learn to score body condition step by step - dairy information · learn to score body condition...
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![Page 1: Learn to Score Body Condition Step by Step - dairy information · Learn to Score Body Condition Step by Step Adapted from the 1997 Elanco Animal Health publication, "Body Condition](https://reader031.vdocument.in/reader031/viewer/2022013010/5fd6edcaca218a7f9b5444b7/html5/thumbnails/1.jpg)
Learn to Score Body Condition
Step by StepStep by Step
Adapted from the 1997 Elanco Animal Health publication, "Body Condition Scoring In Dairy Cattle."
Updated July 1, 2004
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Introduction
• The following is a step by step guide to help you learn to assign body condition scores (BCS) based on the process described by Ferguson et al., 1994. described by Ferguson et al., 1994.
• Scorers using this method will be able to assign BCS consistently and accurately.
Ferguson, J. D., D. T. Galligan, and N. Thomsen. 1994. Principal descriptors of body condition score in Holstein cows.
J. Dairy Sci. 77:2695-2703.
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• This system will teach you to evaluate specific areas of the pelvis and loin in an orderly fashion.
• Scores range from 1 to 5 in increments of 0.25.
• This system concentrates on accurately assigning scores from 2.5 to 4.0.
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• Scores outside of this range are extreme and indicate serious problems.
– For example, the difference between a 4.75
and a 5.0 is insignificant, both cows are
seriously over-conditioned and prone to the seriously over-conditioned and prone to the
same metabolic problems.
– We would not base management decisions on
the differences between these scores.
– The same is probably true of two cows
scoring 1.5 and 1.75; both are seriously
under-conditioned.
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• Even with a structured system such as this, some cows will fall between the categories described.
• In this case, scorers must decide which score best fits each cow. score best fits each cow.
• As you assign scores, it may be helpful to continue one step past the score you think the cow should receive. – This allows you a second opportunity to
consider her final BCS.
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• Before you learn the scoring process, let’s review the anatomical areas that are evaluated when assigning BCS.
• For dairy cows, BCS are based on evaluation of the pelvic area and the loin.
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Side View
Pins
Thurl
Hooks
Short Ribs
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Rear View
Hooks
Short Ribs
Sacral Ligament
Pins
Thurl
Tailhead Ligament
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Step 1 - Angle Between
Hooks and Pins
• The first decision you make will divide cows into two groups: those with a BCS less than or equal to 3 and those with a BCS greater than 3. BCS greater than 3.
• From the side view, evaluate the angle between the HOOKS and PINS, using the THURL as a reference point.
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Angle Between
Hooks and Pins
• Angle is a V
• Will be a 3 or less BCS
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Angle Between
Hooks and Pins
• Angle is a U
• BCS will be more than 3
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• This decision may be the most difficult one in the BCS process, especially if the cow is near a 3.0 or 3.25 BCS.
• If the difference between a U and a V is not clear, move to the rear and observe the same clear, move to the rear and observe the same angle between the hooks and pins.
• In addition, evaluate the angularity of the hooks and pins. Cows with sharp, angular hooks and pins will likely score 3 or less. Cows with round, fat-covered hooks and pins will likely score above 3.
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Angular Cow, V-Angle
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Rounded Cow, U-Angle
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More Practice
• Since this first decision can be a little difficult, here are a few more examples.
• Once you have looked at each cow, you • Once you have looked at each cow, you can advance to see the answer.
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Cows with V-Angle –
3.0 or Less
• Now let's refine your score of "3 or less," starting with an evaluation of the HOOKS.
• Are they round or angular?• Are they round or angular?
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Rounded Hooks
• Hooks round
• BCS = 3.0
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Angular Hooks
• Hooks angular
• Will score 2.75 or less
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Check Point
• If these steps don't seem to fit the cow you are scoring, try going through the steps for cows with a U-angle between the hooks and pins.and pins.
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Cows with Angular Hooks –
2.75 or Less
• Now let's refine your score of "2.75 or less," by evaluating the PINS.
• Are they padded or angular?• Are they padded or angular?
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Padded Pins
• Pins visibly padded
• BCS = 2.75
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Angular Pins
• Angular pins
• Will score • Will score below 2.75
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Feel Pins for Fat Pad
• Now let's refine your score of "less than 2.75," by evaluating the PINS more closely.
• Can you feel a fat pad on the point of the pins (a palpable fat pad)?
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Palpable Fat Pad on Pins
• Fat pad present
• BCS = 2.5
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No Fat Pad on Pins
• No fat pad
• Will score • Will score below 2.5
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Evaluate the Visibility of
Short Ribs
• The final decision to refine your score of "less than 2.5," requires a close look at the SHORT RIBS and SPINE.
• Look for the boney ridges of the short ribs.• Look for the boney ridges of the short ribs.
• Estimate the distance that these ridges are easily seen from the tip of the short ribs to the spine.
• Are the ridges visible half of the distance, three-fourths of the distance, more?
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Visible 1/2 the distance
• Ribs visible halfway to the spinespine
• BCS = 2.25
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Visible 3/4 the distance
• Ribs visible three-fourths of the distance to distance to the spine
• BCS = 2.0
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Saw-tooth Spine & Ribs,
Prominent Thurl
• Will score below 2.0
• Cows scored below 2.0 are severely thin and would be managed similarly,
Photo not available
and would be managed similarly, regardless of their exact BCS.
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Cows with a U-Angle –
Score over 3
• Now let's refine your score of "over 3," starting with an evaluation of the TAILHEAD and SACRAL LIGAMENTS.
• The tailhead ligament is found between • The tailhead ligament is found between the tailhead and the pins.
• The sacral ligament is found between the spine and the hooks.
• The visibility of these ligaments will help you score cows with more condition.
• Which ligaments can you see?
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Sacral Visible
Tailhead Visible
• Both ligaments easily seen
• BCS = 3.25
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Sacral Visible
Tailhead Barely Visible
• Tailhead ligament partly covered in fat
• BCS = 3.50
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Sacral Barely Visible
Tailhead Not Visible
• Neither ligament easily seeneasily seen
• BCS = 3.75
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Sacral Not Visible
Tailhead Not Visible
• Neither ligament visible
• Will score 4.0 or more
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Check Point
• If none of these descriptions fit the cow you are scoring, try going through the steps for cows with a V-angle between the hooks and pins.hooks and pins.
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Scores Greater than 4.0
• Now let's refine your score of "over 4," by evaluating the THURL, SHORT RIBS, PINS, and HOOKS.
• The score will increase as more of these parts are covered with fat.
• Which parts can you see?
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Thurl Flat
Short Ribs Visible
• Area between hooks and pins filled with fatfilled with fat
• Tips of short ribs visible
• BCS = 4.0
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Thurl Flat
Short Ribs Barely Visible
• Area between hooks and pins filled with fat
• Tips of short ribs barely visible
• BCS = 4.25
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Thurl Flat
Pins Not Visible
• Area between hooks and pins filled with fat
• Tips of short ribs not visible
• Pins not visible
• BCS = 4.5
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Hooks Barely Visible
• Area between hooks and pins filled with fat
• Tips of short ribs not visible
• Pins and hooks not visible
• BCS = 4.75
Photo not available
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All Boney Prominences
Well Rounded & Fat Covered
• No bones visible
• BCS = 5.0• BCS = 5.0