Sample Qs P.2

Question 1

PDI requirements of ewe maintenance:

Answer 1

2.5kg X LW ^0.75

Question 2

PDI lactation requirements:

Answer 2

1.72 x protein (g/L)

Question 3

Lambing percentage equation:

Answer 3

No. of lambs born/No. of ewes to ram X 100

Question 4

Weaning % equation:

Answer 4

No. of lambs reared/No. of lambs to ram X 100

Question 5

Euro Star Index Figures

Answer 5

5 Star = Top 20%
4 Star = Top 60-80%
3 Star = Top 40-60%
2 Star = Bottom 20-40%
1 Star = Bottom 20%

Question 6

Heritability:

Answer 6

Heritability rate for:
Days to slaughter - 0.20
Carcass confirmation - 0.25
Carcass fat - 0.15

Maternal days to slaughter - 0.10
Maternal carcass confirmation - 0.12
Maternal carcass fat - 0.08

Ewe mature weight - 0.30

Question 7

what is the most common reason for culling between the age of 4-6?

Answer 7

Teeth

Question 8

What is the national replacement rate?

Answer 8

22%

Question 9

What is the avg age a ewe dies?

Answer 9

4.7 years

Question 10

At what age do incissors (I1) erupt?

Answer 10

1-1.5 years

Question 11

At what age do Incissors (I2) erupt?

Answer 11

1.5-2 yrs

Question 12

At what age do Incissors (I3) & (I4) erupt?

Answer 12

I3 = 2.5-3 yrs
I4 = 3.5-4 yrs

Question 13

Does lamb mortality increase or decrease with age?

Answer 13

Decrease

Question 14

What is the criteria for mating ewe lambs?

Answer 14

60% mature BW
1:30 - Ram:ewe max
First 2 trimesters have 20% more feed
Wean at 12 wksto recover for yr 2

Question 15

What are the 4 vaccines for abortion prevention?

Answer 15

Toxoplasmosis
Enzootic abortion
Salmonella
Campylobacter

Question 16

What type of vaccines are given to ewes for abortion prevention

Answer 16

Live vaccines - 3-4 wks pre mating

Question 17

What is the net cost of rearing a replacement ewe?

Answer 17

€126.40

Question 18

How many farmers are lowland?

Answer 18

60%

Question 19

What % of sheep are lowland?

Answer 19

55%

Question 20

How many farmers are hill production?
What % of sheep are in hill production?

Answer 20

40%
45%

Question 21

What % of lambing occurs between March-April

Answer 21

80%

Question 22

who is the largest net exporter in the EU

Answer 22

IREland

Question 23

what is the world consumption for sheep meat %

Answer 23

5%

Question 24

What % of Aus & Nz exports were destined for China?

Answer 24

Aus = 30%
Nz = 50%

Question 25

What % of sheep processing will be done over 3 processors?

Answer 25

95%

Question 26

Avg oestrus cycle length?

Answer 26

17 days 14-19 range

Question 27

What is the gestation period?

Answer 27

145 days = 5 months 5 days 144-153 range

Question 28

what is the lambing to mean sale date?

Answer 28

16 wks

Question 29

what is the conception rate with sponging

Answer 29

85-87% Benefit = compact lambing

Question 30

What should the BCS of rams be?

Answer 30

3.5-4

Question 31

how much more semen do large testicles make than medium sizes?

Answer 31

80%

Question 32

ratio of a ram lamb to a ewe?

Answer 32

25/30:1

Question 33

Ratio of a shearling to a ewe?

Answer 33

50-60:1

Question 34

Ratio of a 2 Shear (2-3yr old ) to a ewe?

Answer 34

up tp 80

Question 35

what is the saving due to raddling per ewe?

Answer 35

€1.08/ewe

Question 36

what is the saving per tonne of concentrates with ram raddling?

Answer 36

€44

Question 37

what did a 1 increase in BCS from 2.5-4 increase litter size by and weaning rate?

Answer 37

0.13 litter size & 0.1 increased weaning rate

Question 38

Target BCS 8 wks pre-mating?

Answer 38

2.5 minimum

Question 39

Target BCS at mating?

Answer 39

3-3.5

Question 40

Target BCS at lambing?

Answer 40

3

Question 41

Target BCS at weaning?

Answer 41

2-2.5

Question 42

what is gaining 1 BCS the equivelant to in terms of energy gain?

Answer 42

10 kg

Question 43

what does each kg of live weight contain?

Answer 43

24MJ/kg

Question 44

what efficency is energy used with?

Answer 44

45%

Question 45

what does a ewe require per kg gain?

Answer 45

55MJ

Question 46

when does ovulation occur?

Answer 46

12 hours after oestrus

Question 47

when should fertilisation take place?

Answer 47

24 hrs after ovulation

Question 48

how long after fertilisation does implantation occur?

Answer 48

15 days