Publications

Behaviour of dairy cows kept in extensive (loose housing/pasture) or intensive (tie stall) environments

Twelve dairy cows were placed in a stimuli-rich environment, a 'dairy cow park', for 2.5 years. .. During summer the cows spent 17.2 h outdoors each day, mostly at pasture. .. During summer, the cows walked 2.5 km daily and...

Year Published: 1992Animal Type: Cattle

Citation: Krohn, C. C., Munksgaard, L., Jonasen, B. 1992. Behaviour of dairy cows kept in extensive (loose housing/pasture) or intensive (tie stall) environments. I. Experimental procedure, facilities, time budgets - diurnal and seasonal conditions. Applied Animal Behaviour Science 34, 37-47.

Responses of pair-housed male and female domestic chicks to the removal of a companion

Male and female domestic chicks were housed in same-sex pairs until they were tested at 11 days of age. One chick was then removed from each established pair. .. Social separation induced an overall increase in circulating corticosterone concentrations, thus...

Year Published: 1992Animal Type: Bird, Chicken

Citation: Jones, R. B., Williams, J. B. 1992. Responses of pair-housed male and female domestic chicks to the removal of a companion. Applied Animal Behaviour Science 32, 375-380.

Modification of fear in domestic chicks, Gallus gallus domesticus, via regular handling and early environmental enrichment

Regular gentle handling and environmental enrichment reduced fear responses to people. The implications of reduced fearfulness and other potential benefits of handling and enrichment procedures are discussed.

Year Published: 1992Topics: Environmental Enrichment, HandlingAnimal Type: Bird, Chicken

Citation: Jones, R. B., Waddington, D. 1992. Modification of fear in domestic chicks, Gallus gallus domesticus, via regular handling and early environmental enrichment. Animal Behaviour 43, 1021-1033.

Behaviour of piglets during weaning in a semi-natural enclosure

The findings of the present study generally show that weaning in a semi-natural situation is the result of a gradual process without any dramatic changes to the piglets regarding activity budgets or social relationships.

Year Published: 1992Animal Type: Pig

Citation: Jensen, P., Stangel, G. 1992. Behaviour of piglets during weaning in a semi-natural enclosure. Applied Animal Behaviour Science 33, 227-238.

A comparison of operant responding by farrowing sows for food and nest-building materials

Operant responding for food completely overshadows operant responding for other potential reinforcers both before and after farrowing [because, obviously, food-restricted sows have an extremely high motivation to obtain food]. .. Any potential welfare problems caused by frustration of nest-building behaviour...

Year Published: 1992Animal Type: Pig

Citation: Hutson, G. D. 1992. A comparison of operant responding by farrowing sows for food and nest-building materials. Applied Animal Behaviour Science 34, 221-230.

Correlates of pen size and housing conditions on the behaviour of kennelled dogs

Behavioral data were collected from solitary and group-housed dogs [of different breeds] from animal shelters and laboratories. Solitary dogs were more inactive and spent more time in non-social repetitive locomotory behaviour categories. Dogs housed in pens with spacious, complex outdoor...

Year Published: 1992Animal Type: Dog

Citation: Hubrecht, R. C., Serpell, J. A., Poole, T. B. 1992. Correlates of pen size and housing conditions on the behaviour of kennelled dogs. Applied Animal behaviour Science 34, 365-383.

Peanut puzzle solvers quickly demonstrate aptitude

Only one third of the [single-housed] subjects solved the puzzle.

Year Published: 1992Animal Type: Macaque, Nonhuman Primate

Citation: Heath, S. J., Shimoji, M., Tumanguil, J. et al. 1992. Peanut puzzle solvers quickly demonstrate aptitude. Laboratory Primate Newsletter 31(1), 12-13.

Behavioural enrichment of Adelaide Zoo’s sole male orangutan

Certainly, the results show that his activity levels of foraging [at the probe feeder] and eating are being raised; he is being stimulated to make and use tools, and by the same token, the levels of his unnatural behaviours of...

Year Published: 1992Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Harper, P. 1992. Behavioural enrichment of Adelaide Zoo's sole male orangutan. Australian Primatology 6(4), 2-9.

Laboratory animal science in Italy: Legislation, education, and training programs

Laboratory animal science in Italy: Legislation, education, and training programs.

Year Published: 1992Animal Type: All/General

Citation: Guaitani, A. 1992. Laboratory animal science in Italy: Legislation, education, and training programs. Lab Animal 21(8), 39-43.

Alternative forage types for captive chimpanzees

Chicken scratch, because it is small and harder to find [in the litter], elicited the most foraging of the three foods ['sweet feed', popcorn]. It is very encouraging to see the chimpanzees still foraging late in the day for these...

Year Published: 1992Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Grief, L., Fritz, J., Maki, S. 1992. Alternative forage types for captive chimpanzees. Laboratory Primate Newsletter 31(2), 11-13.