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  1. Effects of qualitative feed restriction in broiler breeder pullets on behaviour in the home environment

    Contributor(s):: Riber, Anja B., Tahamtani, Fernanda M., Steenfeldt, Sanna

    2021Applied Animal Behaviour Science2351052250168-159110.1016/j.applanim.2021.105225text

  2. Motivation for feeding in broiler breeder pullets fed different types of restricted high-fibre diets

    Contributor(s):: Riber, Anja B., Tahamtani, Fernanda M.

    High-fibre diets have been suggested as alternative feeding strategies that potentially may alleviate the hunger felt by feed-restricted broiler breeders and fulfil their behavioural need for feeding behaviour. The aim of the present study was to investigate the effects of four dietary...

  3. The effect of qualitative feed restriction in broiler breeder pullets on fear and motivation to explore

    Contributor(s):: Tahamtani, Fernanda M., Riber, Anja B.

    Restrictively fed broiler breeders are known to have increased motivation to explore and reduced fearfulness because hunger increases the motivation to search for and to acquire food, forcing the birds to face and engage with aversive stimuli that they would otherwise avoid. The aim of this study...

  4. Quantifying hungry broiler breeder dietary preferences using a closed economy T-maze task

    Contributor(s):: Buckley, Louise A., Sandilands, Victoria, Tolkamp, Bert J., D’Eath, Richard B.

    This study aimed to identify hungry broiler breeders (n=12) preferences for quantitative (control) or qualitative dietary restriction (QDR) in a closed economy environment. The QDR option was either 3g calcium propionate/kg total feed (n=6) or 300g oat hulls/kg total feed (n=6). Quantitatively...

  5. Feed restriction and tubes for environmental enrichment in growing mink—Consequences for behaviour and welfare

    Contributor(s):: Hansen, Steffen Werner, Møller, Steen Henrik, Damgaard, Birthe Marie

    This experiment compared the behaviour of mink during two different feeding routines; slightly restrictive (‘food free period’ of 6h) or standard (‘food free period’ of 2h), respectively, and the mink's use of two different types of occupational material; an attached tube made of wire mesh and a...

  6. Effects of food quantity and distribution on aggressive behaviour of gilthead seabream and European seabass

    Contributor(s):: Oikonomidou, Eleni, Batzina, Alkisti, Karakatsouli, Nafsika

    In intensive aquaculture, aggression among fish creates a disturbed social environment and leads to serious implications. Food is a resource of great importance for fish and its acquisition is an important enough reason for increased competition. Gilthead seabream Sparus aurata and European...

  7. Effect of feed allowance at pasture on the lying behaviour of dairy cows

    Contributor(s):: O’Driscoll, Keelin, Lewis, Eva, Kennedy, Emer

    In temperate climates where cows are primarily managed at pasture shortages of grass could result in nutritional deficits for the cow and may have a variety of behavioural consequences. Lying behaviour is one of the most researched aspects of dairy cow behaviour, and can provide insights into cow...

  8. The effect of alternative feeding strategies during rearing on the behaviour of broiler breeder pullets

    Contributor(s):: Arrazola, Aitor, Mosco, Elyse, Widowski, Tina M., Guerin, Michele T., Kiarie, Elijah G., Torrey, Stephanie

    Broiler breeders are feed-restricted during rearing to avoid the negative consequences of obesity during lay due to their genetic potential for fast growth rate. Feed restriction leads to chronic hunger, frustration and lack of satiety as indicated by hyperactivity, restlessness and...

  9. Influence of mild feed restriction and mild reduction in dietary amino acid content on feeding behaviour of group-housed growing pigs

    Contributor(s):: Carcò, Giuseppe, Dalla Bona, Mirco, Carraro, Luca, Latorre, Maria Angeles, Fondevila, Manuel, Gallo, Luigi, Schiavon, Stefano

    This study investigates changes in the feeding behaviour of pigs as a result of a restriction in their feed allowance and a reduction in dietary indispensable amino acid (AA) content. Ninety-six Topig Talent x PIC barrows were housed in 8 pens and individually fed either ad libitum (AL) or a...

  10. Protocol for expert report on animal welfare in case of companion animal cruelty suspicion

    Contributor(s):: Hammerschmidt, J., Molento, C. F. M.

    Animal welfare expert reports may support court decisions when animal abuse or maltreatment is suspected. The objective of this work is to adapt animal welfare assessment protocols to identify companion animal abuse. The proposed protocol includes four indicator categories: nutritional, comfort,...

  11. Intersucking in dairy cattle - review and questionnaire. (Special Issue: Behaviour and welfare of cattle)

    Contributor(s):: Lidfors, L., Isberg, L.

    Intersucking is an abnormal behaviour in dairy heifers and cows, and it is defined by one animal sucking the teat of another animal with the intention of sucking milk. The aim of this paper is to review earlier studies on intersucking in dairy cattle and to present results from a questionnaire...

  12. Behavioural and adrenocortical responses of dairy cows toward novel food: effects of food deprivation, milking frequency and energy density in the daily ration

    Contributor(s):: Herskin, M. S., Munksgaard, L., Kristensen, A. M.

    Effects of metabolic load and 12 h of food deprivation on the behavioural and physiological responses toward novel food were examined in dairy cows provided with 4 kg of carrots as novel food and observed using video for the initial 10 min. In Experiment I, effects of 12 h of food deprivation...

  13. The effect of level of feeding on water turnover in growing pigs

    Contributor(s):: Yang, T. S., Price, M. A., Aherne, F. X.

    Water turnover was measured by tritium dilution in 3 groups of 8 growing pigs receiving different amounts of the same diet for 9 weeks. Control pigs (ration R1) were fed 47 g/kg bodyweight initially (about 10 weeks of age, 27.8 kg liveweight), gradually reducing to 34 g/kg at the end of the...

  14. The development of aggressive behavior in male broiler chicks: a comparison with laying-type males and the effect of feed restriction

    Contributor(s):: Mench, J. A.

    Experiments were designed firstly to investigate whether selection for growth has modulated the development of aggressive behaviour in male broiler chicks, and secondly to determine the influence of feed restriction on aggression. In the first experiment, broiler males were compared with males...

  15. Feeding pigs: divergence of behavioural and physiological requirements

    Contributor(s):: Lawrence, A. B., Appleby, M. C., Macleod, H. A.

    In experiments in which hunger in Large WhitexLandrace boars was measured by conditioning them to press a panel to receive 7-g rewards of food, it was concluded that restricting pigs to low food allowances results in a high level of hunger throughout the day. It is suggested that commercial food...