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  1. Mating behavior of bucks and does in goat operations under range conditions

    Contributor(s):: Mellado, M., Cardenas, C., Ruiz, F.

    The objectives of this study were to characterize the mating capacity of bucks under range condition and assess the effect of mating frequency on flock fertility. Two adjacent flocks of crossbred goats (Criollo x dairy goat breeds; n = 70 does, 5 bucks and 141 does, 4 bucks) were used. The mating...

  2. The temporal estrous patterns of female alpine musk deer in captivity

    Contributor(s):: Meng, XiuXiang, Yang, QiSen, Xia, Lin, Feng, ZuoJian, Jiang, YingWen, Wang, PeiMing

    From 1996 to 2000, we collected data about rutting habits of captive Alpine musk deer (Moschus sifanicus) in the Breeding Center of Alpine Musk Deer (BCAMD) located in the Xinglongshan National Nature Reserve of China. We examined the temporal rutting patterns to determine the timing and...

  3. Do female broiler breeder fowl display a preference for broiler breeder or laying strain males in a Y-maze test?

    Contributor(s):: Millman, S. T., Duncan, I. J. H.

    In recent years, the commercial broiler breeder industry has reported problems of male aggression towards females. Although this aggression is shown by the males and is apparently a defect in their behaviour, it is also possible that it stems in some way from the females. For example, broiler...

  4. Development and validation of a new method for visual detection of estrus in mithun ( Bos frontalis )

    Contributor(s):: Mohan, Mondal, Muthupalani, Karunakaran, Chandan, Rajkhowa, Prakash, B. S.

    The objectives of this study were (1) to develop a suitable scoring scale for oestrus detection based on frequency and reliability of behavioural signs of oestrus in mithun (Bos frontalis) and (2) to validate the accuracy of this method for detection of oestrus in primi- and multiparous mithun...

  5. Effect of different rearing systems and pre-kindling handling on behaviour and performance of rabbit does

    Contributor(s):: Mugnai, C., Bosco, A. dal, Castellini, C.

    The aim of this study was to ascertain how collective cage and pre-kindling handling (training does to go into their own nest) practices, in comparison to standard housing (single cage rearing), modify the behaviour and the performance of rabbit does. To this aim, 40 nulliparous New Zealand White...

  6. Continuous presence of rams hastens the onset of estrus in ewes synchronized during the breeding season

    Contributor(s):: Romano, J. E., Christians, C. J., Crabo, B. G.

    90 pluriparous ewes (30 Whiteface Western, 30 Suffolk and 30 Hampshire Down) from the St. Paul Sheep Teaching and Research Unit of the University of Minnesota (USA) were divided by breed and oestrous was synchronized with intravaginal sponges. These sponges were impregnated with...

  7. The effect of exposure to oestrous ewes on rams' sexual behaviour, plasma testosterone concentration and ability to stimulate ovulation in seasonally anoestrous ewes

    Contributor(s):: Rosa, H. J. D., Juniper, D. T., Bryant, M. J.

    272 ewes were introduced to (1) rams without recent experience of oestrous ewes, (2) rams recently exposed to oestrous ewes, (3) and (4) oestrous ewes and rams with or without recent experience with oestrous ewes, or (5) remained isolated from rams. Serum testosterone concentration of rams was...

  8. Influence of post-calving regrouping strategy on welfare and performance parameters in dairy heifers

    Contributor(s):: O'Connell, N. E., Wicks, H. C. F., Carson, A. F., McCoy, M. A.

    Thirty-six Holstein Friesian heifers (dairy herd replacements) were assigned to one of three regrouping treatments during the post-calving period. In Treatment 1, heifers were introduced individually to an established group of cows and heifers within 24 h of calving ('Single - day 1'). In...

  9. Social order measured in pasture and pen conditions and its relationship to sexual behavior in Brahman ( Bos indicus ) cows

    Contributor(s):: Orihuela, A., Galina, C. S.

    The social order of 20 non-lactating, non-pregnant Brahman cows (2-6 years old) was determined by recording content and outcome of all agonistic interactions. The herd was observed at pasture for 1.5 h and in a yard for 2 h per day. This routine was undertaken every other day from 06.00 to 18.00...

  10. Ethiopian village dogs: behavioural responses to a stranger's approach

    Contributor(s):: Ortolani, A., Vernooij, H., Coppinger, R.

    We studied the behavioural ecological characteristics of free-roaming dogs (Canis familiaris) in four Ethiopian villages via observational surveys. The Ethiopian village dogs surveyed in this study have similar characteristics to other free-roaming dog populations in the world: (1) they are...

  11. Preventing physical interactions between parturient ewes and their neonate differentially impairs the development of maternal responsiveness and selectivity depending on maternal experience

    Contributor(s):: Otal, J., Levy, F., Cornilleau, F., Moussu, C., Keller, M., Poindron, P.

    The present study investigated whether deprivation of nursing or of any physical interaction with the lamb impairs the onset of maternal responsiveness and the establishment of selectivity in primiparous and multiparous ewes. Just after parturition, ewes could interact freely with their lamb, or...

  12. Inter- and intra-sexual behaviour of free-ranging dogs ( Canis familiaris )

    Contributor(s):: Pal, S. K., Ghosh, B., Roy, S.

    During March 1994 to February 1997 the sexual behaviour of a total of 292 free-ranging dogs was observed weekly in the town of Katwa in West Bengal. Of all resident females, 20 oestrus females were studied as focal animals. The number of males which courted a female ranged from 6 to 28 (mean...

  13. The influence of adverse or gentle handling procedures on sexual behaviour in fearful and confident sows

    Contributor(s):: Pedersen, L. J., Damm, B. I., Kongsted, A. G.

    In the present study, the influence of handling during lactation on fear of humans and on sexual behaviour in the presence and absence of a human was investigated. Prior to handling, the sows were selected as being either fearful (n=24) or confident (n=24) towards humans based on their reactions...

  14. 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...

  15. Quality of handling and holding yard environment, and beef cattle temperament: 2. Consequences for stress and productivity

    Contributor(s):: Petherick, J. C., Doogan, V. J., Venus, B. K., Holroyd, R. G., Olsson, P.

    This experiment assessed the effects of different quality and quantity of handling and quality of the holding yard environment on the productivity and physiological parameters indicative of stress in beef cattle. One-hundred-and-forty-four steers were given one of three human handling and yarding...

  16. Sow behaviour involved in the crushing of piglets in outdoor farrowing huts - a brief report

    Contributor(s):: Vieuille, C., Berger, F., Pape, G. le, Bellanger, D.

    This study focuses on maternal activities involved in the trapping of piglets by the sow's body in outdoor farrowing systems and examine the mother-piglet context leading either to the death of piglets or to their survival. The behaviour of six Large-White x Landrace sows and their litters was...

  17. Timing of the attraction towards the placenta and amniotic fluid by the parturient cow

    Contributor(s):: Pinheiro Machado F, L. C., Hurnik, J. F., King, G. J.

    Using 13 periparturient Holstein cows, 9 preference tests were video-recorded: at 6 months of pregnancy; at 48, 24, 12, and 6 h before expected parturition; and at 1, 4, 12, and 24 h after parturition. The preference tests were: 6 min choice between a trough containing silage or donor placental...

  18. Alternative housing for sows and litters. Part 5. Individual differences in the maternal behaviour of sows

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

    'Sow-controlled' housing has been developed to address welfare and production concerns associated with close confinement of the lactating sow and her litter, by permitting the sow to leave the litter at will. However, there is a risk that variation in the use of the piglet-free ('get-away') area...

  19. Male-male competition fails to sexually stimulate domestic rams

    Contributor(s):: Price, E. O., Borgwardt, R. E., Dally, M. R.

    Male domestic sheep are non-territorial and mate in multiple-male mating groups in which males compete for access to females. The following study tests whether rams are sexually stimulated by participation in or observation of male-male competition for oestrous ewes and if so, whether the...

  20. Behavioural differences in non-reproductive adult females in a long-term selection experiment for litter size in mice

    Contributor(s):: Rauw, W. M., Luiting, P., Bakken, M., Schuurman, T., Veer, C. J. M. de, Vangen, O.

    To investigate whether coping strategies have been affected as a correlated effect of selection for high litter size, 48 non-reproductive mature C- and S-line females were twice subjected to an open field, seven times to a maze, once to a social confrontation and twice to a runway test. The...