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  1. Nature and nature values in organic agriculture. An analysis of contested concepts and values among different actors in organic farming

    Contributor(s):: Hansen, L., Noe, E., Hojring, K.

    The relationship between agriculture and nature is a central issue in the current agricultural debate. Organic farming has ambitions and a special potential in relation to nature. Consideration for nature is part of the guiding principals of organic farming and many organic farmers are committed...

  2. Systems in organic dairy production

    Contributor(s):: Oudshoorn, F. W., Renes, R. J., Boer, I. J. M. de

    The aim of this study was to explore stakeholder perceptions of the contribution of an Automatic Milking System (AMS) to sustainable development of organic dairy production in Denmark and the Netherlands. In addition, reasons for the current difference in AMS use on organic dairy farms between...

  3. Association between resting behaviour and live weight gain in dairy heifers housed in pens with different space allowance and floor type

    Contributor(s):: Mogensen, L., Krohn, C. C., Sorensen, J. T., Hindhede, J., Nielsen, L. H.

    The hypothesis that daily liveweight gain is associated with resting behaviour in heifers was studied. The study was based on 2 experiments conducted on Danish commercial dairy farms with Danish Friesian heifers (300-400 kg) in the winter periods. Group size was 5-6 heifers/pen. Experiment A,...

  4. Divergent selection on feather pecking behaviour in laying hens ( Gallus gallus domesticus )

    Contributor(s):: Kjaer, J. B., Sorensen, P., Su, G.

    A selection experiment was initiated in 1996 in which selection for (HP line) and against (LP line) feather pecking was performed. The foundation stock was a White Leghorn layer strain established in 1970 and maintained since then as a random bred control line at the Institute. Six hatches were...

  5. Grouping horses according to gender - effects on aggression, spacing and injuries

    Contributor(s):: Jorgensen, G. H. M., Borsheim, L., Mejdell, C. M., Sondergaard, E., Boe, K. E.

    Many horse owners tend to group horses according to gender, in an attempt to reduce aggressive interactions and the risk of injuries. The aim of our experiment was to test the effects of such gender separation on injuries, social interactions and individual distance in domestic horses. A total of...

  6. 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...

  7. Resting and social behaviour of dairy heifers housed in slatted floor pens with different sized bedded lying areas

    Contributor(s):: Nielsen, L. H., Mogensen, L., Krohn, C., Hindhede, J., Sorensen, J. T.

    The hypothesis that an increase in the straw bedded resting area for group housed heifers would increase synchronization of resting behaviour and decrease aggressive and abnormal behaviour was tested. An experiment was conducted on 2 Danish commercial dairy farms with 20 Danish Friesian heifers...

  8. The involvement of dopamine (DA) and serotonin (5-HT) in stress-induced stereotypies in bank voles ( Clethrionomys glareolus )

    Contributor(s):: Schoenecker, B., Heller, K. E.

    In order to clarify the dependency of stress-induced stereotypies on dopamine (DA) and serotonin (5-HT) functioning, undisturbed and acutely stressed stereotyping bank voles were treated during 3 weeks with the commonly used human atypical neurolepticum clozapine and the SSRI antidepressant...

  9. Play behaviour in group-housed dairy calves, the effect of space allowance

    Contributor(s):: Jensen, M. B., Kyhn, R.

    96 Danish Holstein Friesian calves in 6 repetitions were housed in groups of 4, in pens of either 4, 3, 2.2 or 1.5 msuperscript 2 per calf from 2 weeks of age. The occurrence of play behaviour in the home environment was recorded continuously for each individual calf during 24 h at 5, 7 and 9...

  10. Social behaviour in stallion groups ( Equus przewalskii and Equus caballus ) kept under natural and domestic conditions

    Contributor(s):: Christensen, J. W., Zharkikh, T., Ladewig, J., Yasinetskaya, N.

    The aim of this study was to investigate social behaviour in differently reared stallions in their respective environments; one group of stallions was reared under typical domestic conditions whereas the other group was reared and lives under natural conditions. The domestic group consisted of...

  11. The association between fetching for milking and dairy cows' behaviour at milking, and avoidance of human approach - an on-farm study in herds with automatic milking systems

    Contributor(s):: Rousing, T., Badsberg, J. H., Klaas, I. C., Hindhede, J., Sorensen, J. T.

    The present study explores the welfare aspects of involuntary milking in dairy herds with an automatic milking system (AMS) as it focuses on whether fetching of cows for milking may be related to fear/discomfort of the automatic milking unit (AMU) or the milking itself and further, may strain the...

  12. The introduction of the precautionary principle in Danish environmental policy: the case of plant growth retardants

    Contributor(s):: Lokke, S., Christensen, P.

    In this paper, we investigate the Precautionary Principle (PP) in action. Precaution is a fairly new concept in environmental policy. It emerged back in the 1960s but did not consolidate until the 1980s, as it formed part of the major changes taking place in environmental policies at that time....

  13. Behaviour of dairy cows kept in extensive (loose housing/pasture) or intensive (tie stall) environments. III. Grooming, exploration and abnormal behaviour

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

    24 pairs of monozygotic twin dairy cows (Danish Friesian and Red Danish) were assigned to 4 groups of 12 in a balanced incomplete-block design. Group E: loose housing; ad lib. access to feeding table; deep bedding; a yard and pasture; and milking twice a day. Group N: tie stall; concrete floor...

  14. Expert consultation on weighting factors of criteria for assessing environmental enrichment materials for pigs

    Contributor(s):: Bracke, M. B. M., Zonderland, J. J., Bleumer, E. J. B.

    EC directive 2001/93/EC states that pigs must have permanent access to a sufficient quantity of material to enable proper investigation and manipulation activities. This directive requires further interpretation. In order to facilitate the further implementation of the directive into national,...

  15. Expert judgement on enrichment materials for pigs validates preliminary RICHPIG model

    Contributor(s):: Bracke, M. B. M., Zonderland, J. J., Bleumer, E. J. B.

    EC directive 2001/93/EC states that pigs must have permanent access to a sufficient quantity of material to enable proper investigation and manipulation activities. This directive requires further interpretation. In order to facilitate the further implementation of the directive into national,...

  16. Long-stemmed straw as an additional nesting material in modified Schmid pens in a commercial breeding unit: effects on sow behaviour, and on piglet mortality and growth

    Contributor(s):: Damm, B. I., Pedersen, L. J., Heiskanen, T., Nielsen, N. P.

    The aim of this study was to determine whether provision of nest materials in a form and amount that could be handled in a commercial Danish pig farm with modified Schmid pens would affect the environment for sows and piglets to an extent that could be detected in sow behaviour and parameters...

  17. Size, design and interspecific interactions as restrictors of natural behaviour in multi-species exhibits. 1. Activity and intraspecific interactions of Plains zebra ( Equus burchelli )

    Contributor(s):: Andersen, K. F.

    Three herds of Plains zebras in multi-species pounds in 3 Danish zoos were studied during spring/summer of 1989. Pounds varied greatly in size: Copenhagen Zoo - 0.5 ha, grassless; Loveparken Zoo Givskud - 5 ha, short grass; Knuthenborg Safari Park - 18 ha, long grass. A 10 min scan of activity,...

  18. A comparison between leg problems in Danish and Swedish broiler production

    Contributor(s):: Sanotra, G. S., Berg, C., Lund, J. D.

    In Denmark and Sweden, surveys were undertaken to estimate the prevalence of leg problems in conventional broiler production. The Danish survey included 28 Ross 208 flocks, and the Swedish survey included 15 Ross 208 and 16 Cobb flocks. Leg problems included reduced walking ability (gait), tibial...

  19. Assessing animal welfare in a strictly synchronous production system: the mink case

    Contributor(s):: Moller, S. H., Hansen, S. W., Sorensen, J. T.

    Most on-farm welfare assessment systems have been developed for use in dairy and pig farms. These production systems are non-synchronous, in the sense that the same processes occur continuously throughout the year. Animal welfare during most or all phases of production may therefore be assessed...

  20. Developing a welfare assessment system for use in commercial organic egg production

    Contributor(s):: Hegelund, L., Sorensen, J. T., Johansen, N. F.

    A welfare assessment system is being developed for commercial organic egg production based on indicators of behaviour, health, system, and management, which is the general Danish Institute for Agricultural Science (DIAS) concept for assessing animal welfare at farm level. The welfare assessment...