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  1. A note on the use of odor manipulation to facilitate the adoption of alien lambs by ewes bearing twins

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

    Adoption of alien lambs by ewes bearing single natural offspring has been facilitated by the use of artificial odorants such as neatsfoot oil to establish a common odour for own and alien young and by the use of cloth stockinette jackets to exchange natural odours between lambs. The objective of...

  2. Assessment of sociability in farm animals: the use of arena test in lambs

    Contributor(s):: Ligout, S., Foulquie, D., Sebe, F., Bouix, J., Boissy, A.

    The present study aimed to evaluate an experimental approach to individually assess social reactivity among sheep. INRA401 male lambs (n=163) were reared together outdoors as part of a larger flock. Fifteen days after weaning the animals were individually exposed to an arena test of 2 phases (1 -...

  3. Behaviour of growing lambs housed on straw or woodchip bedding materials and their preference for floor type

    Contributor(s):: Wolf, B. T., Molloy, H. R. B., Trayte, M. J., Rose, M. T.

    Straw is widely used as a bedding material for housed sheep, but alternatives are needed in regions where straw is expensive or in short supply. The aim of this work was to compare time budgets, growth and food intake of growing, finishing lambs housed on either woodchip or straw bedding...

  4. Breed differences in the expression of maternal care at parturition persist throughout the lactation period in sheep

    Contributor(s):: Pickup, H. E., Dwyer, C. M.

    Maternal care plays an important role in the survival of offspring in mammals. In the ewe initial maternal care is expressed by nurturing the young and formation of an exclusive olfactory bond with the lamb. After the neonatal period, maternal care is associated with co-operation with sucking...

  5. Comparison of the behaviour of Awassi lambs in cafeteria feeding system with single diet feeding system

    Contributor(s):: Keskin, M., Sahin, A., Bicer, O., Gul, S.

    This study was carried out to compare behavioural activities of Awassi lambs in cafeteria feeding system with conventional feeding (control) that animals fed concentrate. Sixteen, 3-month-old male lambs were housed individually for 42 days. The main effect was on the feeding systems, cafeteria...

  6. Discriminating among novel foods: effects of energy provision on preferences of lambs for poor-quality foods

    Contributor(s):: Villalba, J. J., Provenza, F. D.

    A study was conducted to better understand how lambs discriminate among novel foods based on flavour and post-ingestive effects. The manner in which temporal sequence of food ingestion and post-ingestive feedback affected preference when lambs were fed flavoured wheat straw (a poorly nutritious...

  7. Effect of gradual transition from maternal to reconstituted milk on behavioural, endocrine and immune responses of lambs

    Contributor(s):: Sevi, A., Napolitano, F., Casamassima, D., Annicchiarico, G., Quarantelli, T., Paola, R. de

    18-24 h after parturition, 20 Comisana lambs were separated from their dams and were subsequently offered a commercial milk substitute (Sub) or were subjected to a gradual transition from maternal to reconstituted milk over 10 days (Mix). Lambs had free access to milk for 3 h a day. A further 10...

  8. Effects of an oral dose of acetyl salicylate at tail docking on the behaviour of lambs aged three to six weeks

    Contributor(s):: Pollard, J. C., Roos, V., Littlejohn, R. P.

    To investigate a practical method of providing analgesia for docking of lambs' tails, the effectiveness of an oral dose of aspirin (acetyl salicylate) in reducing discomfort behaviour immediately following application of elastrator rings, was evaluated. The study, conducted in New Zealand,...

  9. Effects of food structure and nutritional quality and animal nutritional state on intake behaviour and food preferences of sheep

    Contributor(s):: Villalba, J. J., Provenza, F. D.

    There is evidence of the independent effects of plant physical and chemical characteristics on foraging, but little has been done to determine how these traits interact to affect food selection. The effect of the nutritional state of lambs on intake behaviour and preference for feeds with...

  10. 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...

  11. How does the method used to feed lambs modulate their affinity to their human caregiver?

    Contributor(s):: Tallet, C., Veissier, I., Boivin, X.

    Feeding young mammals is often used as a way to increase their affinity to their human caregiver. However, feeding is not always necessary, which raises questions as to the feeding method used (bottle, bucket) and to the importance of contacts surrounding feeding compared to an absence of human...

  12. Importance of alternative foods on the persistence of flavor aversions: implications for applied flavor avoidance learning

    Contributor(s):: Kimball, B. A., Provenza, F. D., Burritt, E. A.

    We added a novel flavour, citric acid (CA), to a familiar test diet and conditioned an aversion in lambs to the flavored diet using lithium chloride. In 1 h feeding trials, we examined the roles of a novel flavour cue, choice and nutritional quality of alternatives on the persistence of an...

  13. Influence of maternal undernutrition on the behaviour of juvenile lambs

    Contributor(s):: Simitzis, P. E., Charismiadou, M. A., Kotsampasi, B., Papadomichelakis, G., Christopoulou, E. P., Papavlasopoulou, E. K., Deligeorgis, S. G.

    The objective of the present experiment was to determine the implications of prenatal undernutrition on the behaviour of juvenile lambs. Dams of one group (C) were fed 100% of the recommended requirements throughout pregnancy, while those of two other groups were fed 50% of the control nutrient...

  14. Lambs fed protein or energy imbalanced diets forage in locations and on foods that rectify imbalances

    Contributor(s):: Scott, L. L., Provenza, F. D.

    Ruminants eat a variety of foods from different locations in the environment. While water, cover, social interactions, and predators are all likely to influence choice of foraging location, differences in macronutrient content among forages may also cause ruminants to forage in different...

  15. Overcoming food neophobia in domestic ruminants through addition of a familiar flavor and repeated exposure to novel foods

    Contributor(s):: Launchbaugh, K. L., Provenza, F. D., Werkmeister, M. J.

    Food neophobia, observed as a decreased intake of novel foods, can cause significant livestock production losses. In the transition from rangeland to feedlot, livestock are usually offered novel diets that they sample cautiously, gradually increasing intake. This familiarization period can slow...

  16. Postingestive feedback from starch influences the ingestive behaviour of sheep consuming wheat straw

    Contributor(s):: Villalba, J. J., Provenza, F. D.

    Plant species present a complex array of biochemicals to herbivores that in conjunction with a plant's physical structure influence intake. The role of postingestive feedback from macronutrients on the ingestion of a low-quality forage by sheep was investigated. The ingestive behaviour of 2...

  17. Separation distress in artificially-reared lambs depends on human presence and the number of conspecifics

    Contributor(s):: Rault, J. L., Boissy, A., Boivin, X.

    The way animals perceive partners, including humans, is yet relatively unknown. Research has shown that humans can provide social support or act as social substitute for domestic animals. Nonetheless, studies investigating the perception of humans by domestic animals in their social environment,...

  18. Sexual performance of twin ram lambs and the effect of number and sex of contemporary siblings

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

    The objectives of this investigation were to determine the degree of correspondence in the sexual performance of twin male sheep and to compare the sexual performance of ram lambs born co-twin to another male (M-M), co-twin to a female (M-F) and as single (S) offspring. Individual ram lambs (n =...

  19. Sheep lose balance, slip and fall less when loosely packed in transit where they stand close to but not touching their neighbours

    Contributor(s):: Jones, T. A., Waitt, C., Dawkins, M. S.

    There are two opposing views about the space required for sheep in transit. One is that they should be transported at low space (high stocking density) and avoid slipping or falling by bracing themselves against each other. The other is that they should be transported at high space (low stocking...

  20. Social discrimination in lambs: persistence and scope

    Contributor(s):: Ligout, S., Porter, R. H., Bon, R.

    Social recognition among familiar unrelated lambs was assessed in a series of tests. Lambs (12 pairs of twins) and their mothers were housed together in small groups for 1 week (Original groups; O) then reorganized into new groupings (Recent-groups; R) for the remainder of the experiment. During...