Rat

Fecal corticoid metabolites in aged male and female rats after husbandry-related disturbances in the colony room

Over a 3-h period, 10 male and 10 female Fischer 344 rats (age, 82 wk) were exposed to a series of events that can occur in a colony housing room (keys jingling, cage lids opening, alteration of the light cycle)....

Year Published: 2006Animal Type: Rat, Rodent

Citation: Cavigelli, S. A., Guhad, F. A., Ceballos, R. M. et al. 2006. Fecal corticoid metabolites in aged male and female rats after husbandry-related disturbances in the colony room. Journal of the American Association for Laboratory Animal Science [Contemporary Topics in Laboratory Animal Science] 45(6), 17-21.

Do audible and ultrasonic sounds of intensities common in animal facilities affect the autonomic nervous system of rodents?

Evidence demonstrates that audible noise and ultrasound have deleterious effects on rodent physiology. ... The data obtained from this study indicate that audible noise, but not ultrasound, affects the ANS. Because the cardiovascular, respiratory, renal, and gastrointestinal systems are under...

Year Published: 2006Animal Type: Rat, Rodent

Citation: Burwell, A. K. B. A. L. 2006. Do audible and ultrasonic sounds of intensities common in animal facilities affect the autonomic nervous system of rodents? Journal of Applied Animal Welfare Science 9, 179-200.

Long-term effects of cage-cleaning frequency and bedding type on laboratory rat health, welfare, and handleability: a cross-laboratory study

Cleaning frequency had no clear impact on rat welfare, although frequent cleaning decreased ammonia concentrations and handleability, and non-aggressive skirmishing was highest in weekly cleaned rats. Surprisingly, bedding type did not affect ammonia, but all ammonia readings were unexpectedly low....

Year Published: 2006Animal Type: Rat, Rodent

Citation: Burn, C. C., Peters, A., Day, M. J. et al. 2006. Long-term effects of cage-cleaning frequency and bedding type on laboratory rat health, welfare, and handleability: a cross-laboratory study . Laboratory Animals 40(4), 353-370.

Acute effects of cage cleaning at different frequencies on laboratory rat behaviour and welfare

We found no evidence that cage cleaning caused rats any acute decrease in welfare - a finding consistent with additional data we have obtained on the lack of preference by rats for soiled over clean cages, and a lack of...

Year Published: 2006Animal Type: Rat, Rodent

Citation: Burn, C. C., Peters, A., Mason, G. J. 2006. Acute effects of cage cleaning at different frequencies on laboratory rat behaviour and welfare. Animal Welfare 15, 161-171.

The effects of individual housing on mice and rats: a review

Although the effects of individual housing have been an issue for the last forty years, it remains difficult to elucidate its impact on animal welfare.

Year Published: 2006Animal Type: Mouse, Rat, Rodent

Citation: Krohn, T. C., Sorensen, D. B., Ottesen, J. L. et al. 2006. The effects of individual housing on mice and rats: a review. Animal Welfare 15(4), 343-352.

Note on assessing the time of acclimatization of rats after a 5-h transport to a new animal facility

Rats have to recover from the transport for at least 4 days, as reflected by the returning of BT, HR and Act to before transport levels.

Year Published: 2006Animal Type: Rat, Rodent

Citation: Kramer, K., Giral, M., Robert, R. et al. 2006. Note on assessing the time of acclimatization of rats after a 5-h transport to a new animal facility. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 162 (Abstract).

Effects of cage-cleaning frequency and bedding type on laboratory rat health and welfare

They were cleaned either twice-weekly, weekly, or every 2 wk and kept on either aspen woodchips or an absorbent paper bedding. Behavioral welfare indicators, injuries and general health, weight gain, chromodacryorrhoea, willingness to be handled and post-mortem lung pathology were...

Year Published: 2006Animal Type: Rat, Rodent

Citation: Mason, G. J., Burn, C. C. 2006. Effects of cage-cleaning frequency and bedding type on laboratory rat health and welfare. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 122 (Abstract).

Role of cage material, working style and hearing sensitivity in perception of animal care noise

During daily care, laboratory animals are exposed to a variety of sounds which may have effects on welfare and also cause physiological and behavioural changes. In this study, sounds from selected rat care procedures were recorded: pulling cage out of...

Year Published: 2006Animal Type: Rat, Rodent

Citation: Voipio, H.-M., Nevalainen, T., Halonen, P. et al. 2006. Role of cage material, working style and hearing sensitivity in perception of animal care noise. Laboratory Animals 40(4), 400-409.

Investigation of appropriate sanitization frequency for rodent caging accessories: Evidence supporting less-frequent cleaning

This study provides data relevant to establishing a validated frequency for sanitization of rodent caging accessories while controlling, and potentially decreasing, costs associated with sanitization... The cages were evaluated at several time points from 2 wk to 6 mo. For...

Year Published: 2006Animal Type: Rat, Rodent

Citation: Schondelmeyer, C. W., Dillehay, D. L., Webb, S. K. et al. 2006. Investigation of appropriate sanitization frequency for rodent caging accessories: Evidence supporting less-frequent cleaning. Journal of the American Association for Laboratory Animal Science [Contemporary Topics in Laboratory Animal Science] 45(6), 40-43.

Clinical pathology laboratory values of rats housed in wire-bottom cages compared with those of rats housed in solid-bottom cages

Our laboratory data were evaluated by a board-approved veterinary clincical phathologist, who determined that there were no clincially relevant differences between the two groups.

Year Published: 2006Topics: HousingAnimal Type: Rat, Rodent

Citation: Sauer, M. B., Dulac, H., Clark, S. et al. 2006. Clinical pathology laboratory values of rats housed in wire-bottom cages compared with those of rats housed in solid-bottom cages. Journal of the American Association for Laboratory Animal Science [Contemporary Topics in Laboratory Animal Science] 45(1), 30-35.