The TMR feeding programershad.moa.pna.ps/uploads/file/Animal Feedings/TMR... · The Feeding...
Transcript of The TMR feeding programershad.moa.pna.ps/uploads/file/Animal Feedings/TMR... · The Feeding...
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The TMR Feeding Program
Dr. Jim LinnUniversity of Minnesota
St. Paul, Minnesota
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Keys to a Successful Dairy Feeding Program
1. Properly formulated rations 2. Skilled and conscientious people feeding3. Mixing and feeding accurate amounts of ration4. High quality feeds5. Good communication between technical
experts and dairy manager6. Good record keeping7. Good working equipment
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What is a TMR?
Complete mix of all feed ingredients� Forages� Grains� Byproducts� Protein feeds� Minerals and Vitamins� Feed additives – yeast culture
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Why Feed a TMR?
Increase milk productionDecrease feed costsImprove cow healthAbility to feed feeds that are: � Hard to feed individually� Fed in small amountsDeliver consistent ration to cow every day
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The TMR EquationFormulated
Ration
FeedIngredients
=
MilkProduction
CowHealth
$
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Cow NutrientRequirements
FiberProteinEnergy
Minerals
Ration FormulationRATION – Lactation – 35 kg/day
Kg/day/cowHAY 3.6Corn silage - 35% DM 9.7Haylage - 40% DM 18.2CORN 8.4COTTONSEED,FZ 2.5PROTEIN MIX 3.8
DRY MATTER NUTRIENTANALYSIS
Wet Feed Intake kg 46.2Ration DM % 48.7DM Intake kg 22.5
Crude Protein % 16.5NDF Fiber % 34.6NDF From Forage % 23.8NFC % 34.9Fat % 5.3TDN % 70.3NE Lactation Mcal/kg 1.63
Calcium % .93Phosphorus % .39Magnesium % .38Potassium % 1.33Salt % .46Iodine ppm 1.51Selenium ppm .34Vitamin A, IU/ day 203437Vitamin E, IU/day 990
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Formulating the Ration
Identify group of cows to be fed� Milk production� Days in milk
� Dry Matter (DM) Intake
Minimize variation in the group� Group cows that are similar in milk
production and DM intake
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Lactating cow groups1. Fresh Cow
� 1 to 21 days in milk
2. 1st Lactation cows 3. High Production - older cows
� 21 to 180 days in milk
4. Mid-lactation – older cows � 180 to 250 days in milk
5. Late Lactation � Older and 1st lactation cows� 250 days in milk to dry off
Cow Groupings for TMR
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Lactating cow groups1. Fresh Cow
� Low DM intake� Dry forage (2 – 3 kg/cow/day)
2. 1st Lactation cows � Smaller cows � Low DM intake� Slower to reach peak milk production and DM intake� Persistent milk production and DM intake
3. High Production - older cows (21- 180 days in milk)� Larger cows -� Reach peak milk production (> 40 kg/day) 45 days in milk� Reach peak DM intake (25 – 30 kg/day) by 60 days in milk� Breeding group
Cow Groupings - Variations
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Lactating cow groups1. Mid-lactation – older cows
� 180 to 250 days in milk� Pregnant cows� Lower DM intake and milk production than high
production group
2. Late Lactation (250 days in milk to dry off)� Older and 1st lactation cows similar DM intake and
milk production� Avoid over conditioning of cows� High forage – medium energy ration
Cow Groupings - Variations
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5
10
15
20
25
30
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46WEEK OF LACTATION
DRY
MAT
TER
INTA
KE
(kg/
day)
Dry Matter Intake(Multiparous Cows)
Dry Matter Intake(Primiparous Cows)
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Dry cow groups1. Far Off dry cows
� 220 to 260 days pregnant� High forage TMR
2. Close-up or Pre-Fresh cows� 2 to 3 weeks before calving � Low DM intake – 10 kg/day� High fiber, nutrient dense TMR• 3 kg gain• 2-3 kg good quality forage• Minerals, Feed Additives and vitamins
Cow Groupings for TMR
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The Feeding ObjectiveFormulated ration
Ration Cows Eat
Ration MixedRATION – Lactation – 35 kg/day
Kg/day/cowHAY 3.6Corn silage - 35% DM 9.7Haylage - 40% DM 18.2CORN 8.4COTTONSEED,FZ 2.5PROTEIN MIX 3.8
DRY MATTER NUTRIENT ANALYSISWet Feed Intake kg 46.2Ration DM % 48.7DM Intake kg 22.5
Crude Protein % 16.5NDF Fiber % 34.6NDF From Forage % 23.8NFC % 34.9Fat % 5.3TDN % 70.3NE Lactation Mcal/kg 1.63
Calcium % .93Phosphorus % .39Magnesium % .38Potassium % 1.33Salt % .46Iodine ppm 1.51Selenium ppm .34Vitamin A, IU/ day 203437Vitamin E, IU/day 990
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�Consistency is the keyThe same AMOUNT of
the same MIX at
the same TIME each day.
TMR Feeding Goal
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Mixing the TMR
Dry matter of feeds – feed amountsOrder of ingredient additionMixer capacityMixing time
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Dry Matter100-% moisture = % DM
Nutrients are contained in DM� Ration formulated on DM� Cows consume DM
TMR ingredients are as fedDM errors result in over or under feeding as fed feeds
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Check Forage DM
Determine DM of forage at least once per week.
Adjust amounts of forage in TMR when DM changes more than 2% units
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Common TMR Mixing ErrorsScale and Weighing Inaccuracies
Scale not accurately weighing
Feeder not accurately weighing feed amounts
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TMR Mixing - Adding Ingredients
Auger or Reel MixersIngredient Order � Grains and proteins� Small inclusion feeds
� Minerals, vitamins� Feed additives
� Forages� Chopped hay� Ensiled forages
Maximum 200 kg long stem forage in 4500 kg TMR mix, about 2 kg/cow/dayCHOP HAY BEFORE ADDING
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TMR Mixing - Adding Ingredients
Vertical or Screw mixersIngredient order� Long dry forage� Grains and proteins� Small inclusion feeds
� Minerals, vitamins� Feed additives
� Ensiled forages
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Common TMR Mixing ErrorsOver Filling Mixers
DO NOT OVERFILLResults in � Incomplete
mixing� Sorting of feeds� Cows not getting
balanced ration
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Common TMR Mixing ErrorsTMR Mixer Capacity
TMR density � 0.2 to 0.25 kg per cubic meter� Average is 0.22 kg per cubic meter
TMR mixer capacity per cow� With 10% long dry forage - 0.2 cubic meters/cow� No dry long forage – 0.14 cubic meters/cow
Best mixing capacity – 70 to 80% of maximum
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Common TMR Mixing ErrorsIncorrect Mixing Times
Incomplete mixing� General guide is 3 to 5 minutes after
last ingredient added
Over mixing� Reduces particle size
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RationRationPhysicalPhysical
FormForm
Maintain Rumen Maintain Rumen ““matmat””•• stimulate rumenstimulate rumen
contractionscontractions•• maintain muscle tonemaintain muscle tone•• stimulate cudstimulate cud
chewingchewing•• buffer the rumenbuffer the rumen
Optimize Rumen FermentationOptimize Rumen Fermentation•• stimulate appetite stimulate appetite •• max production of VFAmax production of VFA’’ss•• max microbial protein max microbial protein
Keys to Good TMR Mixing and Feeding
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Ration Physical FormRation Physical FormPhysical characteristics of the ration that can Physical characteristics of the ration that can greatly influence performance greatly influence performance
��Physical Characteristics are affected by:Physical Characteristics are affected by:�� Amount of forageAmount of forage�� Quality of forage Quality of forage �� Type of forageType of forage�� Level of NDFLevel of NDF�� Moisture of ration Moisture of ration �� Length and shape of particlesLength and shape of particles
�� TMR mixing timeTMR mixing time
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Sieve 3 Boxes 4 Boxes
------------%----------Upper Sieve 6 - 8 6 - 10 Middle Sieve >50 30 - 50 Lower Sieve ---- 30 to 50 BottomPan <40 <20
TMR Particle Size Recommendations
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TMR Ration – Particle Size
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Over Mixing - Example
How can we tell? - Penn State Particle Separator
Actual Goal� Top (Long Fiber) 4.5% 6-8%
� Middle (Short Fiber) 39.0% 40-50%
� Bottom (Fines) 56.5% <50%
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TOO FINE-OVERMIXINGSYMPTOMS� Milk Production Decrease� Milk Fat:Protein Inversions� Consistently Loose Manure� Lack of Cud Chewing� Increase in free choice salt or buffer consumption� Eating of Bedding, Wood� Variable DM intake� Late Lactation Displaced Abomasums� Off-feed Cows� Lameness
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TMR Evaluation - Too fine?
Check mix time- decrease if necessaryDry long forage is very low in moisture –brittle and chops easily: reduce mix timeMix order - add dry long forages lastNot enough forage in diet - check� Correct ration formulation� Forage moisture,
As DM of forage decreases, less forage DM is being fed
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Symptoms of Under-Mixing
� Clumping of ingredients such as hay, haylage
� Cows sort feeds and slug fed grain� Inconsistent - loose manure� Off-feed cows� Variable DM intake� Lower fat test� Lameness
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Under Mixing –Too coarse
How Can we tell - Penn State Particle Separator
Actual Goal� Top (Long fiber) 15.4% 6-8%� Middle (Short fiber) 55.5% 40-50%� Bottom (Fines) 29.1% <50%
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TMR Evaluation - Too coarse?
Check mix time - increase if not over 6 minutes Dry forages over 15% moisture don’t mix well without chopping before mixingCheck wear on mixer knives- change if worn, add more knives if neededMix order- add dry coarse forage earlier if possibleToo much long coarse forage in mixerMay require tub-grinding all dry forage if it is very coarse
ProperMixing
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Feeding the TMR Times per Day
Number of times to feed per day
• Optimal – twice per day
• Once per day okay • Cool weather• Good feed push in
• Minimal benefit to more than twice per day
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Feed Bunk ManagementEvaluating the TMR Mix
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Uniform TMR Distribution
XX
XXXX
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Good feed bunk management:� Cows have access to feed at least 18-20
hours per day
� Cows have adequate bunk spacea. 45 to 60 cm per milk cowb. 60 to 90 cm dry and transition cowsc. 45 cm for heifers
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Cows eat best off a smooth surface
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Good feed bunk management:
Push feed up at least 5 times per day if TMR is fed once per day.
If they can not reach the feed,
They can not eat it
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71 cm
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Good feed bunk management:
24 hour refusal weight be less than 3% of fed TMR
Refusals should look like original TMR
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Cow Goal:
Unmix theTMR mix
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Good feed bunk management:
Do not give cows the opportunity to sort feed� Push up feed often� Chop forages� Adequate moisture
in ration
SORTING RESULTS IN SYMPTOMS COMMON TO BOTH UNDER AND OVER MIXING OF TMR
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Feed Intake
Measure daily
Refusal
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Weekly Feeding RecordGroup: High Week of:Date Feeder
initialsTMR Fed,
kgTime
fedWeighback,
kgCownumber
Feedcomments
Mon JL 2948 5:45 105 69Tues
Wed
Thur
Fri
Sat
Sun
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Feed Intake
Per cow amounts � TMR = Formulated Ration
When amounts not equal� Check forage moisture� Check number of cows fed TMR mix � Reformulate ration
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Daily As Fed Intake (lb)
80859095
100105110115120125130135140
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
Days
Inta
ke (l
b)
High Variation Low Variation
GOAL IS TO MINIMIZE VARIATION
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TMR Record ManagementRecord Management
Daily feed information feeders should recorda. Dateb. Feeder namec. Actual total amount of ration mixed
and fed per pen or groupd. Weighback amount from pen/groupe. Number of animals in pen/groupf. Time fed
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Adjusting TMR Feed IntakesAdjusting amount of TMR fed
Change all feeds proportionally� Up or down
Maximum adjustment� 3 kg/cow� 8% of total weight
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Forage Management
Feeding fresh, unspoiled forages every day is essential to TMR success
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Forage Management
Manage the feeding face of the bunker or pile
WANTED
Smooth Surface
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NDF44.5%
41.2%
36.6%
Smooth Faces Minimize DM and Nutrient Deviations Within a Silo
20%variation in NDF from
top to bottom
From Bill Stone, NY
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Good Face Managementand
Top Cover
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Silage Management� Keep face of pile smooth and straight
� Feed a minimum of 15 cm off face daily
� Remove no more than 1 m of top cover at a time
� Remove and discard moldy or rotten silage before shaving pile
� Inform technical expert of concerns or changes
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In SummaryA correctly formulated and fed TMR will� Provide excellent nutrition for the cow� Minimize feed cost� Optimize cow health and production
Management essentials for TMR Feeding� Correctly formulated ration� Quality forage and other feed ingredients� Accurate mixing of the TMR� Monitoring feed intakes� Good bunk management
� Particle sizing � Feed availability – push ups
� Good feed data recording
Communication between feeder, nutritionist and dairy manager
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Lets Go Feed The Cows!
THANK YOU