D3: Main reproduction features of poultry species, puberty, breeding maturity, biology of egg production, broodiness and moulting/forced moulting

Question 1

how many eggs do hens lay per day?

Answer 1

one to two eggs per day
under natural conditions will stop laying when a clutch is complete.

Question 2

Egg production of meat-type hens:

Answer 2

80 - 110 eggs

Question 3

Egg production of layer-type hybrids:

Answer 3

290 - 310 eggs

Question 4

Specific feed utilisation in hen egg production:

Answer 4

2.1 - 2.3kg / kg egg

Question 5

Annual egg production of dual-purpose hen varieties

Answer 5

150 250 eggs

Question 6

Adult body weights in hens

Answer 6

1.5 - 6 kg

Question 7

Annual egg production of the hen

Answer 7

100 - 30l eggs

Question 8

Specific feed utilisation in broiler chicken fattening:

Answer 8

1.5 - 2.3 kg/kg LW

Question 9

The weight of a hen’s egg:

Answer 9

60 - 63g

Question 10

Weight gain of broilers:

Answer 10

2kg / 5 - 6 weeks

Question 11

Number of eggs that can be fertilised from the ejaculate of a cock, goose or gosling
using diluted fresh semen (AI):

Answer 11

10 - 20 eggs

Question 12

Number of mothers that can be paired to a cock, goose or gosling when mating in a harem

Answer 12

8 - 15 layers

Question 13

Sexual (and breeding) maturation of the laying hen:

Answer 13

18 - 20 weeks

Question 14

Sexual (and breeding) maturation of the meat-type hen:

Answer 14

22 - 24 weeks

Question 15

How often does moulting occur

Answer 15

First moulting occurs at 16 - 18 months old.
Takes place annually.
May take 8 weeks to mount and grow back.