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Body Condition Scoring Made EasyThe official field guide
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Body Condition Scoring Made EasyThis booklet is a compilation of research results over a number of years, made possible by the investment of farmers in their industry through the DairyNZ levy as well as by other industry research and funding bodies.
Authors
Kevin Macdonald – DairyNZ Senior Scientist, Farm SystemsJohn Roche – DairyNZ Principal Scientist, Animal Science.
DairyNZ acknowledges, with thanks, the support of the Sustainable Farming Fund and the assistance of the farmer reference group in the development of this booklet.
First Edition – January 2004
Second Edition – June 2008
This Edition – June 2011
DNZ10-101
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Body condition scoring in New ZealandAssessment of a cow’s body condition score (BCS) gives a visual estimate of her body fat reserves. This in turn provides useful information on the outcome of her previous feed levels, her current health status as well as her future feed requirements and productivity. The BCS method described in this guide provides a consistent way of assessing cow condition.
• A BCS scale of 1 to 10 is used in NZ
• If the BCS of any animal falls below 3 (on a scale of 1-10), urgent action must be taken to improve condition
• A cow with a BCS greater than 6.0 is considered obese
• 1 BCS unit change = 6.58% of cow liveweight (lwt)
Jersey (425 kg lwt): 1 BCS unit change = 28 kg lwt
Crossbred (475 kg lwt): 1 BCS unit change = 31 kg lwt
NZ Holstein-Friesian (500 kg lwt): 1 BCS unit change = 33 kg lwt
Overseas Holstein-Friesian (550 kg lwt): 1 BCS unit change = 36 kg lwt
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4
The importance of cow condition
Body condition scoring is the same for all breeds but remember:
Jersey (smaller frame) Narrow body with prominent hip bones
Crossbred (medium frame) Even distribution of fat over body
NZ Holstein-Friesian (medium frame) Even distribution of fat over body, blockier shape - shorter, rounder
Overseas Holstein-Friesian (large frame) Angular body shape, appear thinner, carry more body fat over ribs
Body condition score targets at calving
• Mature cows: BCS of 5.0
• Heifers & rising 3 year olds: BCS of 5.5
• No more than 15% of herd below BCS 5.0
• No more than 15% of cows are above BCS 5.5.
Body condition score targets at mating
• The average decrease in BCS for the herd after calving is no more than 1.0
• No more than 15% of cows below BCS 4.0 and cows gaining BCS.
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5
How to body condition score a cow using a “hands on” method
Body condition scoring is a simple process. However, it is important to calibrate the eye by first condition scoring cows
“hands on” at the dairy. Then you are ready to BCS cows in the paddock:
• Line up 15 cows with a range of BCS
• Put your hands on the important body points (see pgs 6-7)
• Feel the amount of fat cover over the various body points and the differences between the cows*
• Average the different areas to come up with the BCS for that cow.
*Note: Gut fill can give visual impression of condition over the ribs; it is, therefore, important to feel the amount of fat cover.
What to look for when you condition score cows
Backbone – is it flat or is there a ridge? Can you see or easily feel notches?
Long ribs – can you see or easily feel the ribs? If visible how many can you see?
Short ribs – can you see the short ribs? What do they feel like? Are the rib ends sharp or rounded?
Hip bones – are the hip bones rounded or angular?
Rump – is the area between the pins and hip bones, flat, sunken or hollow?
Pin bones – are they pointed, “tap” like or rounded?
Tailhead – is there a hollow between the tail head and pin bones? Is it a deep V or shallow U shape?
Thigh – is the area indented, flat or rounded? Is the muscle structure defined?
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6
Long RibsShort Ribs
Backbone
Thigh
Critical points for body condition scoring
Rump Hips
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7
Pins
Backbone
Thigh
Tailhead
Hips
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8
BCS 3.0 4.0 5.0 6.0
BackboneRear view
Side profile
Long Ribs
Short Ribs
Hips
Critical points for body condition scoring
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9
BCS 3.0 4.0 5.0 6.0
Pins
Tailhead
Rump
Thigh
Critical points for body condition scoring
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10
Is your animal fit for transport?
The law takes animal welfare very seriously and has strict rules relating to animal transport and suffering. The following
information is designed to help you decide if an animal is fit for transport.
Animals must not be transported if they display any injuries, signs of disease, abnormal behaviour or physical
abnormalities that could compromise their welfare during the journey, unless a current veterinary certificate as to the
fitness of the animal for transport has been completed.
Animals with a BCS below 3 are subject to transport restrictions; use the following chart to help you decide if your animal
is fit for transport.
Note: This chart is only a guide and does not guarantee acceptance of livestock for transport or processing.
* For further information on the Dairy Cattle Code of Welfare contact DairyNZ on 0800 4 DAIRYNZ (0800 4 324 7969)
From the MAF Dairy Cattle Code of Welfare* : Minimum Standard 18 – Pre-transport Selection
a. The person in charge must examine the selected dairy cattle, prior to transport, to ensure that all animals are
fit and healthy for transportation
b. All dairy cattle must be able to stand and bear weight on all four limbs and be fit enough to withstand the
journey without suffering unreasonable or unnecessary pain or distress
c. Any animal likely to give birth during transport must not be selected.
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11
BCS 3.0 or more
BCS 2.5 to 3.0
BCS less than 2.5
Current vet cert.Do not transport
Options include on-farm slaughter or feed and veterinary
treatment
Fit for transportTo saleyard, processor or
alternate property
Fit for conditional transportDirect to processor or an alternate
property for additional feed/weight gain (not to saleyard)
NO
NO
YES
YES
NO
Start
Fit & healthy YES
YES
NO
How to assess an animal’s fitness for transport:
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12
Is your animal fit for transport? BCS 2.5
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13Is your animal fit for transport? BCS 2.5
BACKBONEVery prominent, with visible notches
that can easily be counted.
LONG RIBThe long ribs may be visible as far
down as the top of the udder.
SHORT RIBClearly visible and easily counted. The
short ribs will have very sharp edges.
HIPDeep depressions on the side of the
hip bone.
PINSVery clear, three pronged tap
formation.
TAILHEADVery prominent and angular, with a
very deep “V” shape.
RUMP Severely depressed (hollow).
THIGH No visible fat and very little muscle.
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14
Friesian BCS 3.0
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15Friesian
BACKBONEProminent ridge. “Roofing-iron” corrugations.
LONG RIB 4 to 5 ribs easily seen.
SHORT RIBProminent with edges sharp to the touch.
HIPAngular, sharp edges. Depressions on sides appearing.
PINSTap-like appearance. Sharp edges.
TAILHEADDeep “V” shape depression. Tailhead prominent, bumpy profile.
RUMP Deeply dished.
THIGHIndented. No visible fat. Muscle structure defined.
Friesian BCS 3.0
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16
Friesian BCS 4.0
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17FriesianFriesian BCS 4.0
BACKBONERidge raised. Ridgeline, uneven and bumpy to the touch.
LONG RIB2 to 3 ribs visible but rounded. Ribs easily felt.
SHORT RIBIndividual ribs can be seen. Rounded at the ends.
HIPNo sharp edges (smooth). Flattened top.
PINSTap-like appearance. Rounded edges.
TAILHEADShallow “U” shape. Tail smooth. Base around tailhead is sunken.
RUMP Slightly depressed. Dished.
THIGH Slight depression.
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18
Friesian BCS 5.0
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19FriesianFriesian BCS 5.0
BACKBONERidge easily visible but rounded
and smooth.
LONG RIBNot visible but rounded to the
touch.
SHORT RIBRounded, individual ribs not visible
but can be felt.
HIP Rounded. Curved in profile.
PINS Rounded.
TAILHEADTail rounded. Depression under tail
filled. Even, no sharp edges.
RUMP Flat even cover.
THIGH Smooth and flat.
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20
Friesian BCS 6.0
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21FriesianFriesian BCS 6.0
BACKBONE Ridge forms a bump. Starting to round across the loin.
LONG RIB Well-rounded with fat cover felt.
SHORT RIB Rounded with fat cover felt.
HIP Rounded with fat cover starting to appear.
PINS Well-rounded. Fat cover starting to appear.
TAILHEAD Fat cover starting to bulge.
RUMP Starting to round.
THIGH Starting to round.
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22
Crossbred BCS 3.0
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23CrossbredCrossbred BCS 3.0
BACKBONEProminent ridge. “Roofing-iron” corrugations.
LONG RIB 4 to 5 ribs easily seen.
SHORT RIBProminent with edges sharp to the touch.
HIPAngular, sharp edges. Depressions on sides appearing.
PINS Tap-like appearance. Sharp edges.
TAILHEADDeep “V” shape depression. Tailhead prominent, bumpy profile.
RUMP Deeply dished.
THIGH Indented. No visible fat. Muscle structure defined.
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24
Crossbred BCS 4.0
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25CrossbredCrossbred BCS 4.0
BACKBONERidge raised. Ridgeline, uneven and bumpy to the touch.
LONG RIB2 to 3 ribs visible but rounded. Ribs easily felt.
SHORT RIBIndividual ribs can be seen. Rounded at the ends.
HIPNo sharp edges (smooth). Flattened top.
PINSTap-like appearance. Rounded edges.
TAILHEADShallow “U” shape. Tail smooth. Base around tailhead is sunken.
RUMP Slightly depressed. Dished.
THIGH Slight depression.
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26
Crossbred BCS 5.0
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27CrossbredCrossbred BCS 5.0
BACKBONERidge easily visible but rounded and smooth.
LONG RIBNot visible but rounded to the touch.
SHORT RIBRounded, individual ribs not visible but can be felt.
HIP Rounded. Curved in profile.
PINS Rounded.
TAILHEADTail rounded. Depression under tail filled. Even, no sharp edges.
RUMP Flat even cover.
THIGH Smooth and flat.
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28
Crossbred BCS 6.0
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29CrossbredCrossbred BCS 6.0
BACKBONERidge forms a bump. Starting to round across the loin.
LONG RIB Well-rounded with fat cover felt.
SHORT RIB Rounded with fat cover felt.
HIPRounded with fat cover starting to appear.
PINSWell-rounded. Fat cover starting to appear.
TAILHEAD Fat cover starting to bulge.
RUMP Starting to round.
THIGH Starting to round.
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30
Jersey BCS 3.0
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31JerseyJersey BCS 3.0
BACKBONEProminent ridge. “Roofing-iron” corrugations.
LONG RIB 4 to 5 ribs easily seen.
SHORT RIBProminent with edges sharp to the touch.
HIPAngular, sharp edges. Depressions on sides appearing.
PINS Tap-like appearance. Sharp edges.
TAILHEADDeep “V” shape depression. Tailhead prominent, bumpy profile.
RUMP Deeply dished.
THIGH Indented. No visible fat. Muscle structure defined.
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32
Jersey BCS 4.0
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33Jersey
BACKBONERidge raised. Ridgeline, uneven and bumpy to the touch.
LONG RIB2 to 3 ribs visible but rounded. Ribs easily felt.
SHORT RIBIndividual ribs can be seen. Rounded at the ends.
HIPNo sharp edges (smooth). Flattened top.
PINSTap-like appearance. Rounded edges.
TAILHEADShallow “U” shape. Tail smooth. Base around tailhead is sunken.
RUMP Slightly depressed. Dished.
THIGH Slight depression.
Jersey BCS 4.0
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34
Jersey BCS 5.0
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35JerseyJersey BCS 5.0
BACKBONE Ridge easily visible but rounded and smooth.
LONG RIB Not visible but rounded to the touch.
SHORT RIB Rounded, individual ribs not visible but can be felt.
HIP Rounded. Curved in profile.
PINS Rounded.
TAILHEAD Tail rounded. Depression under tail filled. Even, no sharp edges.
RUMP Flat even cover.
THIGH Smooth and flat.
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36
Jersey BCS 6.0
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37JerseyJersey BCS 6.0
BACKBONERidge forms a bump. Starting to round across the loin.
LONG RIB Well-rounded with fat cover felt.
SHORT RIB Rounded with fat cover felt.
HIPRounded with fat cover starting to appear.
PINSWell-rounded. Fat cover starting to appear.
TAILHEAD Fat cover starting to bulge.
RUMP Starting to round.
THIGH Starting to round.
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38
Heifer BCS 5.5
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39
BACKBONE Rounded and smooth.
LONG RIB Covered.
SHORT RIB Rounded, cannot be felt.
HIP Rounded.
PINS Rounded.
TAILHEAD Fat cover appearing.
RUMP Flat even cover.
THIGH Smooth and flat.
Heifer BCS 5.5
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40
How many cows should I score visually?• Familiarise yourself with what to look for by assessing 15 cows as described on pgs 5 to 9
• Use a simple recording system, such as the sheet on pg 41, and assess the herd
• Stand amongst a group of cows in the paddock and record the BCS of each one on the sheet, viewing them from their right-hand side and rear
• Once finished move around the paddock to another group
• It is important to assess groups of cows across the whole paddock
• Body condition score at least 70 cows to get a good indication of the average and the range of BCSs within the herd.
This method:• Allows a large proportion of the herd to be assessed quickly
• Gives a good indication of the range of BCS within the herd
• Allows a quick comparison with the BCS of the herd from previous assessments.
To calculate the average BCS for the cows scored:The table below shows that, of the cows that were assessed, the average was 4.2. Turn the table upside down and you will see a bar graph of the BCS distribution.
A separate sheet should be used for first lactation cows to allow you to distinguish them from the mature cows as they are still growing and need to be in a higher BCS at calving. DairyNZ has a BCS recording chart template that can be downloaded from dairynz.co.nz/bcs (see page 41).
Visual body condition scoring for herd management
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41
This herd size = 126 cows Date: 04-06-2011
Condition score 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
lllllllllllll
lllllllllllllllllllllllllll
lllllllllllllllllllllllllllllllll
lllllllllllllllllllllllllll
llllllllllllll
llllllll
llll
Totals
Number of cows 13 27 33 27 14 8 4 126 A
Total BCS 39 94.5 132 121.5 70 44 24 525 B% of sample (Number of cows in
BCS group ÷ Total Cows (A)10.3% 21.4% 26.2% 21.4% 11.1% 6.4% 3.2%
Average Condition Score:
Total CS Divide by Total Number of cows = Average BCS
B 525 ÷ A 126 = 4.2
BCS recording chart
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For further information on body condition scoring cows contact DairyNZ on 0800 4 DAIRYNZ (0800 4 324 7969) or your local DairyNZ Consulting Officer.
DairyNZCorner Ruakura and Morrinsville Roads Private Bag 3221 Hamilton 3240
dairynz.co.nz
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DisclaimerWhile every effort has been made to ensure the information in this booklet is accurate, DairyNZ and its officers and
employees do not guarantee that it is without fault or wholly appropriate for your particular purposes, and should
therefore not be relied upon as a comprehensive statement of the law or practice relating to agribusiness management.
DairyNZ, its officers and employees will accept no responsibility or liability whatsoever for any loss, damage or expense
suffered by you or any other person resulting in any way from the use of, or reliance upon this module.
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ISBN 0-476-00217-6
dairynz.co.nz