s):: Weary, D. M., Pajor, E. A., Fraser, D., Honkanen, A. M.

    The behavior of 20 sows and their litters kept in farrowing crates or more open pens was video recorded for 4 days after farrowing. 24 piglets were killed by maternal crushing during the study (4 in the farrowing crates, 20 in the pens). On 98 other occasions (30 in the farrowing crates, 68 in...

  16. Stereotypies, aggression and the feeding schedules of tethered sows

    Contributor(s):: Rushen, J. P.

    Thirty, adult, pregnant, tethered sows were observed for 5 min every 0.5 h for 9 h spanning the 2 feeding periods. Activity, consisting largely of food-searching behaviour and drinking, was largely restricted to two 2-h periods following each feed. Three categories of stereotyped behaviour were...

  17. The effects of group size/stocking density on weanling pig performance and behavior

    Contributor(s):: Spicer, H. M., Aherne, F. X.

    77 Yorkshire X Landrace pigs from 10 litters were weaned at 28 days of age and housed in group sizes of 1, 2 or 4 pigs per pen. For the 28-day experimental period, body weight gain and voluntary feed consumption were significantly lower for pigs housed in groups of 4 than for other pigs. The...

  18. The influence of different social and physical environments on the incidence of lactational oestrus in sows

    Contributor(s):: Stolba, A., Henderson, R., Wechsler, B.

    The behaviour of sows and their litters housed in different environments of increasing social and physical complexity was observed. Lactational oestrus occurred only in the most complex housing system (4 sows grouped, full boar contact, four indoor pens with four connected outside yards). The...

  19. The relationship between housing and social rank on cortisol, beta -endorphin and dynorphin (1-13) secretion in sows

    Contributor(s):: Zanella, A. J., Brunner, P., Unshelm, J., Mendl, M. T., Broom, D. M.

    Endogenous opioids and glucocorticoids may be useful welfare indicators in pigs. Measures of plasma cortisol were carried out in plasma samples collected hourly, from 8:00 to 17:00 h from High Ranking (HR) (n = 5) Middle Ranking (MR) (n = 7) and Low Ranking (LR) (n = 4) group housed sows and from...

  20. The sexual motivation of boars housed adjacent to ovariectomised gilts did not affect the efficiency of detecting hormonally induced oestrus using the back pressure test

    Contributor(s):: Turner, A. I., Hemsworth, P. H., Tilbrook, A. J.

    This study tested the hypothesis that the efficiency of detecting oestrus in gilts using the back pressure test will be lower when gilts are housed adjacent to a boar of high sexual motivation than when they are housed adjacent to a boar of low sexual motivation. The experiment was a 2 x 2 Latin...