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10 Cards in this Set

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  • Back
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What is the bold line on the chart?

Milk production

What is the dotted line on the chart?

Dry matter intake

For the chart, what represents phase 3, phase 4, phase 5, phase 1 and 2?

Phase 3 = fresh


Phase 4 = peak milk


Phase 5 = peak DIM


Phase 6 = tail end


Phase 1 = far off


Phase 2 = close-up

Name some things that would affect energy balance, body condition score and fertility

Genetics, nutrition, reproduction status, frequency, DI am, season, age: breed, health: mastitis calving twins

What is peak milk?

Highest milk production


Usually by 60 to 90 DIM


One + lbs at peak=250 lbs 4 lact


Older cows have higher peak

What is summit milk?

The average of the highest two of the first three tests

What is the 305 mature equivalent?

It adjusts the current production record for the cow to what she would be producing at 3+ years lactation or greater as a mature cow.

What is persistency?

The slope of a curve after peak


1st lactation cows are more persistent than older cows

What does TIM stand for?

A procedure used to determine a cows lactation curve


-Adjustments and predictions are made based on cows fresh and dry dates relative to test date

What does DCR stand for?

Data Collection Ratings

A measure of accuracy of milk production records