Beef cows Flashcards

1
Q

how many beef cattle in aus

A

28.7 million

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2
Q

how much beef is exported in aus

A

60-70%

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3
Q

value of beef industry in aus

A
  • 15 billion
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4
Q

top markets in australian beef

A
  • japan, South Korea, China, US, Indonesia
  • marbling, manufacturing and grass fed all factors
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5
Q

common beef breed in aus

A

Bos Indicus

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6
Q

why is ausralian beef exported

A
  • high quality
  • disease free
  • lack oof local supply chain
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7
Q

where are cattle mostly disrtibuted

A
  • north to south coast of east aus
  • some in south west
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8
Q

what is native pasture system

A
  • tropical and subtorpical aus
  • non arable land used fro grazing only
  • extensive system
  • Bos Indicus
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9
Q

what is improved pasture system

A
  • southern aus
  • temeeprate climate
  • Bos taurus
  • extensive or intensive
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10
Q

what is the tick line

A
  • northern line where temperature and rainfall allows for more tick diseases to spread to cows
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11
Q

zoones where cows produced

A
  1. pastoral
  2. wheat sheep zone
  3. high rainfall zone
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12
Q

describe pastoral zone beef production

A
  • central aus (north and middle)
  • cattle sations
  • e.g. anna creek station
  • 0.5-1 million hectares
  • 50 - 60% aus herd here
  • low stocking density
  • native pasture
  • avg 2600 herd
  • low labour
  • bos indicus
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13
Q

when does breeding occur in pastoral zone

A
  • wet seasons when cows most fertile
  • uncontrolled
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14
Q

describe cattle systems in wheat and sheep zone

A
  • 20 -30% herd
  • inland coasts, south
  • 3000 hectares
  • avg 400 head
  • fenced
  • 1 cow/6.6 hectares
  • bos indicus/taurus
  • controlled mating
  • conserved fodder
  • castrate males
  • pregnancy testing
  • supervised calving
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15
Q

describe high rainfall zone cattle

A
  • southern coasts + north east coast
  • 25 -35% herd
  • 950 hectares
  • less than 400 herd
  • 1 cow/3.4 hectares
  • high quality beef
  • low transport costs
  • Bos taurus
  • controlled grazing
  • more conserved fodder
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16
Q

what pasture do cows eat

A
  • annual ryegrass and clover
  • perennial grasses
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17
Q

when do cows need supplementation?

A
  • late summer to mid winter when pasture dies
  • protein supplements
  • weaners and breeders
18
Q

what is feedlots finished beef

A
  • grain fed for a minimum of 60 days in feedlots (pens)
  • family owned usually
  • 500 to 50,000 head
  • 60% are in queensland, 30% in NSW
  • national feedlot accreditation scheme (NFAS) = > 400 farms
19
Q

what is a feedlot

A
  • coonfined yard area with watering and feeding facilities where cattle completely hand or mechanically fed for purpose of production
  • fed once or twice daily
  • bunk managers
20
Q

benefits of feedlots

A
  • consistent finihsing product
  • useful when pasture low
  • controlled diet
  • easy disease control
21
Q

cattle breeds in Northern Aus

A
  • Bos Indicus:
    braham
    droughtmaster etc
22
Q

bos indicus features

A
  • hump
  • droppy ears
  • dewlap
23
Q

southern aus breed

A

Bos Taurus

24
Q

Bos taurus features

A

British:
- smaller
- more fat
European:
- bigger
leaner

25
Q

phases of beef production:

A
  1. breeding
  2. preg testing
  3. weaning
  4. replacement/ finishing (feedlots or pasture)
26
Q

how often do cows have a calf

A

1 per year

27
Q

methods of cow joining

A

controlled:
- north
- less productive
uncontrolled:
- south
- 3 cycles of 9 weeks
- time calving

28
Q

when is pregnancy testing done

A
  • 8-10 weeks
29
Q

when does weaning occur

A
  • 7-8 months old
30
Q

what is breedplan

A
  • genetic slection tool -> estimate breeding value
31
Q

guidlines for cattle welfare includes:

A
  • feed, water, risk management, facilties, equipement, handling, castration, dehorning, spaying, breeding, transport,
    feedlots
32
Q

what welfare laws are in place

A
  • code of practice for the welfare of animals (livestock, 2004)
33
Q

impacts of malnutrition

A
  • decreased immunity
  • stress
  • pregnancy toxaemia
  • milk fever (Ca)
  • Grass tetany
  • vitamin and mineral deficiencies
34
Q

what is lactic acidosis

A
  • overeating carb foods
  • sudden intro onto grain-baised diets (common in feedlots)
  • reduced rumen pH
  • increased fermentation
  • weakness, staggers, drunken gait, diarrhoea, weight loss
35
Q

treatment of lactic acidosis

A
  • reduction is key -> slowly introduce grain diet
  • empty the rumen (expensive)
36
Q

what is laminitis

A
  • caused by high grain diet for long periods
  • laminae in hooves imbalanced
  • extreme pain, off feed, difficult walking
  • sloughing of hooves
37
Q

how to treat laminitis

A
  • prevent with proper nutrition
  • anti-inflammatories
  • keep on soft bedding
38
Q

what are liver abscesses

A
  • caused by sudden changes from pasture to high grain diet
  • rumen wall eroded
  • bacteria gain acces to liver causing necrosis
  • abdominal pain
39
Q

how to treat abscesses

A
  • antibotics
  • manage acidosis
  • transition to grain slowly
40
Q

what is bovine respiratory disease

A
  • VERY serious
  • most common
  • variety of infectious viruses and bacteria
  • coughing, nasal discharge, depression, pneumonia
41
Q

how to prevent/ttreat bovine resp disease

A
  • vaccines, reduced stress
  • antimicrobials
42
Q
A