Publications

Rest in poultry

Hens often use high perches in preference to low perches, when offered a choice.

Year Published: 1984Animal Type: Bird, Chicken

Citation: Blokhuis, H. J. 1984. Rest in poultry. Applied Animal Behaviour Science 12, 289-303.

Some observations on the development of feather pecking in poultry

Feather pecking occurs much more often when chicken are kept on wire floor rather then litter which allows the hens to peck up additional food particles. It is argued that feather pecking in the absence of a suitable litter substrate...

Year Published: 1984Topics: Abnormal/Problematic BehaviorAnimal Type: Bird, Chicken

Citation: Blokhuis, H. J., Arkes, J. G. 1984. Some observations on the development of feather pecking in poultry. Applied Animal Behaviour Science 12, 145-157.

Allowing captive primates to forage

A woodchip litter substrate reduces abnormal behaviours, primarily self-aggression, and encourages foraging, even in the absence of grain. Comparison between the bare floor and litter with grain showed that in the latter monkeys foraged more, manipulated the environment less, were...

Year Published: 1984Topics: Environmental Enrichment, Husbandry & Management, Natural BehaviorAnimal Type: Macaque, Nonhuman Primate

Citation: Anderson, J. R. , Chamove, A. S. 1984. Allowing captive primates to forage. In: Standards in Laboratory Animal Management. Proceedings of a Symposium. 253-256. The Universities Federation For Animal Welfare, Potters Bar, UK.

Social housing of rats: Life-span effects on reaction time, exploration, weight, and longevity

Sprague-Dawley rats were housed throughout their lives either in group cages or singly in standard laboratory cages. Locomotor activity was observed at selected ages and, in addition, operant conditioning procedures were used with an extensively trained subset of the animals...

Year Published: 1984Topics: Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Menich SR, Baron A. 1984. Social housing of rats: Life-span effects on reaction time, exploration, weight, and longevity. Exp Aging Res. 10;95-100.

The welfare of confined sows: physiological, behavioral, and production responses to contrasting housing systems and handler attitude

Year Published: 1983Animal Type: Pig

Citation: Barnett, J. L., Cronin, G. M., Hemsworth, P. H. et al. 1983. The welfare of confined sows: physiological, behavioral, and production responses to contrasting housing systems and handler attitude. Annales de Recherche V?t?rinaire 15, 217-226.

The effect of conspecifics on corticoadrenal response of rats to a novel environment

The effect of housing conditions and the presence of a conspecific on corticoadrenal response to a novel environment was studied in male Sprague-Dawley rats. The response to a novel environment was the same in rats housed in groups and rats...

Year Published: 1983Animal Type: Rat, Rodent

Citation: Armario, A., Luna, G., Balasch, J. 1983. The effect of conspecifics on corticoadrenal response of rats to a novel environment. Behavioral Neural Biology 37(2), 332-337.

Corticoadrenal and behavioral response to open field in pairs of male rats either familiar or non-familiar to each other

The effect of the presence either of a familiar or non-familiar conspecific animal on serum corticosterone and some behavioral responses in the open field was studied in male Sprague-Dawley rats. Animals tested in presence of a familiar animal showed a...

Year Published: 1983Animal Type: Rat, Rodent

Citation: Armario, A., Ortiz, R., Balasch, J. 1983. Corticoadrenal and behavioral response to open field in pairs of male rats either familiar or non-familiar to each other. Experientia 39(11), 1316-1317.

Ethical guidelines for investigations of experimental pain in conscious animals

Investigators ... should accept a general attitude in which the animal is regarded not as an object for exploitation, but as a living individual [p. 109].

Year Published: 1983Topics: Emotion, Pain, & Sentience, Regulations & Ethical ReviewAnimal Type: All/General

Citation: Zimmermann, M. 1983. Ethical guidelines for investigations of experimental pain in conscious animals. Pain 16, 109-110.

Influence of age, sex, and caging on joint mobility in the patas monkey

Living in small cages lead to the development of conspicuous changes in joint mobility.

Year Published: 1983Animal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Turnquist, J. 1983. Influence of age, sex, and caging on joint mobility in the patas monkey. American Journal of Physical Anthropology 61, 211-220.

Endocrine changes induced by venipuncture in rhesus monkeys

Animals were accustomed to our venipuncture procedures and often extended a leg from the cage without struggling for sample collection. Blood collection in a transport box resulted in elevated GH and cortisol values. The present data suggest that such responses...

Year Published: 1984Animal Type: Macaque, Nonhuman Primate

Citation: Herndon, J. G., Turner, J. J., Perachio, A. A. et al. 1984. Endocrine changes induced by venipuncture in rhesus monkeys. Physiology and Behavior 32, 673-676.