ALAT Animal Husbandry and Environment 2

Question 1

What is the recommended temperature range for housing laboratory mice according to the Guide?

Accepted Answer

64-79 F (17.8-26.1 C)

Answer

55-65 F (12.8-18.3 C)

Answer

80-90 F (26.7-32.2 C)

Answer

50-60 F (10.0-15.6 C)

Question 2

How often should water bottles in rodent cages typically be changed?

Accepted Answer

At least twice per week

Answer

Daily

Answer

Once per month

Answer

Only when empty

Question 3

What is the primary purpose of providing nesting material to laboratory mice?

Accepted Answer

To allow thermoregulation and species-typical behavior

Answer

To increase cage cleaning frequency

Answer

To reduce the need for food supplementation

Answer

To prevent escape from the cage

Question 4

What ventilation system provides HEPA-filtered air to individual cages and maintains cage-level containment?

Accepted Answer

Individually ventilated caging (IVC)

Answer

Static microisolator cages

Answer

Open-top shoebox cages

Answer

Metabolic caging systems

Question 5

What is the minimum recommended cage change frequency for rats housed on contact bedding?

Accepted Answer

At least once per week

Answer

Daily

Answer

Every two weeks

Answer

Monthly

Question 6

Why is it important to maintain a consistent 12:12 light-dark cycle in rodent housing rooms?

Accepted Answer

It synchronizes circadian rhythms critical for physiology and reproduction

Answer

It reduces electricity costs

Answer

It prevents coat color changes

Answer

It eliminates the need for environmental enrichment