Dr. Ron Bates - What Barn Changes are Needed to Support Group Sow Housing?

Information about Dr. Ron Bates - What Barn Changes are Needed to Support Group Sow Housing?

Published on April 7, 2015

Author: trufflemedia

Source: slideshare.net

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1. SOW HOUSING SEMINAR 2013 PORK ACADEMY 1 Donald G Levis, Ph.D Harold Gonyou, Ph.D. Ronald O. Bates, Ph.D. Levis Worldwide Swine Consultancy Prairie Swine Centre (retired) Michigan State Univ. Lincoln, NE 68526-9486 Saskatoon, SK, Canada E. Lansing, MI Email:[email protected] Hotmail.com Email: [email protected] usask.ca Email:[email protected]

2. Sow Flow – Short Stalls Day Weeks Spaces/wk Spaces Weaning 0 Breeding 6 120 stalls 720 To gestation 39 Gestation 11 11 pens 121 Recovery 11 1 pens 11 To farrowing 113 Farrowing 4 108 crates 432 Weaning 140 2

3. Converting to Non-gated Stalls 3 36" feed alley 36" feed alley 36"alley 36" feed alley 36" feed alley 36" feed alley 7’ 2’ 7’ 7’ 7’ 7’ 7’ 7’ 3’ 2’ 2’ 2’ 7’ 3’ 3’ 3’ 3’ 39.5’39.5’

4. Converting to Non-gated Stalls Considerations to Address • Number of sows per pen? a. 10 per pen b. 20 per pen i. Why? • Square-footage a. 18 sq ft b. 20 sq ft a. Why not more? • Relief Space ~ 5% • Static Groups 4

5. Converting to Non-gated Stalls Review of barn in question • 1192 G-stalls – partial slats – 24 in stalls • 8 rows of 149 gestation stalls • 4 cross rows – 29 stalls between cross rows • Work with the present feed system • Keep the same isles for sow movement 5

6. Converting to Non-gated Stalls Review of barn in question Within a double row • 5 blocks of stalls • 4 blocks of 58 stalls – 29 stalls per side • 1 block 66 stalls (one end) – 33 stalls per side 6

7. Converting to Non-gated Stalls 7 36" feed alley 36" feed alley 36"alley 36" feed alley 36" feed alley 36" feed alley 7’ 2’ 7’ 7’ 7’ 7’ 7’ 7’ 3’ 2’ 2’ 2’ 7’ 3’ 3’ 3’ 3’ 39.5’39.5’

8. Converting to Non-gated Stalls Within two rows • 4 blocks with 928 sq ft – 492 sq ft (58 linear ft per side) • 1 block with 1056 sq ft – 528 sq ft • Feeding stalls of outside of pen – 2 ft space • Create space for a gate 8

9. Converting to Non-gated Stalls 9 36" feed alley 36" feed alley 36"alley 36" feed alley 36" feed alley 36" feed alley 7’ 2’ 7’ 7’ 7’ 7’ 7’ 7’ 3’ 2’ 2’ 2’ 7’ 3’ 3’ 3’ 3’ 39.5’39.5’

10. Converting to Non-gated Stalls 10 BEFORE AFTER BEFORE AFTER Courtesy of AP

11. 11 5’ 5’ Relief Pens Within each block are 4 pens of 10 sows per pen (20 sq ft/sow) and 4 relief pens 10 sows 10 sows 10 sows 10 sows 10 sows 10 sows 10 sows 10 sows Converting to Non-gated Stalls

12. 12 Within block are 4 pens, 10 sows per pen (18 sq ft) and 6 relief pens 4’8” Relief Pens 10 sows10 sows 10 sows 10 sows 10 sows 10 sows 10 sows 10 sows Converting to Non-gated Stalls

13. 13 Within each block are two pens of 10, two of 11 (~20 sq ft/sow) and 4 Relief Pens Relief Pens 4’ 10 sows 10 sows 10 sows 10 sows 11 sows 11 sows 11 sows 11 sows Converting to Non-gated Stalls 24’ 26’ Set relief pens at 4’x8’

14. 14 Within each block is one pen of 20 and one of 22 (~20 sq ft/sow) and 4 Relief Pens Relief Pens 4’ 20 sows 20 sows22 sows 22 sows Converting to Non-gated Stalls

15. 15 Set relief pens at 4’ x 8 ‘ Converting to Non-gated Stalls 4’ Relief Pens Within each block are two pens of 11, two of 12 (~17.6 sq ft/sow) and 4 Relief Pens 11 sows 11 sows 11 sows 11 sows 12 sows 12 sows 12 sows 12 sows 24’ 26’ 8’

16. 16 4’ Relief Pens Within each block is one pen of 22 and one of 24 (~17.6 sq ft/sow) and 4 Relief Pens 22 sows 22 sows24 sows 24 sows Converting to Non-gated Stalls

17. Converting to Non-gated Stalls 66 stall block at end • 33 stalls per side 18 sq ft/sow • Divider across slats - 4 pens of 10 and two pens of 9 sows • 2 pens of 10 sows and 1 of 9 per row • No divider – 2 pens of 20 and one pen of 18 • No relief pen 20 sq ft/sow • Divider across slats – 4 pens of 10 and two pens of 7 sows • 2 pens of 10 and 1 of seven sows per row • No divider – 2 pens of 20 sows and one of 14 sows 17

18. Converting to Non-gated Stalls Sq ft/sow 18 20 18 20 # Relief pens/row-block 2 2 1 1 #relief pens/row 8 8 4 4 # sow pens per row 11 11 11 11 #sows/ row 137 119 141 123 % relief 5.8% 6.7% 2.8% 3.3% G. Sows in Barn 1096 952 1128 984 # sows short 96 240 64 208 18 Sow Per Pen ~10

19. 19 Set relief pens at 4’ x 8 ‘ Converting to Non-gated Stalls 4’ Relief Pens Within each block are two pens of 11, two of 12 (~17.6 sq ft/sow) and 4 Relief Pens 11 sows 11 sows 11 sows 11 sows 12 sows 12 sows 12 sows 12 sows 24’ 26’ 8’

20. Converting to Non-gated Stalls Sq ft/sow 18 20 18 20 # Relief pens/row-block 2 2 1 1 #relief pens/row 8 8 4 4 # sow pens per row 11 11 11 11 #sows/ row 137 119 141 123 % relief 5.8% 6.7% 2.8% 3.3% G. Sows in Barn 1096 952 1128 984 # sows short 96 240 64 208 20 Sow Per Pen ~10

21. Converting to Non-gated Stalls What if sows were moved to pens a week earlier? If sows were moved 32 days post weaning (20-28 days post breeding) • Need 120 less breed stalls • Convert 120 breed stalls to pens @ ~18 sq ft/sow – Should be able to maintain the sow inventory, including relief • Covert breed stalls to pens @ ~ 20 sq ft/sow – Within 100 sows of maintaining the inventory, including relief 21

22. 22 Converting to Non-gated Stalls Courtesy of Big Dutchman USA An example of a remodel

23. 23 Converting to Non-gated Stalls An example of new construction

24. Converting to Non-gated Stalls 24 inch G-Stalls 22 inch G-Stalls 24 10 8 8 7 6 0 2 4 6 8 10 12 16 18 20 22 24 Numberofsowsper10stalls 9 8 7 6 6 0 2 4 6 8 10 12 16 18 20 22 24 Floor Space Allocation per Sow Floor Space Allocation per Sow

25. Converting to Non-gated Stalls Summary • No short-cut or standard way to re-configure an existing barn • The example completed tried to provide adequate space per sow and maintain as much of the sow the inventory as possible • More space per animal may be a better long-term choice  Manager will have to be more conscious to manage for both productivity and welfare compared to stalls • The example completed, demonstrated that for this building, the sow inventory could be maintained with ~ 18 sq ft (17.6) per sow and ~ 3% relief space. Is this the best? 25

26. Conclusion  When retrofitting stalled barns to group sow housing, there is no single approach  The farm decision process should be logical and consider the welfare and care needs of the sow, the physical limitations of the facility in question and address the production needs of the farm The final decision must be one that meets the needs and objectives of the farm, be managed by the people responsible for optimum sow care and is financially feasible 26

27. Conclusion Factsheets and the accompanying webinars for the Group Sow Housing project can be found at: www.pork.org/sowhousing 27

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