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Targets for your transition

Using data from its Transition Management System, Premier Nutrition has developed a series of key targets for transition including ‘alarm rates’ when action is urgently called for.

Dry cow body condition score (BCS)

 

Journal of Dairy Science scale using a 1 to 5 scale in 0.25 increments (BCS). The larger the number, the more condition the cow is carrying. There is an ideal sweet spot for transition cows – not too much and not too little.

 

Target - 3 to 3.25

Alarm rate - Less than 2.75 & more than 3.75

 


 

BCS change dry to fresh

 

The difference in body condition from its BCS taken as a close-up dry cow to BCS record as a fresh cow.

 

Target - 0

Alarm rate - More than -0.5

 


 

Parameter - Rumen fill dry

 

AHDB’s scale of 1 (empty) to 5 (full) in increments of 1 to determine how full the cow’s rumen is (and therefore how recently it has eaten). Look at the cow’s side to see how concave/convex is the area below its short ribs, along the front of the first long rib and back up in front of the hook.

 

Target - 4

Alarm rate - <4

 


 

Lameness incidence

 

AHDB’s scale of 0 (not lame) to 3 (chronically lame). A chronically lame cow has a severely arched back, walks very poorly with discomfort and does not track. A correct cow stands evenly on all four feet, walks at a normal pace without discomfort and will track to its front feet well.

 

Target - 0

Alarm rate - >3%

 


 

True ketosis risk

 

A cow with a first milk recording fat to protein less than 1.4 and with a protein yield of less than 1kg in cows and 0.85kg in heifers.

 

Target - <10%

Alarm rate - >15%

 


 

Displaced abomasum

 

Cows that have experienced a twisted stomach early after calving.

 

Target - <1%

Alarm rate ->3%

 


 

Milk fever

 

When a fresh cow has gone down and is in a state of clinical hypocalcaemia.

 

Target - <2%

Alarm rate ->5%

 


 

Retained foetal membranes (RFM)

 

RFMs or retaining cleansings are counted when the RFM has been held for over 24 hours after calving.

 

Target - <2%

Alarm rate - >5%

 


 

New mastitis risks

 

The last somatic cell count (SCC) recording from the previous lactation (drying off) and the first from the current lactation (fresh) are considered. If the SCC was below 200,000 at drying off and above at fresh, this is a new mastitis risk. For heifers, if the first recording is above 200,000, it counts as a new risk.

 

Target - <10% (<7% heifers)

Alarm rate - >14% (>10% heifers)

 


 

Sustained mastitis risk

 

Sustained risk is if SCC is above 200,000 at drying off and remains at fresh.

 

Target - <10%

Alarm rate - >15%

 


 

Cows leaving the herd less than 100 days in-milk

 

Any cows that have left the herd in their first 100 days in-milk – whether a planned loss or fatality, or as a planned sale.

 

Target - <5%

Alarm rate - >7%


Read More

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Small changes, big benefitsSmall changes, big benefits
Targets for your transitionTargets for your transition

Transition Cow Management Toolkit Hub

Transition Cow Management Toolkit Hub

Your essential toolkit guide to transition cow management

 

 

Click here to visit the homepage

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