Rat

Psychological stress enhances noradrenaline turnover in specific brain regions in rats

Exposure [visual, auditory and olfactory] to stressed conspecifics was accompanied by an increase in cortisol levels.

Year Published: 1982Animal Type: Rat, Rodent

Citation: Iimori, K., Tanka, M., Kohno, Y. 1982. Psychological stress enhances noradrenaline turnover in specific brain regions in rats. Pharmacology Biochemistry and Behavior 16, 637-640.

Sound and its significance for laboratory animals

Several methods of varying accuracy have been used to assess what sounds small laboratory animals such as rodents are capable of hearing. Most rodents can detect sounds from 1000 Hz (the frequency of the Greenwich Time Signal) up to 100000...

Year Published: 1982Animal Type: Chinchilla, Gerbil, Guinea Pig, Hamster, Mole Rat, Mouse, Other Rodent, Rat, Rodent

Citation: Gamble, M. R. 1982. Sound and its significance for laboratory animals. Biological Reviews 57, 395-421.

Effects of housing and chronic cannulation on plasma ACTH and corticosterone in the rat

Housing rats in groups seems to be less stressful for the animals than housing them alone.

Year Published: 1983Animal Type: Rat, Rodent

Citation: Fagin, K. D., Shinsako, J., Dallman, M. F. 1983. Effects of housing and chronic cannulation on plasma ACTH and corticosterone in the rat. American Journal of Physiology 245, E515-E520.

Behavioral induced heart rate reactivity and atherosclerosis in cynomolgus monkeys

The presence of the experimenter [without glove!] dramatically increased heart rate in about 50% of animals studied.

Year Published: 1983Animal Type: Rat, Rodent

Citation: Manuck, S. B., Kaplan, J. R., Clarkson, T. B. 1983. Behavioral induced heart rate reactivity and atherosclerosis in cynomolgus monkeys. Psychosomatic Medicine 45, 95-108.

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 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.

Group or singly housed rats? In: Standards in Laboratory Animal Management

From the available data it is concluded that housing rats singly affects survival. In both sexes singly housed animals showed a markedly lower survival rate than group-housed animals. This effect became apparent when the animals reached the age of about...

Year Published: 1984Animal Type: Rat, Rodent

Citation: Shaw, D. C. , Gallagher, R. H. 1984. Group or singly housed rats? In: Standards in Laboratory Animal Management. The Universities Federation for Animal Welfare 65-70. The Universities Federation for Animal Welfare, Potters Bar, UK.

Corticosterone and prolactin response to repeated handling and transfer of male rats

Rats did adapt to repeated gentle handling but not to repeated cage transfers as reflected in consistenly elevated corticosterone and prolactin levels.

Year Published: 1984Animal Type: Rat, Rodent

Citation: Dobrakovava, J., Jurcovicova, J. 1984. Corticosterone and prolactin response to repeated handling and transfer of male rats. Experimental Clinical Endocrinology 5, 21-27.

Environmental factors in relation to the comfort and well-being of laboratory rats and mice

Of all the commonly considered environmental factors, light intensity within cages is probably the most variable.

Year Published: 1984Animal Type: Mouse, Rat, Rodent

Citation: Clough, G. 1984. Environmental factors in relation to the comfort and well-being of laboratory rats and mice. In: Standards in Laboratory Animal Management . The Universities Federation for Animal Welfare (ed), 7-23. The Universities Federation for Animal Welfare, Potters Bar, UK.