2. 2
What weight should I market at?
• Not a one size fits all answer
• Too many variables at play
• Disclaimer:
– All data and grids contained in this presentation are
completely fictional. The actual numbers presented here
will not apply to your situation.
3. 3
How Heavy Can I Go…?
• Genetics
• Stocking Density
• Marketing Strategy
• Space Needs
• Seasonal impacts
• Feed Cost
• Carcass Price
• Packer
• Transportation
• Risk
– Will not include discussion on risk management
4. 4
Genetics
• Commercial vs. Maternal vs. Specialty
• What is the growth potential?
• What is the FC at different weights?
• What happens from a lean perspective?
5. 5
Genetics
• What does a 200 lb carcass look like? 230lb?
• What is your animal depositing at these weights?
6. 6
Stocking Density
• Initial stocking density will influence late
finishing performance
– K-value or K-factor
– Caused by declining amount of space available
• This is also responsible for the increase in
growth and feed efficiency after first cuts are
removed
7. 7
Stocking Density
• K-Values (Gonyou, et. al.; 2006)
– Performance declines when pigs reach a given weight per unit of space
– 0.033 meters2/kg metabolic body weight (aproximately 26-28 lbs/ ft2)
– Pigs stocked at 6.5 ft2 will hit this at a lighter weight than pigs stocked at
7.5ft2
8. 8
Stocking Density
• Initial stocking density and the subsequent decrease in
performance may dictate when to take first cuts
• In order to take pigs heavier, initial stocking density
may need to be adjusted
• Need to balance stocking density, target weight, and
performance
Estimated weight at 27 lbs per ft2
and different initial stocking densities
Stocking Density (ft2
/pig) 7.9 7.6 7.3 7.0 6.7 6.4 6.1
Average Pig Weight (lbs) 231 218 205 193 181 169 157
Top 20% Aveerage Weight (lbs) 269 254 239 224 210 196 183
9. 9
Marketing Strategy
• # of cuts / site visits
– Precision vs. Simplicity
– Biosecurity
• Acceptable Variation
– How narrow is the target on my grid?
10. 10
Space Needs
• When do I need to empty this barn so other
pigs can enter?
• Do I have enough time to hit my desired
weights?
• Managing pig flow with today’s health
challenges…
11. 11
Seasonal Impacts
• Cool season
– Maximum intake
– Maximum growth rate
– Easier to hit target weight
• Hot season
– Reduced intake and growth
– Space needs may dictate marketing weight
rather than an optimal weight
12. 12
Transportation
• Bigger pigs will require more trucks to empty
a site
– Should try to keep lbs/ft2 constant
Measurement 67.9 64.8 61.5 58.2 55.0 51.7
Dead on arrival at plant, % 1.37a
0.81ab
0.11c
0.09c
0.00c
0.32bc
Non-ambulatory at plant, % 1.46ab
1.08abc
1.76a
0.89bc
0.13c
0.66c
Total Losses at plant, % 2.84
a
1.88
ab
1.87
ab
0.98
bc
0.13
c
0.98
c
Effects of loading density on transport losses at the plant
1
.
Loading Density (lbs/ft2
)
1
Means within a row with different superscripts differ (P < 0.05)
Adapted from Ritter et. al. 2007
13. 13
Transportation
• Bigger pigs also show a tendency for
increased chance of DOA or fatigued animals
– May need to modify handling and loading SOP’s
– Follow TQA guidelines for ventilation, showering,
etc.
14. 14
Risks
• Markets could change
• Morbidity and Mortality
• Wear and tear on facilities and equipment
15. 15
What is the goal?
• Minimize sort loss/discounts
– Packers grids are pretty stable
• Maximize revenue
– Heavier pigs will bring a bigger check
• Maximize return (profit)
– Targets will fluctuate depending on different
economic scenarios
– Carcass price, fixed and variable costs, other
influences
16. 16
Minimize Sort Loss
• Typical Weight and Lean Grid
• No sort loss area highlighted in green and white
18. 18
Maximizing Return
• Fixed Costs – hard to influence short term
• Variable Costs (feed, labor, utilities, vetmed…)
– Largest contributor is Feed Cost
– Where is the animal on its growth curve?
– What is the Feed Conversion
• Carcass Price
– Open market, contracts, formulas…
• Packer Grids
19. 19
Maximizing Return
• Need to understand how all of these fit
together…Can be complicated
• Simplified
– Is there positive return on additional pounds of gain
– Is Carcass Price > Additional Feed Cost
– What is my maximum achievable return?
– Every profitable lb of gain increases return
26. 26
Targeting Maximum MOFC
• My pigs average 54% lean, not 58% lean
• So I should target 240 – 250 lb carcasses (320-333
lb pigs)?
• Only if you sell one pig at a time
27. 27
Single Pig vs. Population Model
• Really dealing with a distribution of weights, so
where should I center that distribution?
• To far in either direction is sub-optimal
28. 28
Margin Over Feed Cost Curve
Distribution of individual carcasses
160 170 180 190 200 210 220 230 240
HCW
MarginOverFeedCost
At some point, return starts to decrease due to
poor feed efficiency, packer discounts, or both.
The goal is to minimize the damage done by the
tails of the distribution and maximize the return
where the majority of the pigs land on the grid.
29. 29
A distribution of carcasses
0
2000
4000
6000
8000
10000
12000
Ave HCW = 205.5 lbs; Std Dev = 19.6 lbs
33. 33
What Causes Variation at Marketing?
• Fill Time vs Marketing Period
• Health Status/Challenges
• Marketing Strategy and Timing (tops)
• Short Space
• Pig Selection and Loading
34. 34
Reducing variation allows us to target a more
profitable weight for the entire populationMarginOverFeedCost
HCW
35. 35
How much more weight?
As much as is profitable for the entire population
135
125
120
115
110
105
100
95
90
85
80
37. 37
What weight to market at?
• Understand your playing field
– Prices (feed, pigs, etc.)
– Packer grid
– Marketing strategy
– Expected HCW variation
• Identify the correct weight for your system
– Maximize MOFC for the entire group, not the
individual pig
38. 38
Measure and Review
• Important to review these decisions and
evaluate execution
– System and site level
– Immediate and longer term
– Did we have the appropriate target weight?
– Did we execute our marketing strategy and get the
right pigs on the right truck?
– What should we do differently?