Publications

The effects of regular handling on fear responses in the domestic chick

Regular gentle handling reduces the fear response toward people. Regular handling had no effect on approach towards an inanimate object.

Year Published: 1981Topics: Emotion, Pain, & Sentience, HandlingAnimal Type: Bird, Chicken

Citation: Jones, R. B., Faure, J. M. 1981. The effects of regular handling on fear responses in the domestic chick. Behavioural Processes 6, 135-143.

Tonic immobility ( righting time ) in laying hens housed in cages and pens

The results suggest that caged birds are more fearful than pen-housed ones.

Year Published: 1981Animal Type: Bird, Chicken

Citation: Jones, R. B., Faure, J. M. 1981. Tonic immobility ( righting time ) in laying hens housed in cages and pens. Applied Animal Ethology (Applied Animal Behaviour Science) 7, 369-372.

The influence of handling by humans on the behaviour, growth and corticosteroids in the juvenile female pig

Animals who are fearful of humans show a marked increase in corticosteroid levels both in the presence and in the absence of people. Their growth and reproductive performance is impaired.

Year Published: 1981Animal Type: Pig

Citation: Hemsworth, P. H., Barnett, J. L., Hansen, C. 1981. The influence of handling by humans on the behaviour, growth and corticosteroids in the juvenile female pig. Hormones and Behavior 15, 396-403.

Cortisol responses under different housing conditions in female squirrel monkeys

Plasma levels of cortisol were significantly lower in pair-housed females than in those living in a social group or individually. The increment in cortisol levels after stress (handling and ether anesthesia) also was smaller in females housed in pairs. Dominant...

Year Published: 1982Animal Type: Nonhuman Primate, Squirrel Monkey

Citation: Gonzalez, C. A., Coe, C. L., Levine, S. 1982. Cortisol responses under different housing conditions in female squirrel monkeys. Psychoneuroendocrinology 7, 209-216.

The feasability of improving the captive environments of the pongidae

Attention is focused on the possible association between low fertility in captive great apes and the absence of naturalistic features from captive habitats. ... Improvement of the captive environment is defined as the introduction of greater temporal variability that corresponds...

Year Published: 1982Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Dahl, J. F. 1982. The feasability of improving the captive environments of the pongidae. American Journal of Primatology 19(Supplement ), 77-85.

Conditioned and unconditioned influences on body temperature and ethanol hypothermia in laboratory rats

An increase in body temperature occurred in animals who's individual cages were removed from their usual position. After one hour at the new location body temperature had increased 1.3C. Movement of an entire cage rack, with the cages remaining in...

Year Published: 1982Animal Type: Rat, Rodent

Citation: York, J. L., Regan, S. G. 1982. Conditioned and unconditioned influences on body temperature and ethanol hypothermia in laboratory rats. Pharmacology, Biochemistry and Behavior 17, 119-124.

Behaviour of pigs and the design of a new housing system

Based on ethological observations of free-ranging pigs, a new housing system was designed incorporating features that allow the animals to express a much wider range of species-typical behavior patterns than in the conventional housing systems. Those species-typical behaviors are described.

Year Published: 1982Animal Type: Pig

Citation: Wood-Gush, D. G. M., Stolba, A. 1982. Behaviour of pigs and the design of a new housing system. Applied Animal Ethology (Applied Animal Behaviour Science) 8, 583-584 (Abstract).

Effects of environmental enrichment on old mice

Groups of 3 or 4 male mice were transferred to 45x17x15 cm large caged containing structures to crawl through, marbles, ping pong balls plus 4 sexually receptive females. Subjects were tested when they were 750 days old. The enriched mice...

Year Published: 1982Animal Type: Mouse, Rodent

Citation: Warren, J. M., Zerweck, C., Anthony, A. 1982. Effects of environmental enrichment on old mice. Developmental Psychobiology 15, 13-18.

Heart rate and behaviour of sheep in yards

Social isolation associated with experimental procedures is a stressful experience [increased heart rate, restlessness, vocalization] for sheep.

Year Published: 1982Animal Type: Sheep

Citation: Syme, L. A., Elphick, G. R. 1982. Heart rate and behaviour of sheep in yards. Applied Animal Ethology (Applied Animal Behaviour Science) 9, 31-35.

Reproductive performance in a semi-wild cattle herd (Bos indicus)

Reproductive performance was assessed in a semi-wild Boran cattle herd living on a grassland ranch in Kenya. Male calves copulated with cows a long time after they were weaned naturally. Up to the age of 16 months they were prevented...

Year Published: 1982Animal Type: Cattle

Citation: Reinhardt, V. 1982. Reproductive performance in a semi-wild cattle herd (Bos indicus). Journal of Agricultural Science 98, 567-569.