Ewen Ferguson OABP/OABA Guelph April 29-2004 Maximizing Dairy Farm Efficiency.
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Transcript of Ewen Ferguson OABP/OABA Guelph April 29-2004 Maximizing Dairy Farm Efficiency.
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Ewen Ferguson
OABP/OABA
Guelph
April 29-2004
Maximizing Dairy Farm Efficiency
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Troubleshooting Farm Problems with Records
Not always a problem-validation
Records will allow you to ask questions—not give answers
Be careful of snapshots—look for history
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Records
Easily accessible
Easily understood
Meaningful—believable
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Record Use
Monitor/troubleshootProduction/componentsHealth/cullingUdder healthReproductionBenchmarking—yourself/others
List generatorTo do lists
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DC 305
How I use to monitor monthlyThings I look atHow I make it easy
How I use to troubleshootLook at exceptionsDevelop action points
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Monthly overview:Things I look at
Monitor (monitor)Test day summary (tdsum1)“Feeding guide”Herd Repro Inventory305M graph (grrh305)Test day SCC (highscc)
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DIM, peak, components, persistency
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Working list: works well in tie stall barns
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Making it easy
Linked reports!!!
Single keystroke
Office staff can generate reports
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monitor!tdsum1!grrh305!highscc
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Troubleshooting
Monitor/troubleshootProduction/componentsHealth/cullingUdder healthReproductionBenchmarking—yourself/others
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Production/Components
Production: (over time / test day)Herd variationsLactation Group variationsIndividual variations
Components:High/Low BFRatio
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Herd production trends over time (average)
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Lactation group trends over time (average)
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Production (test day)
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Fat and Protein % over time (average)
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Butterfat % (test day)
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BF Ratio (test day)
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Sub Clinical Ketosis (Duffield)
Gold Standard—Serum BHBA>1400umol/l
Ketotest100umol/L BHBA in milk (80% sens/spec)
Goal: <20% SCKLook at proportion of cows with a
protein: fat ratio <.75 on 1st DHI test and BCS > 4
High Risk Herds: >40% PFR <.75>10% BCS >4
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% Butterfat distribution (graph pctf)
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Health/Culling
Many health events can be recordedWe do a very poor jobMissing a large opportunity to
improve herd healthNeed to establish guidelines and
disease definitionNeed to standardize
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EGRAPH
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Events
Poorly utilizedGet CSR’s to enter (or on farm)
Close the loopGet advisor to discuss/commentVery powerful motivator
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L %id age dim milk pctf pctp scc disp for (ec=14) (ec=15) dim<305 age>12 by stage\da
When and why do cows leave the herd?
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25% of cows leaving dairy herds in Minnesota
between 1999 and 2001, did so in the 1st 60 days.
Godden 2003
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Udder Health
Sub clinicalExcellent reportsPassive
ClinicalLike events—under utilizedActive—someone needs to record and enterNeed to standardize
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OK
New Chronic
Cured
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New<10%
Chronic <10%
OK 70%
Cured 70% Dry Cow
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OK
Cured Chronic
New
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Cured
Chronic
NewOK
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Reproduction
Excellent reports but… under-utilized
Pregnancy rates not well understood
Need to enter accurate dataNeed to enter all breedings and
confirmed pregnanciesImportant to monitor
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Repro Commands
Bredsum\ev50 for lact>0\d280“v” sets VWPReportGraphAdd “r” for regression graph (evr)
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Reproduction Goals
50% pregnant by 3 cycles
75% pregnant by 6 cycles
<30% open after 10 cycles after VWP
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98 5456
75 6579
50 75107
25 84178
When 50% not yet bred (75 days) or Open (107 days)
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*bredsum
Can benchmark your herdsWill count herds that don’t enter
dataNeed to work with sub-groups
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Summary
DC 305 –powerful toolMonitorEvaluateTroubleshoot
Quality and amount of data importantNeed more/better repro dataNeed more event/disease data
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Information Overload
Sometimes too much information
Important to gather just what you need
Important to use it, once gathered