Topic 52

Question 1

growth

Answer 1

quantitive change

• incr weight and size, daily gain - due to body dev
• (conception) -> intrauterine life -> (birth) -> pre + post weaning (main growth phase)

Question 2

compensatory growth

Answer 2

if growth is less than normal for some months due to under-nutrition, then later when good nutrition is available the liveweight gain of the cattle will be greater than would otherwise be the case. It means that there is a ‘rebound’ effect.

Question 3

development

Answer 3

qualitative change

In characteristics, body proportions, organ function in certain organs

Include all phases of life from conception to post-weaning(end-growth), and the rest of the extrauterine life till death

Question 4

Sexual maturity

Answer 4

Ext+int sexual organs, and its gonads prod gametes

Reached ish 50% of adult bodyweight

Question 5

Breeding maturity

Answer 5

Mature if it doesn’t cause harm to the animal; further development, production

Reached ish 70% of adult weight –> after sexual maturity (growing phase)

Question 6

(dairy type)

Answer 6

1st pregnancy during rasing phase of life -> 1st delivery -> utilisation part of life(adulthood)

Extrauterine life: Ish 1/3 raising, 2/3 utilisation

Question 7

(Racing type)

Answer 7

Raising -> utilisation -> breeding

Question 8

(working type)

Answer 8

No breeding, raising and utilisation period same as above

Question 9

(meaty type)

Answer 9

2 SHORT equally long phases of raising and utilisation