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  1. Social hierarchy in the domestic goat: effect on food habits and production

    Contributor(s):: Barroso, F. G., Alados, C. L., Boza, J.

    The main objective of this paper is to determine if there is a stable hierarchy of dominance in a flock of goats fed in pasture, and if this hierarchy influences somehow the diet selected in the pasture and in its production of milk and meat. The study was carried out in a flock of goats (n=90)...

  2. Suckling and allosuckling in river buffalo calves and its relation with weight gain

    Contributor(s):: Costa, M. J. R. P. da, Andriolo, A., Oliveira, J. F. S. de, Schmidek, W. R.

    The aim of this study was to investigate if river buffalo calves (Bubalus bubalis) have equal access to all cows and if milk is thus equally available to all of them. Suckling/allosuckling behaviour and weight gain (WG) of 29 calves (14 males and 15 females) was recorded with special...

  3. The characterisation of suckling in wild boar

    Contributor(s):: Horrell, I.

    Suckling was observed over a total of 5 lactations in two wild boar (Sus scrofa L.) sows in semi-natural enclosures. 61 suckling periods were recorded at 4 stages post-partum: 12-48 h, 6-8 days, 2-4 weeks, and 6-7 weeks. In contrast to a previous account, it was found that the detailed...

  4. The effect of different degrees of 'positive' human-animal interaction during rearing on the welfare and subsequent production of commercial dairy heifers

    Contributor(s):: Bertenshaw, C., Rowlinson, P., Edge, H., Douglas, S., Shiel, R.

    A 3-year study tested the hypotheses that brushing each heifer for 5 min per week in the weeks preceding calving (long term positive treatment: PT) while the heifers were unrestrained, is sufficient to improve subsequent parlour behaviour and production, and this could be influenced by the extent...

  5. The effect of irregular feeding times on the behaviour and growth of dairy calves

    Contributor(s):: Johannesson, T., Ladewig, J.

    The objective of this study was to examine the effects of predictable vs. unpredictable management routines on the behaviour, production and health of dairy calves. Three different feeding schedules for milk-fed dairy calves (Holstein-Friesian) were compared. All calves received milk twice a day,...

  6. The effect of milk flow rate and milk allowance on feeding related behaviour in dairy calves fed by computer controlled milk feeders

    Contributor(s):: Jensen, M. B., Holm, L.

    The aim of this study was to investigate the effect of milk flow rate and milk allowance on calves' use of a computer controlled milk feeder. Six blocks, each consisting of 16 calves, were used (Holstein-Friesian, Danish Red, and Jersey). Within each block, the calves were assigned to one of four...

  7. The effects of feeding method, milk allowance and social factors on milk feeding behaviour and cross-sucking in group housed dairy calves. (Special Issue: Behaviour and welfare of cattle)

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

    Cross-sucking is non-nutritive sucking of another calf's body. This detrimental behaviour is seen in artificially reared calves, but never in calves reared by the dam. The behaviour stems from a redirection of the natural sucking behaviour. Studies of calves fed milk in buckets have shown that...

  8. The effects of social exchange between two groups of lactating primiparous heifers on milk production, dominance order, behavior and adrenocortical response

    Contributor(s):: Hasegawa, N., Nishiwaki, A., Sugawara, K., Ito, I.

    The effects of social hierarchy disturbance by management practice on behaviour and performance of lactating Holstein heifers in a dairy herd in Japan were investigated from 15 October to 10 November 1990. Two groups of 51 primiparous heifers in mid-lactation were used. Almost 50% of the heifers...

  9. Training dogs on a scent platform for oestrus detection in cows

    Contributor(s):: Fischer-Tenhagen, C., Wetterholm, L., Tenhagen, B. A., Heuwieser, W.

    Dogs can be trained for various odour detection tasks, and have been used to search for explosives, drugs or cancer biomarkers. However, there are only a few studies that have attempted to train dogs for oestrus detection using vaginal fluid, milk or urine of cows. In this study, seven dogs were...

  10. An ethicist's commentary on the case of a client ignoring organic standards

    Contributor(s):: Rollin, B. E.

  11. An ethicist's commentary on the case of determining withdrawal time for off-label drug usage in sheep

    Contributor(s):: Rollin, B. E.

  12. An ethicist's commentary on the case of the farmer advised by "experts"

    Contributor(s):: Rollin, B. E.

  13. An ethicist's commentary on the raw milk case

    Contributor(s):: Rollin, B. E.

  14. Public-health aspects of salmonella infection

    Full-text: Available

    | Contributor(s):: A. Wray (editor), C. Wray (editor), Tom Humphrey

    Gaffky is credited with being the first to culture the causative agent of typhoid (S. typhi) in 1884. At that time, it was also known that bacteria similar to S. typhi could cause enteric disease in humans and farm animals. This was confirmed when Salmon and Smith reported the isolation of the...

  15. Effect of human-animal relationship and management on udder health in Swiss dairy herds

    | Contributor(s):: Ivemeyer, S., Knierim, U., Waiblinger, S.

    In a cross-sectional study, we investigated the effects of human-animal interactions and management factors on udder health in 46 Swiss dairy herds living in loose-housing systems on farms that participated in the Swiss dairy farm network "pro-Q." The human-animal relationship was measured by...

  16. Intensity of oestrus signalling is the most relevant indicator for animal well-being in high-producing dairy cows

    | Contributor(s):: Garcia, E., Hultgren, J., Fallman, P., Geust, J., Algers, B., Stilwell, G., Gunnarsson, S., Rodriguez-Martinez, H.

    Full signalling of oestrous behaviour is vital for proper timing of AI and good reproductive performance, currently jeopardized by shorter observations of oestrus behaviour. Alternative indicators including progesterone (P4) recordings on-farm are tested. Oestrous intensity of 37 heifers (H) and...

  17. An aversive milker causes fear, but does not influence milk yield of Holstein cows

    | Contributor(s):: Hotzel, M. J., Machado Filho, L. C. P., Yunes, M. C., Silveira, M. C. A. C. da

    In the present study, the hypothesis that fear of humans is long-lasting and may influence milk production in Holstein-Friesian cows was tested. One person (the aversive handler) carried out two daily sessions of an aversive treatment during 21 days, where each cow received two slaps on the rump...

  18. Assessment of animal welfare in 80 dairy cow herds in cubicle housing # animal health and other animal-related parameters

    | Contributor(s):: Rouha-Mulleder, C., Palme, R., Waiblinger, S.

    Introduction: With growing concerns about farm animal welfare (e.g. by consumers; WILDNER, 1998), knowledge about the actual situation with regard to animal welfare on farms is important. Valid assessment of animal welfare requires the use of animal-based parameters, while environmental...

  19. Welfare and fertility in dairy cattle

    | Contributor(s):: Ciommo, F. di, Parmigiani, E.

    Dairy cattle welfare is recently gaining importance. There are several aspects influencing welfare: barn facilities and environment, food and beverage quality and quantity, animal vs. animal and animal vs. human relationship and herd management. It is very important to improve the conditions...

  20. Investigation of a man-machine-animal system using a mathematical modelling method. (A conceptual model of a man-machine-animal system. Modelling animal behaviour)

    | Contributor(s):: Shepel, V.

    The use of mathematical modelling and the development of a "man-machine-animal" system to define the factors involved in dairy farming that may have an influence on the milk yields of dairy cows is described. The conceptual model used to describe the dairy farm is first outlined. This takes into...