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All Categories (21-40 of 68)

  1. Effects of lamb rearing conditions on aggression and dominance relationships

    Contributor(s):: Zito, C. A., Wilson, L. L., Graves, H. B.

  2. Equine behaviour: I. A review of the literature on social and dam-foal behaviour. II. A review of the literature on feeding, eliminative and resting behaviour

    Contributor(s):: Carson, K., Wood-Gush, D. G. M.

  3. Ethogram of agonistic behaviour for Thoroughbred horses

    Contributor(s):: Arnold, G. W., Grassia, A.

  4. Fowl sociometry: social discrimination and the behaviour of domestic hens during food competition

    Contributor(s):: Syme, G. J., Syme, L. A., Barnes, D. R.

  5. Headshaking in fowls: the effect of environmental stimuli

    Contributor(s):: Hughes, B. O.

    The incidence of headshaking in domestic fowls is influenced by both social and environmental factors; it was more frequent in larger groups and in subordinate birds, and it could be greatly increased by exposure to disturbing stimuli. The findings are not readily explained by earlier suggestions...

  6. How peck orders of chickens are measured: a critical review

    Contributor(s):: Rushen, J.

  7. Inhibition of agonistic acts between domestic hens by a dominant third party

    Contributor(s):: Ylander, D. M., Craig, J. V.

    In a study of the inhibitory effects of adult males and of dominant females on frequency of agonistic acts between pairs of feeding hens, three flocks were used in each of two experiments. When a cock was in their immediate presence, hens had only 5 peck-avoidances in 24 10-minute trials; when he...

  8. Interfacing genetics, behavior and husbandry in White Leghorns presented with E. coli challenge

    Contributor(s):: Mauldin, J. M., Siegel, P. B., Gross, W. B.

    Female fowls from the 3rd and 4th generations of lines which had undergone selection for persistence and non-persistence of antibody production to sheep erythrocytes were reared as floor flocks to 134 or 242 days of age, and were then reared singly in cages. At 295 or 394 days of age, females...

  9. Mating behavior of cockerels: effects of social status, group size and group density

    Contributor(s):: Kratzer, D. D., Craig, J. V.

  10. Observations and experiments on social behaviour in a herd of cattle during an 11-year period

    Contributor(s):: Sambraus, H. H.

  11. Observations on group mating of bulls at pasture

    Contributor(s):: Blockey, M. A. de B.

    Five experiments were carried out on the socio-sexual behaviour of beef bulls mated as a group to a herd of cows: (1) to predict the social dominance order in grouped bulls, (2) to investigate by computer simulation the group sizes needed to estimate accurately social dominance order, (3) to...

  12. Patterns and frequency of social interactions in young grazing bulls and steers

    Contributor(s):: Hinch, G. N., Lynch, J. J., Thwaites, C. J.

    Two herds of Hereford cattle, each containing bulls and steers, were observed at ages between 10 and 18 months. Bulls showed higher frequencies of all interactions except grooming and running, but the differences between bulls and steers were significant only at ages greater than 14 months. A...

  13. Position in the peck order and response to human threat in domestic fowl

    Contributor(s):: Syme, L. A., Syme, G. J.

    Three groups of 8 domestic fowl (two all male, and one all female) were subjected to repeated physical threat by a human in group and individual conditions. The last bird to retreat in the group-testing (longest latency for individual measures) and the first (shortest latency) to approach after...

  14. Relation of social dominance and body size to intake of supplements in grazing sheep

    Contributor(s):: Lobato, J. F. P., Beilharz, R. G.

  15. Relationship between production factors and dominance in White Leghorn hens in a study on social rank and cage design

    Contributor(s):: Cunningham, D. L., Tienhoven, A. van

    The effects of social rank and cage shape on feeding frequency, weight gain, production rate, egg size, shell strength and overt aggressive activity were determined for layers housed 6 per cage in deep and shallow cages. Social rank significantly affected feeding frequency, production rate, egg...

  16. Resting habits of zebu cattle in a nocturnal enclosure

    Contributor(s):: Reinhardt, V., Mutiso, F. M., Reinhardt, A.

  17. Social and spatial organization of male behaviour in mated domestic fowl

    Contributor(s):: Pamment, P., Foenander, F., McBride, G.

    Observations were made of male spacing, mating and agonistic behaviour in 2 pens of mated domestic fowl. In both pens, site attachment was found, with a bunching of observations for cocks living close to a wall. High-ranking males appeared to move over smaller areas than did low-ranking males. A...

  18. Social behaviour and adrenal cortical activity in heifers

    Contributor(s):: Adeyemo, O., Heath, E.

    Heifers of the German Brown Swiss, Holstein and White Fulani cattle were observed before, during and after a training. Individual and social behaviour were observed while the animals were under free housing in the pen, grazing in the paddock and while filing through the crush and the passage...

  19. Social behaviour and social bonds between juvenile and sub-adult Bos indicus calves

    Contributor(s):: Reinhardt, V., Reinhardt, A.

  20. Social behaviour and social relationships between female and male prepubertal bovine calves (Bos indicus)

    Contributor(s):: Reinhardt, V., Mutiso, F. M., Reinhardt, A.