Module 4 Flashcards

Nutrition of Grazing Animals

1
Q

What are DSE requirement of weaned sheep

A

1

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2
Q

What are DSE requirement of dry/early sheep

A

1

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3
Q

What are DSE requirement of late pregnant sheep

A

1.5

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4
Q

What are DSE requirement of lactating sheep

A

2.5

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5
Q

What are DSE requirement of rams

A

2

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6
Q

What are DSE requirement of weaner/yearlings cattle

A

8

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7
Q

What are DSE requirement of steer/bullocks/beef cow

A

8

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8
Q

What are DSE requirement of dry/early pregnant cattle

A

8

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9
Q

What are DSE requirement of late pregnant cattle

A

10

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10
Q

What are DSE requirement of lactating cattle

A

15

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11
Q

What are DSE requirement of milking cattle

A

23

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12
Q

What are DSE requirement of bulls

A

15

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13
Q

What are crude protein requirement of weaner/yearlings cattle/sheep

A

12%

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14
Q

What are crude protein requirement of dry/early pregnant sheep

A

6%

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15
Q

What are crude protein requirement of late pregnant sheep

A

8%

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16
Q

What are crude protein requirement of lactating sheep/cattle

17
Q

What are crude protein requirement of milking dairy cow

18
Q

What are crude protein requirement of bulls

19
Q

What are crude protein requirement of steer

20
Q

What are crude protein requirement of late pregnant sheep

21
Q

What Affects ME Intake

A
Feed availability (kg DM/ha) 
Animal factors
Energy (MJ ME/kg DM) 
Protein (% CP) 
Climate
22
Q

Pasture Factors

A
Quantity = ‘feed availability’ 
Quality = ME, % CP
23
Q

What is the kg DM/ha of 1cm, 3cm, 5cm, 9cm, 12cm

A

500, 1000, 1500, 2000, 2500

24
Q

Why cant animals eat more if the quality of feed go down

A

because it needs time to digest, and graze because of the bite size as well. This prevent them to intake anymore food

25
Which part of the year have the highest digestibility grass
April-Nov
26
Which part of the year have the lowest digestibility grass
Jan-Mar
27
What is the Maximal intake of cattle or sheep
2-3% of normal bodyweight (cattle sheep)
28
What impact does the hot weather have
Eating less, finding shelter cooling down
29
What the the pasture digestibility of high quality grass
75%, 11.2 MJ/kg DM. 1000 for dry cows
30
What the the pasture digestibility of medium quality grass
68%, 10.1 MJ/kg DM
31
What the the pasture digestibility of low quality grass
60%, 9 MK/kg DM, 2600 for dry cows
32
What is one grazing system
Rotational grazing : paddocks rested to re-grow pasture; current paddock grazed at high stocking rate to eat maximum quantity of pasture
33
What can happen when too much soluble carbohydrate(grain) are consumed
causes overgrowth of undesirable bacteria in rumen (cattle, sheep) or hindgut (horses) ➜ Lactic acidosis/‘grain poisoning’!
34
What are the rules for feeding grains
–  Ruminants: introduce grain over 2-3 weeks, starting with 50 (S)/ 500 (C) g/head/day •  10-30% fibre keeps rumen healthy but lowers dietary ME –  Horses: avoid diets > 50% grain & introduce large quantities over several days