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Pork Production Phases and Scheduling

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Title: Pork Production Phases and Scheduling


1
Pork Production Phases and Scheduling
  • AnS 225 Lab
  • 9 - 34 - 14

2
Pork Production Phases
  • Breeding
  • Farrowing
  • Nursery
  • Finishing

3
Swine ProductionBiological and Management Phases
  • 3-Site Production 2-Site Production
  • Breeding
  • Gestation
  • Farrowing
  • Nursery
  • Finishing

4
Goals of Production Scheduling
  • Even animal flow uniform group size
  • Same size group in all phases
  • Minimize range in age in each group
  • Maximize use of facilities without overcrowding
  • Intensive use to improve economics
  • Produce large groups of homogeneous pigs
  • Large finishers are more economical to build
  • Facilitate all-in/all-out for high health and to
    break disease cycles
  • Utilize labor efficiently

5
Biosecurity/Segregation Principles
  • Best case -- no more
  • than 7-day age variation
  • Site
  • Building
  • Room
  • All-in, all-out is key to success
  • Many variations are possible and have proven to
    be successful

6
Breeding/Gestation/Farrowing
  • Sow Herd
  • Function
  • Site of mating, housing, farrowing
  • Resources
  • Technology intensive
  • Labor intensive
  • Fundamental to economic viability
  • Pigs born and raised is most economically
    important part of pork production

7
Breeding Production Phase
  • Types of mating systems
  • Artificial insemination
  • Hand mating
  • Pen mating
  • Facilities
  • Environmentally controlled - individual stalls
  • Environmentally controlled - pens
  • Open lots in groups
  • Hoop structures -- group housing

8
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9
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10
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11
Nursery Facilities
  • Specialized care for the weaned pig
  • Sanitary
  • Environmental control
  • Critical for early weaned pigs
  • Warm, draft-free environment needed
  • Intense management
  • Frequent observation
  • Frequent feeding

12
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13
Finishing Facilities
  • Wide variation in type
  • Group size is larger
  • 25 to 500 pigs/pen
  • Mechanical/natural ventilation
  • Labor intense/labor minimal
  • Variation in feeder type
  • Wean-finish has become new option for many
    systems
  • Pigs go direct to finishing barn at weaning
    eliminate nursery phase

14
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15
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16
Hoop Building for Finishing
17
Scheduling Basics
  • Schedules vary by farm and system
  • Farrowing weaning age determines time in phase
  • Nursery specific no. of days or weeks
  • Finishing time or weight?
  • Marketing procedures will affect
  • Top off barn? Sell as one group?
  • Specific number of days or weeks
  • May be feed-based pigs marketed after
    pre-determined amount of feed is fed

18
Principles of Production Scheduling
  • Gestation period 113 to 116 days (114)
  • Breeding period
  • First estrus occurs 4-7 days after weaning (ave.
    5)
  • Estrous cycle is 21 days
  • Length of breeding period determines age range of
    pigs in group farrowed
  • Weaning age most weaned at approximately 21
    days
  • Weaning ages are gradually increasing
  • Conception rates seasonal effects
  • Breed more females during periods of lower
    conception rate to maintain group size
  • Growth rate affects number of days in finisher

19
Weekly System
  • Farrow XX sows per week to produce XX pigs
    per week
  • Pigs needed per week and litter size determine
    number of sows to farrow
  • Must have 4 farrowing rooms to make work
  • Breeding period is continuous
  • Maximizes production and use of facilities
  • Minimizes non-productive sows days
  • Several variations and options are used in the
    industry

20
Group System
  • System works best for small/mid-size farms
  • Use for farms with 1-2 farrowing rooms
  • Farrow every 28 days, every 35 days, etc.
  • Allows strategic scheduling throughout the year
  • Schedule around other farm activities planting,
    harvest, etc.
  • Usually requires longer breeding period for the
    group
  • May require an increase in weaning age
  • Goal should be multiple of 7 or 21 days between
    group activities if possible
  • Allows females that do not conceive to fit a
    later group

21
Variables in Scheduling Programs
  • Age at weaning
  • Days in breeding period
  • Days to first service
  • days in farrowing room before due date
  • Days for clean-up between groups

22
Gilt Pool
  • Gilts (already cycling) waiting to be bred and
    added to system
  • Needed to replace females that are culled to
    maintain constant group size
  • Approximately 3X number needed per week
  • Size of pool is farm-specific
  • Size may need to be increased in summer months

23
Litters/Female/Year
  • Goal is to maximize for most farms
  • 114-day gestation period
  • 18-21 day lactation period
  • 5-7 days to return to estrus
  • Minimum of 137 days
  • 365 / 137 2.66 litters/female/year (Maximum)

24
Production Systems Pig Flow
  • Technology and economies of scale have driven the
    size of operations
  • Minimum age spread in groups is harder to achieve
    in small herds
  • Danger in violating principles of all-in/all-out
  • Large finishers (1,000 head) are more cost
    effective to build
  • Larger groups of sows are needed to produce large
    groups of pigs with minimum age spread
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