pig flow
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Pig Flow. VDPAM 310 Introduction to Production Medicine Swine Topics Lecture 1. Dr. Locke Karriker, DVM, MS R.B. Baker, DVM, MS Food Supply Veterinary Medicine Department of Veterinary Diagnostic and Production Animal Medicine Iowa State University College of Veterinary Medicine. - PowerPoint PPT PresentationTRANSCRIPT
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Pig Flow
Dr. Locke Karriker, DVM, MSR.B. Baker, DVM, MS
Food Supply Veterinary MedicineDepartment of Veterinary Diagnostic and Production Animal
MedicineIowa State University College of Veterinary Medicine
VDPAM 310Introduction to Production Medicine
Swine Topics Lecture 1
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
The Evolution of Pig Farming
• Pre 1950– Small subsistence herds < 10 sows
• 1950 to 1970– “Mortgage lifter” +/- 100 sows– Outdoor continuous flow farrow to finish– Selling or growing feeder pigs – “on dirt”– Pigs were produced in batches in mid west– Produced continuously in the south
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Industry Structure: Historical Perspectives
• Before 1980 – high zoonosis potential
• Interface with wildlife and other domestic species – Low productivity/efficiency
• >8 million sows producing <100 million pigs• < 12 pigs per sow per year
– Different set of disease agents – More chronic diseases/syndromes– Higher suckling pig mortality– Little genetic improvement
• Pigs were fat • >3.5 pounds of feed per pound of gain• Slow growth rates
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
SOW FARM / BREEDING HERD
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Historical Industry Perspectives• After the late 1970’s • Margins and Efficiencies drove the industry
– Feed costs• Very low – corn hybrids and productive years
– Biological potential of the pig realized • Repetitive reproductive potential• Almost amazing growth potential
– 3 to 300# in six months– Value created per pig
• $30/pig margins – Disease impact was highly variable during the period
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Historical Industry Perspectives• Visionaries of the Day
– Producers• Wendell Murphy, Bill Prestage, and others
– Breeding Stock • Roy Pogue, Ken Woolley, and others
– Processors • Joseph W. Luter III
– Wall Street Investment Bankers – Brand Marketers
• Hormel etc. – First Integrators
• Premium Standard Farms
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Historical Industry Perspectives• Biosecurity Development
– Before 1980 there was little• SPF and some genetic companies
– Derived from observation - intuition– Types of Biosecurity
• Internal • External
– Last 5 years more science based
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Pigs and Facilities
Age Groups• Breeding and Gestation- Sows / Boars – (Adults) • Farrowing / lactation- Piglets & Sows for 3 wks• Nursery- Pigs 7 wks• Finisher- Pigs 18 - 22 wks
Fw N FnB&GSows Pigs Pigs Market
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WeanedPool
GiltPool
RecyclePool
Breeding Pool
Replacement Gilts
60+ DaysIsolation/Acclimation
BreedingSemen
30 dayPreg. Check
True Recycle18-24 days
60 dayPreg. Check
AbortRecycle
Farrowing
Open
AbortRecycle
Not inPig
WeanedSow
Open
Weaned Pigs / Isoweans
Breeding HerdFlow
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WeanedPool
GiltPool
RecyclePool
Breeding Pool
Replacement Gilts
60+ DaysIsolation/Acclimation
BreedingSemen
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WeanedPool
GiltPool
RecyclePool
Breeding Pool
Breeding
30 dayPreg. Check
True Recycle18-24 days
60 dayPreg. Check
AbortRecycle
Farrowing
Open
AbortRecycle
Open
Not inPig
WeanedSow
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Farrowing
Weaned Pigs / Isoweans
WeanedPool
GiltPool
RecyclePool
Breeding Pool
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Pig flow systems
Basic concepts of pig movement
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Pig Facility Development• 1975 to 1985
– Change to total confinement • Improved welfare for people and pigs
– Continuous flow (high disease burden)• 1985 to 1995
– Change to All-In, All-Out in all production stages• Multisite production • This design eliminated many diseases
– Barn sizes based on the slaughter haul truck– Economies of scale and biologic efficiencies were
realized
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Variety
Different sizes and types
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British Radial Production
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Single Site: Continuous Flow
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Basic Pig Flow
Phase Review
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PROCESSBEGINS
SOW UNITBREEDING & GESTATION DEPARTMENT
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PHASE 1
SOW UNITFARROWING DEPARTMENT
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PHASE 2
NURSERY
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PHASE 3
FINISHING
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Basic Pig Flow
Sow Unit Market
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SowUnit
Finisher1
Finisher2
Nursery
MARKET
Isoweans
FeederPigs
Fat Hogs
Finishers
Fats
MarketHogs
MARKET
Weaners
Basic Flow
8 – 15 lbs35 – 75 lbs
220 – 290 lbs
220 – 290 lbs
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
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Market Pigs Fat hogs / Fats
The BIG Picture
FinishersMarket Pigs Finishers Fat hogs / FatsMarket Pigs Finishers Fat hogs / Fats
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Production Systems
Single, Two, Threeand Four? Site Systems
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Single Site
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Single Site: All-in, All-out
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Two Site(Option A)
Site 1
Site 2
Site 1
Site 2
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Two Site(Option B)
Site 1
Site 2
Site 1
Site 2
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Multisite: Nursery
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Three Site
Site 1Site 3
Site 2
Site 1Site 3
Site 2
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Three or Four Site?
Site 1Site 3
Site 2
Site 4?Two Site 3’s
XSite 3Two Site 3’s
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Multisite: B/G/F
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Group/Cohort Origin
Single vs. Multiple Source
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
AGE SEGREGATED REARINGSummary
• All In – All Out production– The most significant change in production practices over the past 100
years.– One age group per room or building
• Limits disease spread– Reduces and slows the horizontal transmission cycle
• Much Better at meeting the pig’s needs – Feed optimized for each age– Temperature optimized – Space and water delivery optimized– Improved vaccine efficacy– Etc.
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Iowa State University College of Veterinary MedicineFood Supply Veterinary Medicine
Modern pig farm• The female population is divided into ~20
by-week groups of pregnant sows/gilts– Farrow a different group each week– Replacements are added to each group-week– 3 to 4 weeks lactation– 1 week breeding– 15 weeks gestation– Ideal total time from wean to wean is 19 weeks– Each female would ideally/potentially farrow
2.74 times/year
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Single Sow SourcesNursery NurseryNurseryNursery
Four Nursery SitesEach Site has a Single Sow Source
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Multiple Sow SourcesNursery NurseryNurseryNursery
Four Nursery SitesOne Nursery Building per SiteOne Nursery Room per Building
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Multiple Sow Sources
NurseryNursery Nursery Nursery
One Nursery SiteThree Nursery BuildingsOne Nursery Room per Building
One Nursery SiteOne Nursery BuildingTen Nursery Rooms per Building
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Quiz Time!
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How Many Nursery Sites Have a Single Sow Source per Site?
NurseryNursery Nursery Nursery
Nursery NurseryNurseryNursery 2
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How Many Nursery Buildings Have a Single Sow Source per Building?
NurseryNursery Nursery Nursery
Nursery NurseryNurseryNursery 4
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How Many Nursery Rooms Have a Single Sow Source per Room?
NurseryNursery Nursery Nursery
Nursery NurseryNurseryNursery 14
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Summary• One sow unit supplies pigs to multiple nurseries• Each nursery supplies pigs to at least two
different finishers• Production systems can be categorized as:
– Single, two, or three site systems– Single or Multiple sow source system
• Each system has pros and cons• Understanding pig flow is essential in allowing you
to better address the system’s pig health options
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9 Week Cycle Example
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• Most larger operations (>500 sows) have farrowings on a daily basis– Most ship pigs either once or twice a week
• This means, there needs to be an infrastructure (i.e. buildings) to receive pigs every week
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SowUnit
Finisher1
Finisher2
Nursery
MARKET
Isoweans
FeederPigs
Fat Hogs
Finishers
Fats
MarketHogs
MARKET
Weaners
Basic Flow
8 – 15 lbs35 – 75 lbs
220 – 290 lbs
220 – 290 lbs
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Market Pigs Fat hogs / Fats
The BIG Picture
FinishersMarket Pigs Finishers Fat hogs / FatsMarket Pigs Finishers Fat hogs / Fats
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Sow Unit
0
Week # 1
Nursery
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Sow Unit
1
Week # 2
0
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Sow Unit
2
Week # 3
1 0
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Sow Unit
3
Week # 4
2 1
0
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Sow Unit
4
Week # 5
3 2
1
0
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Sow Unit
5
Week # 6
4 3
2
1
0
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Sow Unit
6
Week # 7
5 4
3
2
1
0
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Sow Unit
7
Week # 8
6 5
4
3
2
1
0
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Sow Unit
8
Week # 9
7 6
5
4
3
2
1
0
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• 9 week turn means that each nursery will receive pigs every 9 weeks
• This means that the producer who got pigs in week 1 will receive the next group of pigs in week 10
• Because of this, the producer must make room in the nursery for the next group of pigs before week 10
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Sow Unit
8
Week # 9.5
7 6
5
4
3
2
1
0
Finisher
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Sow Unit
Week # 9.5
7 6
5
4
3
2
1
0
0
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Sow Unit
Week # 10
8 7
6
5
4
3
2
1
0.5
0
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Sow Unit
Week # 10.5
7
6
5
4
3
2
1
1
0
0
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Sow Unit
Week # 11
0 8
7
6
5
4
3
2
2.5
1
0.5
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Sow Unit
Week # 11.5
0
7
6
5
4
3
2
2
1
1 0
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Sow Unit
Week # 12
1 0
8
7
6
5
4
3
2.5
2
1.5 0.5
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Sow Unit
Week # 13
2 1
0
8
7
6
5
4
3.5
3
2.5 1.5
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Sow Unit
Week # 14
3 2
1
0
8
7
6
5
4.5
4
3.5 2.5
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Sow Unit
Week # 15
4 3
2
1
0
8
7
6
5.5
5
4.5 3.5
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Sow Unit
Week # 16
5 4
3
2
1
0
8
7
6.5
6
5.5 4.5
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Sow Unit
Week # 17
6 5
4
3
2
1
0
8
7.5
7
6.5 5.5
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Sow Unit
Week # 18
7 6
5
4
3
2
1
0
8.5
8
7.5 6.5
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Sow Unit
Week # 19
8 7
6
5
4
3
2
1
9.5
0
8.5 7.50.5
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Sow Unit
Week # 20
0 8
7
6
5
4
3
2
10
1
9.5 8.51.5 0.5
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Sow Unit
Week # 21
1 0
8
7
6
5
4
3
11
2
10 9.52.5 1.5 0.5
![Page 88: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/88.jpg)
Sow Unit
Week # 22
2 1
0
8
7
6
5
4
12
3
11 103.5 2.5 1.5
![Page 89: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/89.jpg)
Sow Unit
Week # 23
3 2
1
0
8
7
6
5
13
4
12 114.5 3.5 2.5
![Page 90: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/90.jpg)
Sow Unit
Week # 24
4 3
2
1
0
8
7
6
14
5
13 125.5 4.5 3.5
![Page 91: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/91.jpg)
Sow Unit
Week # 25
5 4
3
2
1
0
8
7
15
6
14 136.5 5.5 4.5
![Page 92: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/92.jpg)
Sow Unit
Week # 26
6 5
4
3
2
1
0
8
16
7
15 147.5 6.5 5.5
![Page 93: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/93.jpg)
Sow Unit
Week # 27
6 5
4
3
2
1
0
8
16
7
15 147.5 6.5 5.5
![Page 94: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/94.jpg)
Sow Unit
Week # 28
7 6
5
4
3
2
1
0
17
8
16 158.5 7.5 6.5
![Page 95: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/95.jpg)
Sow Unit
Week # 28
7 6
5
4
3
2
1
0
17
8
16 158.5 7.5 6.5
![Page 96: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/96.jpg)
Sow Unit
Week # 28.5
7 6
5
4
3
2
1
0
0
17 169 8 7
![Page 97: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/97.jpg)
Sow Unit
Week # 29
8 7
6
5
4
3
2
1
0.5
0
17 169.5 8.5 7.5
![Page 98: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/98.jpg)
Sow Unit
Week # 29
8 7
6
5
4
3
2
1
0.5
0
17 169.5 8.5 7.5
![Page 99: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/99.jpg)
Sow Unit
Week # 29.5
7
6
5
4
3
2
1
1
0
0 1710 9 8
![Page 100: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/100.jpg)
Sow Unit
Week # 30
8
7
6
5
4
3
2
1.5
1
0.5 1710 9.5 8.5
0
![Page 101: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/101.jpg)
Sow Unit
Week # 30
0 8
7
6
5
4
3
2
1.5
1
0.5 1710 9.5 8.5
![Page 102: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/102.jpg)
Sow Unit
Week # 30.5
0
7
6
5
4
3
2
2
1
1 011 10 9
![Page 103: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/103.jpg)
Sow Unit
Week # 31
0
8
7
6
5
4
3
2.5
2
1.5 0.511 10 9.5
1
![Page 104: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/104.jpg)
Sow Unit
Week # 32
2 1
0
8
7
6
5
4
3.5
3
2.5 1.512 11 10
![Page 105: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/105.jpg)
Sow Unit
Week # 33
3 2
1
0
8
7
6
5
4.5
4
3.5 2.513 12 11
![Page 106: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/106.jpg)
Sow Unit
Week # 34
4 3
2
1
0
8
7
6
5.5
5
4.5 3.514 13 12
![Page 107: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/107.jpg)
Sow Unit
Week # 35
5 4
3
2
1
0
8
7
6.5
6
5.5 4.515 14 13
![Page 108: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/108.jpg)
Sow Unit
Week # 36
6 5
4
3
2
1
0
8
7.5
7
6.5 5.516 15 14
![Page 109: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/109.jpg)
Sow Unit
Week # 37
6 5
4
3
2
1
0
8
7.5
7
6.5 5.516 15 14
![Page 110: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/110.jpg)
Sow Unit
Week # 38
7 6
5
4
3
2
1
0
8.5
8
7.5 6.517 16 15
![Page 111: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/111.jpg)
Sow Unit
Week # 39
7 6
5
4
3
2
1
0
8.5
8
7.5 6.517 16 15
![Page 112: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/112.jpg)
Sow Unit
Week # 39.5
7 6
5
4
3
2
1
0
9
8 70 17 16
![Page 113: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/113.jpg)
Sow Unit
Week # 40
8 7
6
5
4
3
2
1
9.5
0
8.5 7.50.5 17 16
![Page 114: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/114.jpg)
Sow Unit
Week # 40
8 7
6
5
4
3
2
1
9.5
0
8.5 7.50.5 17 16
![Page 115: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/115.jpg)
Sow Unit
Week # 40.5
7
6
5
4
3
2
1
10
0
9 81 0 17
![Page 116: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/116.jpg)
Sow Unit
Week # 41
8
7
6
5
4
3
2
10
1
9.5 8.51.5 0.5 17
0
![Page 117: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/117.jpg)
Sow Unit
Week # 41
0 8
7
6
5
4
3
2
10
1
9.5 8.51.5 0.5 17
![Page 118: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/118.jpg)
Sow Unit
Week # 41.5
0
7
6
5
4
3
2
11
1
10 92 1 0
![Page 119: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/119.jpg)
Sow Unit
Week # 42
0
8
7
6
5
4
3
11
2
10 9.52.5 1.5 0.5
1
![Page 120: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/120.jpg)
Sow Unit
Week # 43
2 1
0
8
7
6
5
4
12
3
11 103.5 2.5 1.5
![Page 121: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/121.jpg)
Sow Unit
Week # 44
3 2
1
0
8
7
6
5
13
4
12 114.5 3.5 2.5
![Page 122: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/122.jpg)
Sow Unit
Week # 45
4 3
2
1
0
8
7
6
14
5
13 125.5 4.5 3.5
![Page 123: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/123.jpg)
Sow Unit
Week # 46
5 4
3
2
1
0
8
7
15
6
14 136.5 5.5 4.5
![Page 124: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/124.jpg)
Sow Unit
Week # 47
6 5
4
3
2
1
0
8
16
7
15 147.5 6.5 5.5
![Page 125: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/125.jpg)
Sow Unit
Week # 48
6 5
4
3
2
1
0
8
16
7
15 147.5 6.5 5.5
![Page 126: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/126.jpg)
Sow Unit
Week # 49
7 6
5
4
3
2
1
0
17
8
16 158.5 7.5 6.5
![Page 127: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/127.jpg)
Sow Unit
Week # 50
7 6
5
4
3
2
1
0
17
8
16 158.5 7.5 6.5
![Page 128: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/128.jpg)
Sow Unit
Week # 50.5
7 6
5
4
3
2
1
0
0
17 169 8 7
![Page 129: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/129.jpg)
Sow Unit
Week # 51
8 7
6
5
4
3
2
1
0.5
0
17 169.5 8.5 7.5
![Page 130: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/130.jpg)
Sow Unit
Week # 51
8 7
6
5
4
3
2
1
0.5
0
17 169.5 8.5 7.5
![Page 131: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/131.jpg)
Sow Unit
Week # 51.5
7
6
5
4
3
2
1
1
0
0 1710 9 8
![Page 132: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/132.jpg)
Sow Unit
Week # 52
8
7
6
5
4
3
2
1.5
1
0.5 1710 9.5 8.5
0
![Page 133: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/133.jpg)
Sow Unit
Week # 52
0 8
7
6
5
4
3
2
1.5
1
0.5 1710 9.5 8.5
![Page 134: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/134.jpg)
Sow Unit
Week # 52.5
0
7
6
5
4
3
2
2
1
1 011 10 9
![Page 135: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/135.jpg)
Sow Unit
Week # 53
0
8
7
6
5
4
3
2.5
2
1.5 0.511 10 9.5
1
![Page 136: Pig Flow](https://reader036.vdocuments.site/reader036/viewer/2022062410/56815b7d550346895dc97aff/html5/thumbnails/136.jpg)
Sow Unit
Week # 54
2 1
0
8
7
6
5
4
3.5
3
2.5 1.512 11 10