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  1. Mother-young behaviours at lambing in grazing ewes: effects of lamb sex and food restriction in pregnancy

    Contributor(s):: Freitas-De-Melo, A., Ungerfeld, R., Hotzel, M. J., Abud, M. J., Alvarez-Oxiley, A., Orihuela, A., Damian, J. P., Perez-Clariget, R.

    This study investigated whether the level of pasture allowance from before conception until late pregnancy affects ewe-lamb behaviours at birth, and if those behaviours differ according to the sex of the lambs. We performed two experiments, in which 96 ewes were assigned to one of two nutritional...

  2. Impact of rapid treatment of sheep lame with footrot on welfare and economics and farmer attitudes to lameness in sheep

    Contributor(s):: Green, L. E., Kaler, J., Wassink, G. J., King, E. M., Thomas, R. G.

  3. Reducing mother-young separation distress by inducing ewes into oestrus at the day of weaning

    Contributor(s):: Perez-Leon, I., Orihuela, A., Lidfors, L., Aguirre, V.

  4. Social transmission of physiological and behavioural responses to castration in suckling Merino lambs

    Contributor(s):: Colditz, I. G., Paull, D. R., Lee, C.

  5. Temporal association between food distribution and human caregiver presence and the development of affinity to humans in lambs

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

    The presence of the caregiver around feeding favors the development of a human-animal relationship. To understand the underlying mechanism, we tested various temporal associations between food distribution and human presence: from an early age, a person was repeatedly present for 2 min just...

  6. 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...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  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. The effect of a gradual separation from the mother on later behavioral, immune and endocrine alterations in artificially reared lambs

    Contributor(s):: Sevi, A., Caroprese, M., Annicchiarico, G., Albenzio, M., Taibi, L., Muscio, A.

    The aim of the experiment was to compare the welfare and weight gains of artificially reared lambs when gradually separated from their mothers or separated from them early and immediately or gradually moved from maternal to reconstituted milk. Forty Comisana lambs were assigned to a control...

  18. Effects of mulesing and alternative procedures to mulesing on the behaviour and physiology of lambs

    Contributor(s):: Hemsworth, P. H., Barnett, J. L., Karlen, G. M., Fisher, A. D., Butler, K. L., Arnold, N. A.

    Mulesing involves the surgical removal of skin adjacent to the perineum and tail without anaesthesia or analgesia in lambs. This procedure was developed to reduce the risk of flystrike (cutaneous myiasis) around the perineum. Alternative interventions to mulesing have historically been...

  19. Effects of sex, litter size and periconceptional ewe nutrition on the ewe-lamb bond

    Contributor(s):: Hernandez, C. E., Matthews, L. R., Oliver, M. H., Bloomfield, F. H., Harding, J. E.

    Undernutrition restricted to the time around conception in sheep alters endocrine and metabolic responses in the offspring. Studies in rats suggest that such an early insult can also alter the behaviour of the offspring. We studied the effects of mild maternal periconceptional undernutrition...

  20. Nutritional context influences preferences of lambs for foods with plant secondary metabolites

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

    An herbivore's nutritional state while foraging may affect its preferences for a chemically defended plant. Increased preference or avoidance of diets with different plant secondary metabolites (PSM) may influence foraging in ways that cannot be predicted solely by the isolated effect of a PSM....