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What you need to know about August proofs

1. You’ve got a lot of high-ranking, brand-new sire options!

Never before have you had access to more new sires atop the Alta ADVANTAGE, G-STAR, daughter-proven, and Alta511 sexed sire lists! These sires are diverse in what they offer, and they are readily available!

2. You can now take a precision approach to herd fertility management

Starting this proof round, we give you options to most accurately and efficiently manage your herd’s fertility. (Read more about it HERE).

You can now select the right genetics for your herd based on your breeding strategy. We’ve released a sire fertility rating for conventional semen, and a separate sire fertility evaluation based on breedings with sexed semen.

These separate, and lowly correlated ratings will help you create more pregnancies by using the right sire fertility evaluation for your strategy and situation.

Full-size version of the new 511 CONCEPT PLUS logo

Know which bulls will give you highest fertility using Alta511 SexedULTRA semen by finding this 511 CONCEPT PLUS designation on a bull’s individual page on Alta Bull Search.

The industry’s most accurate sire fertility evaluation, CONCEPT PLUS designates whether a bull offers elite fertility on conventional breedings.

3. Some proof numbers were adjusted

  • NM$the index has new weights, and the average change across the industry meant a general increase of about 10 NM$. But many individual bulls changed more than that!
  • DPR – to account for the entire industry DPR drop that happened in April, the average DPR went up this proof round in the following amounts:
    • Holsteins: approximately +1.4 DPR increase
    • Jerseys: approximately +0.5 DPR increase
  • TPI – the average bull increased about 25 TPI points. However, several bulls atop our daughter-proven lineup increased 100 points or more!

4. The most efficient way to reach your genetic and reproductive goals is to set and follow your own, customized genetic plan.

Work with your trusted Alta advisor to set your strategy, and see how you can implement the exciting, new sire options and approach to precision fertility management in your herd.

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Cow livability added to the NM$ formula

Starting in April 2017, the CDCB will include Cow livability into the Net Merit $ formula.

Cow livability (LIV) was introduced as a new trait in August 2016. It measures a cow’s ability to stay alive on the farm, and has a high (0.70) correlation with Productive Life (PL). The difference between LIV and PL is that PL measures a cow’s ability to be productive on the farm. It does not distinguish between death and culling as the reason for leaving the herd.

Cows that die on the farm are a great expense. In fact, based on cull prices, farmers could earn $1,200 less profit for each cow that dies on farm and cannot be sold for beef.

LIV is also correlated to DPR by 0.45 and to SCS by -0.25.

Net Merit changes

Net Merit (NM$) is an estimate of a cow’s lifetime profit to the farm. CDCB updated the formula for April 2017 proofs. It now includes new traits and revisions of traits using current incomes and expenses.

New changes include:

  • LIV is now part of the NM$ formula
  • Economic values are updated and current
  • Body weight composite (BWC) will replace Body size composite (BSC)

Relative values for most other traits included in the formula decreased slightly. The 2017 NM$ formula correlates by 0.989 to the previous NM$ from 2014. The table below shows the differences in the relative value of trait weights between the NM$ formula in 2014 and 2017.

TRAIT2014 NM$ TRAIT WEIGHT2017 NM$ TRAIT WEIGHT
Fat2223.7
Protein2018.3
Milk-1-0.7
Productive life1913.4
Cow livability7.4
Somatic cell score-7-6.5
Daughter pregnancy rate76.7
Calving ability $54.8
Cow conception rate11.6
Heifer conception rate21.4
Udder87.4
Feet & legs32.7
Body size composite-5
Body weight composite-5.9

The relative value of weight on PL decreases now that LIV is part of the NM$ formula. This adjustment will not hinder genetic progress for PL. Instead, it will increase the progress for LIV.

Body weight replaces body size

Since BWC is more closely related to the actual body weight of the cow than BSC, this change results in less selection against stature, body depth, and dairy form.

Finally, to account for updated milk component prices, the new NM$ formula increases emphasis on fat while decreasing emphasis on protein slightly.

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