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  1. '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 in a...

  2. '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...

  3. A brief note about cow lying behaviour - do cows choose left and right lying side equally?

    Contributor(s):: Forsberg, A. M., Pettersson, G., Ljungberg, T., Svennersten-Sjaunja, K.

    The factors influencing cows' lying behaviour are not fully evaluated. Most studies dealing with lying behaviour were primarily aimed at comparing different designs for the resting area and floor surfaces, while only a few studies have investigated the cows' preference of lying side. The aim of...

  4. A brief report on the relationship between level of milk production and estrous behavior of lactating dairy cows

    Contributor(s):: Lopez, H., Satter, L. D., Wiltbank, M. C.

    The objective of this study was to evaluate if there was an association between milk production and duration of estrus in lactating cows as determined by standing activity recorded by a radiotelemetry system. Holstein cows (n=42) were fitted with a radiotelemetric transmitter that allowed...

  5. A comparison of carcass characteristics and overall lean meat production efficiency between bovine immunocastrates, steers and intact males

    Contributor(s):: Teague, G. L., Boyd, G. W., Smith, G. C., Finnerty, M., Rollin, B. E., Field, T. G., Grandin, T., Kniffen, D. M., Taylor, R. E., Enright, W. J.

  6. A comparison of operant responding by farrowing sows for food and nest-building materials

    Contributor(s):: Hutson, G. D.

    In experiments on 4 days immediately before and after parturition with 16 sows trained to lift a lever to gain access to either a box containing straw, a box containing sticks, an empty box, or a food drop, sows lifted more for food than for the empty box or nest-building materials. On any day...

  7. A comparison of the effects of two oestrus detection procedures and two housing systems on the oestrus detection rate of female pigs

    Contributor(s):: Hemsworth, P. H., Winfield, C. G., Barnett, J. L., Schirmer, B., Hanse, C.

    In the 1st experiment, high oestrus detection rates (percentage of cycling gilts that were detected in oestrus) were achieved when cycling gilts which were kept near (but not adjacent to) boars, were checked for oestrus using either the back-pressure test (BPT) in close proximity to boars or a...

  8. A cross-sectional study of prevalence and risk factors for foot lesions and abnormal posture in lactating sows on commercial farms in England

    Contributor(s):: Kilbride, A. L., Gillman, C. E., Green, L. E.

    A cross-sectional study of lactating sows in 71 commercial pig herds in England was carried out to estimate the prevalence of foot lesions and abnormal posture and investigate the associated risks. Observational data were collected on the standing posture, lesions on the hind left foot, and the...

  9. A cross-sectional study of the prevalence of lameness in finishing pigs, gilts and pregnant sows and associations with limb lesions and floor types on commercial farms in England

    Contributor(s):: Kilbride, A. L., Gillman, C. E., Green, L. E.

    The prevalence and risks for abnormal gait in finishing pigs (Sus scrofa), gilts and pregnant sows from a representative cross-section of indoor and outdoor herds in the United Kingdom were investigated. The prevalence of abnormal gait in finishing pigs, maiden gilts, pregnant gilts and pregnant...

  10. A mouse is not just a mouse

    Contributor(s):: Sluyter, F., Oortmerssen, G. A. van

    In this review, we describe the existence and consequences of subspecific and individual variation in the genetic make-up of house mice. The purpose is to illustrate forms of variation that are often neglected in discussions about animal care and experimental design. Different inbred mouse...

  11. A new approach to overcoming a yearling Holstein bull's complete lack of motivation to mounting

    Contributor(s):: Foote, R. H., Presicce, G. A., Brockett, C. C.

    A young Holstein bull, selected for semen evaluation, was presented with a variety of sexual stimuli in an attempt to induce it to mount teaser animals and serve an artificial vagina. The bull was tested on 25 occasions and was scheduled for slaughter at 17 months of age because of a total...

  12. A note on behavioural response to a novel arena in lactating mice highly selected for litter size

    Contributor(s):: Rauw, W. M.

    In an earlier experiment it was found that adult non-reproductive virgin female mice from a line selected for 91 generations for high litter size at birth (S-line; about 20 pups per litter) showed similar or more locomotion activity in four novelty behavioural tests (open-field, runway, maze and...

  13. A note on effects of gender and time of day on the winter time-activity budget of adult ostriches ( Struthio camelus ) in a farming environment

    Contributor(s):: Deeming, D. C.

    Male and female adult ostriches, maintained in 3 pairs and 6 trios on a commercial ostrich farm in Britain, were observed for five 10-min periods in the morning and afternoon during February 1997. Weather conditions included periods of rain, high winds, overcast days and bright sunny days, and...

  14. A note on genetic parameters for estrus symptoms in sows

    Contributor(s):: Gade, S., Bennewitz, J., Kirchner, K., Looft, H., Knap, P. W., Thaller, G., Kalm, E.

    Showing clear estrus symptoms contributes to the reproductive effectiveness of a sow. The aim of the study was to estimate genetic parameters and breeding values for estrus symptoms, a trait which included swelling and reddening of the vulva, interest in the boar and strength of the standing...

  15. 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....

  16. A note on mating preferences in Rasa Aragonesa rams

    Contributor(s):: Abecia, J. A., Maria, G., Forcada, F.

    Two experiments were conducted to determine whether Rasa Aragonesa rams, a Mediterranean breed, mount ewes randomly or preferentially when presented with a group of 12 oestrous-synchronized ewes during the period of natural seasonal anoestrus. In the first experiment, 12 Rasa Aragonesa ewes were...

  17. A note on ram preference by oestrous ewes: influence of rams' age and sexual performance

    Contributor(s):: Ramos, M. A., Ungerfeld, R.

    Ewes in oestrus, besides being receptive to rams, develop an active search for them. We performed two experiments to determine if oestrous ewes prefer: (1) high or low sexual-performance rams, and (2) 2-year-old or aged (>8-years-old) rams. In the first experiment, the preference of ewes for rams...

  18. A note on resting behaviour of cows before and after calving in two different housing systems

    Contributor(s):: Dechamps, P., Nicks, B., Canart, B., Gielen, M., Istasse, L.

    The resting behaviour of 19 crossbred Friesian x Belgian White-Blue cows was observed during two 3-day periods at about 3 months' interval. Trial 1 was carried out with pregnant cows on average 41.8 days before calving. Trial 2 was conducted with the same cows in lactation, 60.6 days after...

  19. A note on separation from one or more lamb(s) in Merino lines divergently selected for ewe multiple rearing ability

    Contributor(s):: Cloete, S. W. P., Scholtz, A. J., Hoope, J. M. T.

    During 1993-95, post parturient behaviour was studied in 370 Merino ewes, 2-6 years of age, from 2 lines divergently selected for multiple rearing ability kept at the Elsenburg Development Institute. Since 1986, high line ram and ewe replacements had been selected from dams that reared >1 lamb...

  20. A note on silent ovulation identified by using radiotelemetry for estrous detection

    Contributor(s):: Shipka, M. P.

    The occurrence of silent ovulation in high-producing, postpartum Holstein cows was examined. 19 multiparous cows were fitted with transmitters (HeatwatchReg.) for radiotelemetry and examined using a visual oestrus detection routine for 1/2 h twice daily, on day 10 post partum. Blood samples were...