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  1. Alternative housing for sows and litters. Part 4. Effects of sow-controlled housing combined with a communal piglet area on pre- and post-weaning behaviour and performance

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

    Previous experimental work has shown modest and variable production and welfare benefits for the lactating sow and piglets when sows are allowed to separate themselves temporarily from their piglets, or when piglets have access to a communal creep area sufficiently attractive that they spend...

  2. 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...

  3. 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...

  4. Are cows more likely to lie down the longer they stand?

    | Contributor(s):: Tolkamp, B. J., Haskell, M. J., Langford, F. M., Roberts, D. J., Morgan, C. A.

    Information on (changes in) standing and lying behaviour of cows can be used for oestrus detection, early diagnosis of disorders and to evaluate welfare consequences of changes in housing and management. Data sets on lying and standing behaviour were collected from cows with IceTagTM sensors...

  5. 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...

  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. 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...

  8. 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...

  9. 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...

  10. Developmental instability and light regime in chickens ( Gallus gallus )

    | Contributor(s):: Moller, A. P., Sanotra, G. S., Vestergaard, K. S.

    Fluctuating asymmetry, a measure of developmental instability, was measured in 3 skeletal characters in chickens raised under 3 different lighting regimes: (A) a 16:8 light-dark cycle, (B) a changing light regime, and (C) permanent light. Chickens reared under permanent light developed 40% larger...

  11. 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...

  12. 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,...

  13. 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...

  14. Effect of early fenceline exposure to estrous ewes on the sexual performance of yearling rams

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

    A total of 104 rams, 7-8 months of age, were given either no contact (NC), direct contact (DC) or fenceline (FL) exposure to oestrous ewes during a 3-week period in the autumn breeding season. When initially tested for sexual performance at 18-19 months, a higher proportion of NC rams exhibited...

  15. 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...

  16. Effect of the presence of a dominant bull on performance of two age group bulls in libido tests

    | Contributor(s):: Lopez, H., Orihuela, A., Silva, E.

    In 2 trials, twelve 15-month-old and ten 27-month-old sexually naive Simmental bulls were libido tested in the presence or absence of a dominant mature bull. In the 1st trial, individual sexual performance tests were conducted. On alternate tests days, a mature bull was present in an adjacent pen...

  17. 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...

  18. Effects of feed- and water-based enrichment on activity and cannibalism in Muscovy ducklings

    | Contributor(s):: Riber, A. B., Mench, J. A.

    Cannibalism is a major problem for commercial production of Muscovy ducks (Cairina moschata). Surprisingly little is known about the ontogeny of cannibalism in ducks or how to reduce/prevent the problem in a welfare-friendly way. The preventative method typically used by the industry is...

  19. Effects of repeated stress during pregnancy in ewes on the behavioural and physiological responses to stressful events and birth weight of their offspring

    | Contributor(s):: Roussel, S., Hemsworth, P. H., Boissy, A., Duvaux-Ponter, C.

    Stressors are frequently encountered during the pregnancies of farm animals. However, very few studies have investigated the effects of repeated stress in pregnant females on their offspring. Forty-eight ewes at 2.5 months of pregnancy were selected for their high or low cortisol response to...

  20. 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...