HABRI Central - Tags: Boars
You are here: Home / Tags / Boars / All Categories

Tags: Boars

All Categories (21-40 of 52)

  1. Beasts in the jungle (or wherever)

    Contributor(s):: Ritvo, Harriet

  2. Effect of Birth Weight and Human Socialization on Reproductive Performance of Adult A.I. Boars.

    Contributor(s):: Nikhol Elizabeth Dysart

    The objective of this study was to examine the effect of birth weight and socialization prior to puberty on reproductive performance of A.I. boars. Twenty boars were randomly allocated to a factorial arrangement of treatments including birth weight (BW: High or Low) and socialization to...

  3. A review of the welfare consequences of surgical castration in piglets and the evaluation of non-surgical methods

    Contributor(s):: Prunier, A., Bonneau, M., Borell, E. H. von, Cinotti, S., Gunn, M., Fredriksen, B., Giersing, M., Morton, D. B., Tuyttens, F. A. M., Velarde, A.

  4. Consumer attitudes towards alternatives to piglet castration without pain relief in organic farming: qualitative results from Germany

    Contributor(s):: Heid, A., Hamm, U.

  5. The welfare of low-volume farm animals during transport and at slaughter: a review of current knowledge and recommendations for future research

    Contributor(s):: Bornett-Gauci, H. L. I., Martin, J. E., Arney, D. R.

  6. The behaviour of male fattening pigs following either surgical castration or vaccination with a GnRF vaccine

    | Contributor(s):: Baumgartner, J., Laister, S., Koller, M., Pfutzner, A., Grodzycki, M., Andrews, S., Schmoll, F.

    Vaccination of male fattening pigs with a gonadotropin releasing factor (GnRF) vaccine is regarded as a possible solution to solve the welfare problem associated with surgical castration, which causes pain and stress even when performed under local or general anaesthesia. The objective of the...

  7. The reproductive behaviour of pigs in a dynamic service system for gilts

    | Contributor(s):: Grigoriadis, D. F., Edwards, S. A., English, P. R., Davidson, F. M.

    The behaviour of 80 gilts and 14 boars was observed over a 54-day period in a dynamic service system with pens of 20 gilts and 4-5 boars. The female population of the system was changed on a regular basis (four animals in, four animals out per week) while boars were resident. Altogether 933...

  8. 'Libido' in the larger farm animals: a review

    | Contributor(s):: Wodzicka-Tomaszewska, M., Kilgour, R., Ryan, M.

    The term 'libido', first used by Freud to refer to the force by which the sexual instinct is represented in the mind, has become more and more used to refer to some aspects of sexual behaviour in large domestic animals. From being a wide, rather imprecise term, it has come to be defined...

  9. Studies on reproductive behaviour in pigs and sheep

    | Contributor(s):: Signoret, J. P.

  10. The social environment and the sexual behaviour of the domestic boar

    | Contributor(s):: Hemsworth, P. H.

  11. 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...

  12. 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...

  13. Surgical castration of pigs affects the behavioural response to a low-dose lipopolysaccharide (LPS) challenge after weaning

    | Contributor(s):: Moya, S. L., Boyle, L. A., Lynch, P. B., Arkins, S.

    The objective of the present study was to evaluate the effect of an acute stressor in the early postnatal life of pigs, surgical castration, on post-weaning behaviour, and on the behavioural, endocrine and immune responses elicited by a low-dose lipopolysaccharide (LPS) challenge after weaning....

  14. The effect of space restriction and provision of toys during rearing on the behaviour, productivity and physiology of male pigs

    | Contributor(s):: Pearce, G. P., Paterson, A. M.

    The effect of space restriction during rearing between 25 and 100 kg liveweight was investigated using a total of 42 Large White/Landrace crossbred male pigs. Pigs were housed in 6 groups of 7 in 3 treatments (uncrowded, crowded and crowded + toys, 14 pigs per treatment) in partially slatted...

  15. Boar presence reduces fighting in mixed slaughter-weight pigs

    Full-text: Available

    | Contributor(s):: Grandin, T., Bruning, J.

    The article studies the presence of boars in reducing fighting in the groups of pigs therefore reducing skin blemishes.

  16. Effects of artificial boar stimuli on the expression of oestrus in sows

    | Contributor(s):: Gerritsen, R., Langendijk, P., Soede, N., Kemp, B.

    In this study, the effects of artificial boar stimuli on oestrus expression in sows were compared to that of a boar. During consecutive cycles, 12 gilts and 38 sows were subjected to one of the three treatments. A Back-Pressure-Test (BPT) was carried out twice daily in the presence of a robot...

  17. Feeding pigs: divergence of behavioural and physiological requirements

    | Contributor(s):: Lawrence, A. B., Appleby, M. C., Macleod, H. A.

    In experiments in which hunger in Large WhitexLandrace boars was measured by conditioning them to press a panel to receive 7-g rewards of food, it was concluded that restricting pigs to low food allowances results in a high level of hunger throughout the day. It is suggested that commercial food...

  18. The effects of two oestrus detection procedures and intense boar stimulation near the time of oestrus on mating efficiency of the female pig

    | Contributor(s):: Hemsworth, P. H., Cronin, G. M., Hansen, C., Winfield, C. G.

    In the 1st of 2 experiments, 32 crossbred gilts, aged 12-14 months and which had exhibited >=6 regular oestrous cycles, were checked each morning for oestrus in the corridor adjacent to boar pens (group 1) or in their own pens, which were separated from the boars pens by a 1.0-m wide corridor...

  19. The efficiency of boars to detect oestrous females housed adjacent to boars

    | Contributor(s):: Hemsworth, P. H., Winfield, C. G., Barnett, J. L., Hansen, C., Schirmer, B., Foote, M.

    42 postpubertal gilts were observed for a 21-day period under each of 3 treatments. In treatments 1 and 2, gilts were housed adjacent to a mature boar; treatments were identical except that a different boar was used in each treatment to detect gilts in oestrus. Gilts in treatment 3 were housed...

  20. The influence of conditions at the time of mating on the sexual behaviour of male and female pigs

    | Contributor(s):: Jongman, E. C., Hemsworth, P. H., Galloway, D. B.

    The sexual behaviour of 6-month-old boars and gilts mating in the boar's accommodation pen was compared with that of boars and gilts mating in a mating system called the Detection Mating Area (DMA), in which the boars are housed in individual stalls around a large central arena which is used for...