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All Categories (101-120 of 231)

  1. Applied animal behaviour science. (Special issue: Suckling)

    Contributor(s):: Lidfors, L., Svennersten-Sjaunja, K., Redbo, I.

    This supplement contains articles that focus on behavioural and physiological aspects of suckling and/or sucking in ruminants. Abnormal sucking behaviour, particularly cross-sucking and non-nutritive sucking, in calves are presented; and the effects of milk flow and milk volume, the presence of a...

  2. Castration induced pain in pigs and other livestock. (Special Issue: Pain in farm animals.)

    Contributor(s):: Rault, J. L., Lay, D. C., Jr., Marchant-Forde, J. N.

    Castration of male livestock being reared for meat has long been practiced, to prevent unwanted breeding, make management and handling easier, and to improve meat quality. However, castration is a painful procedure for the animal and has increasingly come under scrutiny from animal welfare...

  3. Characteristics of wild pig farrowing nests and beds in the upper Coastal Plain of South Carolina

    Contributor(s):: Mayer, J. J., Martin, F. D., Brisbin, I. L., Jr.

    Thirteen farrowing nests and 9 resting/loafing beds built by wild pigs (Sus scrofa) from an introduced population in South Carolina, USA, were studied with respect to physical description, size parameters, the animals involved, and adjacent surroundings. The nests, built by pre-parturition sows,...

  4. Comparing fostering success between wild-caught and game farm bred captive red-legged partridges ( Alectoris rufa , L.)

    Contributor(s):: Sanchez-Garcia, C., Alonso, M. E., Perez, J. A., Rodriguez, P. L., Ramiro Gaudioso, V.

    As fostered game birds are better prepared for releasing in comparison to those intensively reared, fostering of wild and game farm red-legged partridges (Alectoris rufa) was studied on a semi-natural rearing farm using farm-hatched chicks. Parent pairs, barren pairs and single individuals from...

  5. 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...

  6. Correlates of self-directed and stereotypic behaviours in captive red-capped mangabeys ( Cercocebus torquatus torquatus )

    Contributor(s):: Reamer, L., Tooze, Z., Coulson, C., Semple, S.

    The quantification of behaviours linked to anxiety or stress provides a powerful means to address applied questions related to the well-being of captive animals. This study explored correlates of two such behaviours - self-directed (SDB) and stereotypic behaviour (STB) - among captive red-capped...

  7. Determinants of reproductive success in force-re-paired cockatiels ( Nymphicus hollandicus )

    Contributor(s):: Stone, E. G., Millam, J. R., El-Halawani, M. E., Phillips, R. E., Redig, P. T.

    58 previously paired cockatiels were re-paired with mates with which they had never been previously paired. Males (M) and females (F) were assigned a breeding history that was 'experienced' (E) or 'inexperienced' (I), depending on whether they were part of a pair that had hatched at least one egg...

  8. 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...

  9. Does in proestrus-estrus hasten estrus onset in does estrous synchronized during breeding season

    Contributor(s):: Romano, J. E.

    During the breeding season, 68 Nubian goats were synchronized for oestrus with intravaginal sponges impregnated with fluorgestone acetate (FGA, Chronogest, 30 mg; n=36) or medroxyprogesterone acetate (MAP, Sincrocel, 60 mg; n=32). The experiment was performed in two replicates. In each replicate,...

  10. 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...

  11. Effect of natal dispersal on the reproductive strategies of the young Misaki feral stallions

    Contributor(s):: Khalil, A. M., Murakami, N.

    The behaviour of 12 young male Misaki feral horses was observed once a week from January 1988 to March 1997 on Kyushu Island, Japan. The behaviour of young stallions has previously been grouped into 2 categories: (1) a development stage which occurs just after separation from the dam, where the...

  12. Effects of different suckling systems on milk production, udder health, reproduction, calf growth and some behavioural aspects in high producing dairy cows - a review. (Special issue: Suckling)

    Contributor(s):: Krohn, C. C.

    This article discusses the consequences of different suckling systems in industrial countries on milk production, udder health, reproduction and behaviour of high-producing dairy cows, and the effects on the gain, health and behaviour of the calves. The suckling systems are divided into three...

  13. Effects of gender and group size on the time-activity budgets of adult breeding ostriches ( Struthio camelus ) in a farming environment

    Contributor(s):: McKeegan, D. E. F., Deeming, D. C.

    Twenty-six adult ostriches in breeding condition, maintained outdoors, were studied to determine their diurnal time-activity budget in the UK during the months of July and August. Males and females from pairs (1 male, 1 female), trios (1 male, 2 females), a small group (group 1: 3 males 8...

  14. Identifying and preventing pain during and after surgery in farm animals. (Special Issue: Pain in farm animals.)

    Contributor(s):: Walker, K. A., Duffield, T. F., Weary, D. M.

    Pain research in farm animals has focused on routine husbandry procedures such as dehorning; much less known about the pain associated with the other surgeries such as those required for displaced abomasum and caesarean delivery. We review the literature on pain in farm animals due to non-routine...

  15. Immunocontraception decreases group fidelity in a feral horse population during the non-breeding season

    Contributor(s):: Nunez, C. M. V., Adelman, J. S., Mason, C., Rubenstein, D. I.

    The behavioral effects of the immunocontraceptive agent porcine zona pellucida (PZP) have not been adequately studied. Important managerial decisions for several species, including the wild horse (Equus caballus), have been based on this limited research. We studied 30 horses on Shackleford...

  16. Increased reproductive output in stereotypic captive Rhabdomys females: potential implications for captive breeding

    Contributor(s):: Jones, M. A., Lierop, M. van, Mason, G., Pillay, N.

    Captive animal populations can diverge considerably from populations in the wild, despite the animals not being deliberately domesticated. If the phenotypes which are of benefit in captivity are heritable, the genotypes of captive-stock can diverge swiftly and substantially from wild-stock. Using...

  17. Increased survival and reproductive success associated with stereotypical behaviours in laboratory-bred bank voles ( Clethrionomys glareolus )

    Contributor(s):: Schonecker, B.

    The aim of this study was to examine whether voles performing stereotypic behaviours (Ster) differed in physical welfare from voles, which did not develop stereotypies (N-Ster). The chosen variables were reproductive success and capacity to survive barren housing conditions. Furthermore, effect...

  18. 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...

  19. Influences of immunocontraception on time budgets, social behavior, and body condition in feral horses

    Contributor(s):: Ransom, J. I., Cade, B. S., Hobbs, N. T.

    Managers concerned with shrinking habitats and limited resources for wildlife seek effective tools for limiting population growth in some species. Fertility control is one such tool, yet little is known about its impacts on the behavioral ecology of wild, free-roaming animals. We investigated...

  20. Maternal behaviour in Mus musculus sp.: an ethological review

    Contributor(s):: Weber, E. M., Olsson, I. A. S.

    In this paper, we review the scientific literature on maternal behaviour in commensal house mice and laboratory mice. Similar to other altricial species, female mice prepare a nest before parturition. Once the pups are born, nursing is the main part of maternal behaviour, and pups are weaned...