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A genetic approach to improved fertility

Alta 4-EVENT COWS don’t happen by accident. It takes a clear focus on the best day-to-day management, and a long-term plan toward breeding and developing a healthy, fertile, and productive herd.

Here, we focus in on how the decisions you make on breeding and genetics can help you create more 4-EVENT COWS in your herd. We share two ways – plus some proof – that genetics are a key piece of the puzzle in main­taining a trouble-free, profitable herd – now and down the road.

1. CREATE MORE PREGNANCIES NOW

If you’re looking for a fertility advantage on inseminations today, sire fertility rankings are where you’ll want to focus. The Alta CONCEPT PLUS sire fertility evaluation ranks each sire on his ability to get cows pregnant. In fact, regardless which semen type you use in your breeding strategy, you’ll find high fertility CONCEPT PLUS options to fit.

Why should you trust Alta’s CONCEPT PLUS ratings? They are based on real pregnancy check results from progressive dairy herds throughout North America. The evaluation also maintains accuracy by accounting for factors like number of times bred, month/season, technician and breeding code effects.

 

  • CONCEPT PLUS DxD – high fertility sires will give you a 2%-5% greater chance at creating a pregnancy with conventional semen.
  • 511 CONCEPT PLUS – high fertility SexedULTRA sires offer a 4%-9% conception rate advantage over the average sexed bull
  • CONCEPT PLUS BxD – high fertility beef x dairy sires give you a 2%-5% greater chance at creating a conventional pregnancy than the average beef bull used on dairy cows.

If you’re more familiar with sire conception rate (SCR), keep in mind that Alta’s CONCEPT PLUS evaluation is more complete, current, and consistent – and actually served as a basis for SCR. The table below compares what’s included and accounted for in each evaluation.

4-EVENT COW Circle Logo
Comparing sire fertility evaluationsSCRCONCEPT PLUS
Based on real pregnancy check dataXX
Accounts for various factors affecting fertility, including age, month, herd, service number and lactationXX
COMPLETE
Separate ratings available per semen type: conventional, sexed, and beef x dairy breedingsX
Accounts for additional factors affecting fertility, like technician and breeding code effectsX
Data is collected from progressive dairies in North America, and not restricted to US farms on official testX
CURRENT
Ongoing data is collected and evaluated directly from DairyComp and other herd management programsX
Updates are available every other monthX
CONSISTENT
Data is gathered only from large-herd environments with progressive management and reproduction programsX

2. CREATE MORE FERTILE COWS FOR THE FUTURE

While sire fertility selection can get you more pregnancies, and more Alta 4-EVENT COWS now, it takes a long-term plan and genetic selection for female fertility to ensure your herd’s reproduction continues to improve.

Daughter pregnancy rate (DPR), heifer conception rate (HCR) and cow conception rate (CCR) all provide a genetic basis for creating more fertile females. Emphasizing one, or any combination, of these traits in your customized genetic plan means you are breeding a next generation of cows with a greater ability to conceive.

Daughter pregnancy rate is defined as the number of non-pregnant cows that become pregnant within each 21-day period. When a sire has a DPR of 1.0, it means that his daughters are 1% more likely than the average herdmate to become pregnant in a given 21-day window. And each added point of DPR equates to 4 fewer days open.

When referring to HCR and CCR, these traits are defined respectively as a virgin heifer or lactating cow’s ability to conceive. For each of these traits, when a sire has a value of 1.0, it means that his daughters are 1% more likely to conceive than daughters of a sire with an HCR or CCR of 0.0. While DPR is a slightly different calculation than HCR or CCR, all three are a way to measure the fertility of the female herself.

It’s clear to see that the high DPR sires, do indeed, create daughters that become pregnant more quickly than the daughters of low DPR sires.

Lactation 1 cows# of cowsAverage Sire DPRActual Preg rate
Top 25% for highest Sire DPR1742.327%
Bottom 25% for lowest Sire DPR137-1.120%
Difference3.47%

IMPROVE FERTILITY RESULTS – NOW AND INTO THE FUTURE

If your goal is to create more Alta 4-EVENT COWS through improved fertility and reproduction, don’t miss out on the impact that genetics can make in taking you to that next level. Despite the low heritability of fertility traits like DPR, these two tips will help improve your herd’s reproductive results now and into the future:

  1. Improve conception rates now by using sires with the high fertility CONCEPT PLUS rating to boost your herd’s current conception rates.
  2. Improve fertility for the future of your herd by including DPR and/or HCR and CCR in your customized genetic plan to create a next generation of more fertile females.
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New trait from CDCB: Early First Calving

As part of April 2019 the Council on Dairy Cattle Breeding (CDCB) is releasing a newly evaluated trait: Early First Calving (EFC).

Because genetics and management both play a role in heifer development, having the ability to select for animals that calve in earlier can help increase your herd’s profitability.

Heifer rearing accounts for 15-20% of the total cost of milk production. This includes feed, housing, labor, and health care costs. Raising a heifer can cost an estimated $2.50 a day to raise a heifer. So decreasing the age at first calving can add up to substantial savings. Another factor to consider is how the age at first calving affects the heifer’s income after she joins the milking herd.

Early First Calving will be expressed as age in days at first calving.

Animals expected to transmit genetics that decrease the age at first calving will have a positive EFC value, because calving younger is seen as more beneficial. Animals transmitting genetics that increase the age at first calving will have a negative EFC value, because calving at an older age is less beneficial.

If you’re looking to select for EFC as part of your genetic plan, here’s what you’ll see. A bull with a PTA of +2 days for EFC has genetics estimated to reduce his daughter’s age at first calving by two days compared to a bull with a PTA of 0 for EFC. The heritability of EFC is low, at 2.3%. The average reliability for young genotyped Holsteins is about 66% and for Jereys, it’s about 51%.

As with the release of any new trait, it’s important to keep your herd’s current situation and future goals in mind. Ask yourself how you’re paid for milk, why cows leave your herd, and what type of cows fit your environment in order to emphasize only the traits that will most affect your farm’s bottom line.

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Proof terminology explained

The letters, numbers and acronyms on a proof sheet can be complicated. Here, we break down the meaning and explanation of the proof indexes, traits and terminology.

Selection indexes

Genetic selection indexes are set by national organizations or breed associations. Genetic indexes help dairy producers focus on a total approach to genetic improvement, rather than limiting progress by single trait selection.

However, each farm is unique, with different situations and future plans. With that in mind, it’s important to understand what traits are included in each industry standard index. When you know what’s included, you can more effectively evaluate if the index truly matches your farm’s goals.

TPI = Total Performance Index

TPI is calculated by the Holstein Association USA (HA-USA) and includes the following trait weightings.

TPI Formula

PRODUCTION TRAITS = 46%

46PRODUCTION TRAIT WEIGHTS
19Pounds of protein
19Pounds of fat
8Feed efficiency

HEALTH TRAITS = 29%

29HEALTH TRAIT WEIGHTS
13Fertility Index
5Productive Life
-4Somatic Cell Score
3Cow Livability
2CDCB Health Trait Index
1Daughter Calving Ease
1Daughter Stillbirth

CONFORMATION TRAITS = 25%

25CONFORMATION TRAIT WEIGHTS
11Udder Composite
8PTA Type
6Foot & Leg Composite

NM$ = Net Merit Dollars

NM$ is a genetic index value calculated by the Council on Dairy Cattle Breeding (CDCB). It describes the expected lifetime profit per cow as compared to the reference base population born in 2015. Trait weightings are generally updated approximately every five years and include emphasis on the following traits. The current trait breakdown is in place as of August 2018. Please note that trait weights are rounded to the nearest percentage.

Net Merit$ breakdown

PRODUCTION TRAITS = 45%

45PRODUCTION TRAIT WEIGHTS
27Pounds of fat
17Pounds of protein
-1Pounds of milk

HEALTH TRAITS = 40%

40HEALTH TRAIT WEIGHTS
12Productive Life
7Cow Livability
7Daughter Pregnancy Rate
5Calving Ability
-4Somatic Cell Score
2Health Trait Index
2Cow Conception Rate
1Heifer Conception Rate

CONFORMATION TRAITS = 15%

15CONFORMATION TRAIT WEIGHTS
7Udder Composite
-6Body Weight Composite
3Foot & Leg Composite

CM$ = Cheese Merit Dollars

CM$ is an index calculated to account for milk sold to be made into cheese or other dairy products. The current CM$ index was adjusted in August 2018 and the following trait weights are considered. Please take note that trait weights shown have been rounded to the nearest percentage.

Cheese Merit weights

PRODUCTION TRAITS = 52%

52PRODUCTION TRAIT WEIGHTS
21Pounds of protein
23Pounds of fat
-8Pounds of milk

HEALTH TRAITS = 35%

35HEALTH TRAIT WEIGHTS
11Productive Life
6Cow Livability
6Daughter Pregnancy Rate
4Calving Ability
-4Somatic Cell Score
2Health Trait Index
1Cow Conception Rate
1Heifer Conception Rate

CONFORMATION TRAITS = 13%

13CONFORMATION TRAIT WEIGHTS
6Udder Composite
-5Body Weight Composite
2Foot & Leg Composite

FM$ = Fluid Merit Dollars

FM$ is an index calculated by CDCB. It is best suited to dairies operating in a fluid milk market that are paid for total pounds of milk produced (as opposed to payment for components). The current FM$ index was adjusted in August 2018 and the following trait weights are considered.

PRODUCTION TRAITS = 46%

46PRODUCTION TRAIT WEIGHTS
27Pounds of fat
18Pounds of milk

HEALTH TRAITS = 38%

38HEALTH TRAIT WEIGHTS
12Productive Life
7Cow Livability
7Daughter Pregnancy Rate
5Calving Ability
-2Somatic Cell Score
2Health Trait Index
2Cow Conception Rate
1Heifer Conception Rate

CONFORMATION TRAITS = 16%

16CONFORMATION TRAIT WEIGHTS
8Udder Composite
-5Body Weight Composite
3Foot & Leg Composite

GM$ = Grazing Merit Dollars

GM$ is an index calculated by CDCB to most heavily weigh the traits that affect grazing herds preferring seasonal calving. The current GM$ index was adjusted in August 2018 and the following trait weights are considered.

PRODUCTION TRAITS = 38%

38PRODUCTION TRAIT WEIGHTS
23Pounds of fat
14Pounds of protein
1Pounds of milk

HEALTH TRAITS = 46%

46HEALTH TRAIT WEIGHTS
18Daughter Pregnancy Rate
7Productive Life
5Cow Livability
4.5Calving Ability
-3.5Somatic Cell Score
4Cow Conception Rate
2Heifer Conception Rate
2Health Trait Index

CONFORMATION TRAITS = 16%

16CONFORMATION TRAIT WEIGHTS
7Udder Composite
-6Body Weight Composite
3Foot & Leg Composite

GENERAL PROOF TERMS

CDCB:
Council on Dairy Cattle Breeding

Calculates production and health trait information for all breeds

MACE:
Multiple-trait across country evaluation

Denotes that a bull’s proof evaluation includes daughter information from multiple countries

PTA:
Predicted transmitting ability

The estimate of genetic superiority or inferiority for a given trait that an animal is predicted to transmit to its offspring. This value is based on the animal’s own records and the records of known relatives.

EFI:
Effective future inbreeding

An estimate, based on pedigree, of the level of inbreeding that the progeny of a given animal will contribute in the population if mated at random

GFI:
Genomic future inbreeding

Similar to EFI, an animal’s GFI als predicts the level of inbreeding he/she will contribute in the population if mated at random. Yet, GFI provides a more accurate prediction. It takes into account genomic test results and the actual genes an animal has.

aAa:
an independent method for making mating decisions

DMS:
a separate, independent method for making mating decisions

 

PRODUCTION TRAITS

PTAM:
Predicted transmitting ability for milk

PTAP:
Predicted transmitting ability for protein

PTAF:
Predicted transmitting ability for fat

PRel:
the percent reliability of a sire’s production proof

 

HEALTH & FERTILITY TRAITS

PL:
Productive Life

Measured as the total number of additional or fewer productive months that you can expect from a bull’s daughters over their lifetime. Cows receive credit for each month of lactation, with more credit given to the first months around peak production, and less credit given for months further out in lactation. More credit is also given for older cows than for younger animals.  

LIV:
Cow livability

Measure of a cow’s ability to remain alive while in the milking herd.

SCS:
Somatic cell score

The log score of somatic cells per milliliter.

DPR:
Daughter pregnancy rate

Daughter Pregnancy Rate is defined as the percentage of non-pregnant cows that become pregnant during each 21-day period. A DPR of ‘1.0’ implies that daughters from this bull are 1% more likely to become pregnant during that estrus cycle than a bull with an evaluation of zero. Each increase of 1% in PTA DPR equals a decrease of 4 days in PTA days open.

HCR:
Heifer conception rate

A virgin heifer’s ability to conceive – defined as the percentage of inseminated heifers that become pregnant at each service. An HCR of 1.0 implies that daughters of this bull are 1% more likely to become pregnant as a heifer than daughters of a bull with an evaluation of 0.0

CCR:
Cow conception rate

A lactating cow’s ability to conceive – defined as the percentage of inseminated cows that become pregnant at each service. A bull’s CCR of 1.0 implies that daughters of this bull are 1% more likely to become pregnant during that lactation than daughters of a bull with an evaluation of 0.0.

MAST:
expected resistance of an animal’s offspring to clinical mastitis

Daughters of a bull with a MAST value of +1.0 are expected to have 1% fewer cases of mastitis than the average herdmate.

METR:
expected resistance of an animal’s offspring to metritis

Daughters of a bull with a METR value of +1.0 are expected to have 1% fewer recorded cases of metritis than the average herdmate.

KET:
expected resistance of an animal’s offspring to ketosis

Daughters of a bull with a KET value of +1.0 are expected to have 1% fewer recorded cases of ketosis than the average herdmate.

DA:
expected resistance of an animal’s offspring to displaced abomasum

Daughters of a bull with a DA value of +1.0 are expected to have 1% fewer recorded cases of displaced abomasum than the average herdmate.

MFEV:
expected resistance of an animal’s offspring to milk fever (hypocalcemia)

Daughters of a bull with a MFEV value of +1.0 are expected to have 1% fewer recorded cases of milk fever than the average herdmate.

RP:
expected resistance of an animal’s offspring to retained placenta

Daughters of a bull with a RP value of +1.0 are expected to have 1% fewer recorded cases of retained placenta than the average herdmate.

HRel:
the reliability percentage for a sire’s health traits

 

CALVING TRAITS

SCE:
Sire calving ease

The percentage of bull’s calves born that are considered difficult in first lactation animals. Difficult births include those coded as a score of 3, 4 or 5 on a scale of 1-5.

DCE:
Daughter calving ease

The percentage of a bull’s daughters who have difficult births during their first calving. Difficult calvings are those coded as a 3, 4 or 5 on a scale of 1-5.

SSB:
Sire stillbirth

The percentage of a bull’s offspring that are born dead to first lactation animals.

DSB:
Daughter stillbirth

The percentage of a bull’s daughters who give birth to a dead calf in their first lactation.

 

TYPE / CONFORMATION TRAITS

PTAT, UDC and FLC are all calculated by the Holstein Association USA.

PTAT:
Predicted transmitting for type – referring to the total conformation of an animal

UDC:
Udder composite index; comprised of the following linear trait weights:

19% Rear udder height

17% Udder depth

-17% Stature

6% Rear udder width

13% Fore udder attachment

7% Udder Cleft

4% Rear teat optimum

4% Teat length optimum

3% Front teat placement

FLC:
Foot and leg composite index; comprised of the following trait weights:

58% foot and leg classification score

18% rear legs rear view

-17% stature

8% foot angle

TRel = the percent reliability for a sire’s conformation/type proof

 

GENETIC CODES

POLLED

PO:
observed polled

PC:
genomic tested as heterozygous polled; means 50% of offspring are expected to be observed as polled

PP:
genomic tested as homozygous polled; means that 100% of offspring are expected to be observed as polled

COAT COLOR

RC:
carries the recessive gene for red coat color

DR:
carries a dominant gene for red coat color

RECESSIVES & HAPLOTYPES

These codes, or symbols representing the code, will only show up on a proof sheet if an animal is a carrier or test positive for one of the following. The acronyms denoting that an animal is tested free of a recessive will only show up on its pedigree.

BY:
Brachyspina

TY:
Tested free of brachyspina

BL:
BLADS, or Bovine leukocyte adhesion deficiency

TL:
Tested free of BLADS

CV:
CVM or Complex vertebral malformation

TV:
Tested free of CVM

DP:
DUMPS, or Deficiency of the uridine monophosphate synthase

TD:
Tested free of DUMPS

MF:
Mulefoot

TM:
Tested free of mulefoot

HH1, HH2, HH3, HH4, HH5:
Holstein haplotypes that negatively affect fertility

HCD:
Holstein haplotype for cholesterol deficiency

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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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Introducing JPI 2017

With April proofs comes the introduction of JPI 2017 to replace the previous JPI 2015.

Jersey Performance Index™ (JPI™) is the American Jersey Cattle Association’s (AJCA) strategy for increasing lifetime net income.

The AJCA took into account the following three key fundamentals for Jersey sustainability while determining JPI 2017. These fundamentals were determined by a Capper and Cady 2012 study comparing the environmental impact of Jersey and Holstein milk for cheese production.

  • Increase production
  • Maintain body size
  • Maintain or improve components

What is the purpose of the new JPI 2017?

  • Increase milk production
  • Improve the density of milk
  • Moderate body weight
  • Improve herd life, fertility, udder health, and functional conformation

What new traits have been added to the formula? 

  • CFP Milk
    • Every 100 pounds of PTA milk needs 8.8 pounds combined fat and protein
    • Pounds of Milk = CFP/0.088
    • CFP Milk = PTA Milk – Pounds of Milk
    • If CFP Milk is positive, the JPI™ value is negative because there is more water than components
  • Body Weight Composite (BWC)
    • Proxy for feed efficiency, and replaces body size composite
  • PTA Cow Livability
    • Measures a cow’s ability to stay alive on the farm

What is the impact of JPI 2017? 
  • Significant drops in JPI for all industry sires.
    • The upper JPI threshold will drop from about 300 JPI to 230 JPI, and all industry bulls will drop in their JPI value.
  • Significant rescaling, similar to a base change.
    • We see genomic sires JPI™ values fall 38 points on average
  • Some re-ranking – in both directions
    • Some minor and some significant

Here is a full breakdown of the new JPI 2017. In the simplest terms, JPI 2017 has five percent less weight on production and five percent more weight on type traits as compared to JPI 2015. But there’s more to it than that. The following traits are new additions to the JPI 2017 formula.

Image comparing the genetic index weights on production, health and type traits for JPI 2015 versus JPI 2017

JPI 2015JPI 2017
Protein4330
Fat1515
CFP Milk-8
PRODUCTION TOTAL WEIGHT5853
Productive life106
Cow livability-4
Somatic cell score66
Daughter pregnancy rate77
Cow conception rate22
Heifer conception rate22
HEALTH TOTAL WEIGHT2727
Stature-0.6-0.9
Strength-0.1-3.4
Dairy form2.0
Rump angle-0.1
Rump width0.2-0.7
Rear Legs -0.1-0.1
Foot angle0.10.1
Fore udder2.62.4
Rear udder height1.91.8
Rear udder width0.10.1
Udder cleft2.11.9
Udder depth5.14.7
Teat placement1.00.9
Teat length-1.0-0.9
TYPE TOTAL WEIGHT1520
No time is better than now to sit down and review your genetic plan and strategy. When you set your own unique herd index, you will maximize genetic gains in the areas that most impact your farm’s profitability.
Focus on your goals and work with your trusted Alta advisor to create a customized index as an investment in your future.
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The top three ways to make genetic progress

Progress is a good thing…

And that rings true as much with genetics as in any area on your dairy operation.

In the simplest of terms, genetic progress is making better cows, faster. Before we can share tips on how to make genetic progress in your herd, it’s important to understand the actual equation for genetic progress. It depends solely on four factors.

Genetics Progress Equastion

Selection intensity:  the proportion of the population selected to become parents.

Do you use artificial insemination rather than a herd bull? Do you code cows with poor production, udders, or feet and legs as Do Not Breeds? Do you flush your best females and use your low end animals as embryo transfer recipients?

A yes to any of these questions means you are increasing selection intensity on your dairy by simply being more selective on which males and females you choose to be parents of your next generation of cattle.

Accuracy of selection: the average reliability of genetic evaluations used to make decisions about parents of the next generation of animals.

In the world of genetics, accuracy is primarily measured in terms of reliability. And in terms of genomics, accuracy is a function of the size of the reference population that is used to compare against a genomic-tested animal. Currently, the genomic reliabilities for production traits are often 70% or greater in North American Holsteins, which is twice the level of reliability that we used to achieve with traditional parent averages computed based on pedigrees.

Genetic variation: the degree of difference that exists between the best animals for a given trait and the worst animals for that trait.

If all animals were clones of one another, the variation among animals would be zero, and the opportunity to make genetic progress in any and all traits would cease to exist. Different genetic makeups and pedigrees lend way to variation among animals.

Genetic variation can be quite different from one herd to another. A herd that has used a focused genetic plan to select AI service sires for many years will have much less variation than a herd that has purchased animals with unknown pedigrees.

In comparison with other factors in the equation for genetic progress, little can be done to increase the amount of genetic variation within a given population. However, since inbreeding decreases the effective population size, by avoiding overly excessive inbreeding levels we can prevent a decrease in genetic variation.

Generation interval: measured as the average age of the parents when an offspring is born.

As the prevalence of genomic sires has increased over the past five years, the generation interval has been on the decline. Now, instead of waiting a minimum of 4.5 years to use traditional progeny-tested bulls, both farms and AI companies can more confidently make use of genomic-tested bulls in their on-farm AI programs or as sires of sons by the time an elite sire is roughly one year of age, decreasing the generation interval on the paternal side by more than three years.

So to put these factors of the genetic progress equation into play on your farm, what management strategies can you implement to make the most genetic progress possible?

1. Set your own genetic plan

You can make genetic progress in a variety of ways. First and foremost, you want to ensure you’re making progress in the right direction. To do this, set your own customized genetic plan, placing your selection emphasis only on the traits that matter to you – whether that’s production, health or conformation, and any specific traits within those categories. This way, you’ll not only make progress, but it will be in the direction of your goals in order to maximize progress and profit on your dairy.

2. Use the best bulls to suit your genetic plan

Once you’ve set your genetic plan, select the best bulls to fit that plan. You can take advantage of the amplified selection intensity put into place by your AI company, knowing that from the thousands of bulls they are genomic testing each year, they select only the best of the best to be parents of the next generation.

If you also select only the elite sires that fit your genetic plan from your AI company you maximize your on-farm selection intensity as compared to using just any cheaper bull off the proof list.

3. Utilize a group of genomic proven sires as part of your genetic program   

There is no need to fear genomic-proven sires. By making use of the best and brightest genomic-proven sires available, you make strides in all areas of the genetic progress equation. You decrease the generation interval as compared to waiting to use daughter-proven sires. You also step up the genetic selection intensity on your farm.

The accuracy gained from an ever-growing reference population of genomic-tested males and females is another benefit of selecting from a group of genomic-proven sires. And by utilizing a group of these sires, rather than one individual, you can maximize the genetic variation when pedigrees differ among them.

You can take these tips one step further using a strategic approach with the females in your herd. However, these are the top three, simple ways to make genetic progress on your dairy.

If you implement these steps, you will increase selection intensity, accuracy and variation, while decreasing generation interval. The progress you make will be in the direction of the goals you’ve set for your farm, so you can capitalize on the genetic profit and progress potential.

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