AHPS week 11 - 12

Question 1

Which three species are exempt from the animal welfare act in the USA?

Answer 1

Fish, mice and rats

Question 2

Which species are exempt from the animal welfare act in AU?

Answer 2

Insects

Question 3

What role do the NHMRC play?

Answer 3

One of the major funding bodies for scientific research in AU
Write a Code of Practise document

Withhold funding if you dont adhere

Question 4

What is an inbred mouse strain? Give an example

Answer 4

Mated brother-sister for 20 generations to achieve total homozygosity.
e.g C57BL/6

Question 5

Define ‘conventional’ mouse

Answer 5

Not known to be free of any pathogens. May have subclinical disease if stressed

Question 6

Define SPF mouse

Answer 6

Specifically Pathogen Free - list of pathogens different for each lab

Question 7

Define axenic mouse

Answer 7

Completely germ free

Question 8

Define SCID mouse

Answer 8

Lack mature T and B

Question 9

Define NOD SCID gamma mouse

Answer 9

Lack mature B and T cells and NK cells, lack compliment

Question 10

What is good humidity for the animal housing area in a lab?

Answer 10

30 - 70%

Question 11

What is one important aspect of lighting in an animal housing facility for research species?

Answer 11

Lighting should resemble a photoperiod

Question 12

Define biosecurity

Answer 12

The sum of all measures intended to prevent, detect, contain and eradicate infective agents

Question 13

List three strengths of conventional cages

Answer 13

Easier to manage communicable disease
Less exposure to parasites of soil and diseases from wild birds
Can better regulate temperature and ventilation

Question 14

List three weaknesses of conventional cages

Answer 14

Limited behavioural expression
Feather loss
Foot and leg issues

Question 15

List three strengths of barn systems

Answer 15

Behavioural expression is possible including dust bathing, flying and hiding
Bone strength is improved
Birds are easily inspected

Question 16

List three weaknesses of barn systems

Answer 16

Increased group size predisposes to feather pecking and cannibalism
More difficult to isolate individual birds
Increased amounts of dust and ammonia in the air

Question 17

List three strengths of free range

Answer 17

Maximum normal behavioural expression possible
Diet and environment are more varied
Animals have more choice in behaviour and environment

Question 18

List three weaknesses of free range

Answer 18

Increased risk of catching diseases from wild birds + parasitism
Damage to the environment
More expensive to maintain & have to maintain range area pasture

Question 19

List three advantages of barn housing for broilers

Answer 19

Automated control of ventilation, temperature, humidity
Minimal feed wastage
No predation

Question 20

List three weaknesses of barns

Answer 20

Lack of outside access and mental stimulation
Have to manage litter
Higher incidence of respiratory disease

Question 21

List three advantages of free range system for broilers

Answer 21

Natural behavioural expression
Lower SR - less stress
Lower incidence respiratory disease

Question 22

List three weaknesses of free range for broilers

Answer 22

Higher incidence of parasitism
Risk of zoonotic development / biosecurity
Reduced FCR and carcase quality