ALAT Animal Husbandry and Care 5

Question 1

A zebra fish (Danio rerio) tank shows cloudy water and increased fish mortality. The FIRST corrective action should be:

Accepted Answer

Test water parameters (pH, ammonia, nitrite, temperature) and perform a partial water change

Answer

Add antibiotics to the water immediately

Answer

Increase feeding frequency

Answer

Transfer all fish to a new tank without testing

Question 2

What is the correct gavage (oral) volume limit for a standard laboratory mouse (25–30 g)?

Accepted Answer

Up to 0.5 mL

Answer

Up to 5 mL

Answer

Up to 10 mL

Answer

Up to 2 mL

Question 3

Which of the following nonhuman primate (NHP) behaviors indicates a potential welfare concern requiring veterinary evaluation?

Accepted Answer

Self-directed biting or excessive rocking (stereotypy)

Answer

Grooming cage-mates

Answer

Foraging for enrichment items

Answer

Vocalizing when approached

Question 4

A technician must perform a tail vein injection in a mouse. Which technique best facilitates venous dilation prior to injection?

Accepted Answer

Briefly warming the tail with warm water or a heat lamp

Answer

Applying ice to the tail to constrict vessels

Answer

Applying a tourniquet above the injection site for 10 minutes

Answer

Massaging the tail with alcohol only

Question 5

Which of the following is true about coprophagy in rabbits?

Accepted Answer

It is a normal behavior that allows rabbits to recover cecotropes rich in nutrients

Answer

It is a sign of nutritional deficiency and should be prevented

Answer

It transmits intestinal parasites and must be eliminated with antibiotics

Answer

It only occurs in sick rabbits and indicates GI disease

Question 6

What is the primary purpose of performing a physical examination on animals upon receipt from a vendor?

Accepted Answer

To detect signs of illness or injury and establish baseline health status

Answer

To assign study group numbers before quarantine ends

Answer

To administer all required vaccines immediately

Answer

To weigh animals and adjust experimental dosing before acclimation

Question 7

Which of the following is a common clinical sign of pinworm (Syphacia or Aspiculuris spp.) infestation in laboratory mice?

Accepted Answer

Perianal pruritus and occasional weight loss

Answer

Bright red urine

Answer

Severe respiratory distress

Answer

Bilateral eye discharge