dr. steve pollmann - sow lifetime productivity: importance of monitoring in commercial pork...
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Sow lifetime productivity: Importance of monitoring in commercial pork production - Dr. Steve Pollmann, from the 2012 Allen D. Leman Swine Conference, September 15-18, St. Paul, Minnesota, USA. More presentations at http://www.swinecast.com/2012-leman-swine-conference-materialTRANSCRIPT
Sow Lifetime Productivity: importance of monitoring in commercial pork production
Steve Pollmann, PhDPresident
Western Operations, Murphy-Brown LLC
Financial importance Definition Industry production trends Focus areas Commercial results Reasons for herd removal
Outline
Typical ◦Pigs per sow per year ◦Pre-weaning mortality
Preferred ◦Pigs weaned per mated female◦Wean pig cost◦Pigs per sow lifetime
Sow Key Metrics
Estimated Financial Impact of Change
Metric Change Cost/cwt, $ Cost/pig, $ SFD Cost impact*
Feed: Corn and soybean meal $.25/bu; $20/ton $1.597 $4.39 $74.6M
Nursery mortality 1.0% $0.190 $0.52 $8.9M
Finishing mortality 1.0% $0.721 $1.98 $33.7M
Additional sale weight 1.0 lb $0.060 $0.17 $2.8M
Pigs weaned per sow farrowed 0.10 $0.150 $0.41 $7.0M
*Assumes 17M pigs per year averaging 275 lbs; year’s average ingredient costs
Financial relationship:• 0.5 pig weaned per sow farrowed = 1.0% finishing
mortality• 1.0 pig weaned per sow farrowed = corn and SBM
increase of $.25/bu and $20/ton
Step-wise procedures usedComponents: R2= 0.97
◦Weaned pig cost ◦Finishing cost ◦Wean-to-market mortality ◦Pigs weaned per female farrowed
Most important components affecting cost per cwt
“The total number of quality pigs weaned during the productive lifetime of a female; from the time she becomes breeding eligible until she leaves the herd.”
---National Pork Board, 2010
Sow Lifetime Productivity (SLP) Definition
Gilt cost, $
per head
Avg No. parities
No. weaned /
litter farrowed
Pigs/ sow
lifetime
Breeding stock cost/
weaned pig
Difference
$350 3.5 10.5 36.75 $9.52 ----
$350 4.5 10.5 47.25 $7.40 $2.22
$400 4.5 10.5 47.25 $8.47 $1.05
Improving SLP decreases weaned pig cost potential
ItemBorn live per litter
Pre-Wean Mortality, %
Weanedper litter
Avg Company (3-mo rolling) 12.35 15.89 10.39
Top 25% (3-mo rolling) 12.16 12.80 10.60
Best of Class (Month) 13.73 5.74 11.55
Worst of Class (Month) 10.27 19.31 8.50
AgriStats – Sow Metrics (July 2012)
ItemPigs / Mated
Sow / Year
Litters / Mated
Sow / YearSow
Mortality, %
Weaned pig cost, $/head
Avg Company (3-mo rolling) 23.91 2.30 9.93 $33.87
Top 25% (3-mo rolling) 25.66 2.42 9.70 $26.61
Best of Class (Month) 29.08 2.55 3.97 $23.72
Worst of Class (Month) 19.73 2.08 16.77 $44.85
AgriStats – Sow Metrics (July 2012)
NPB Industry Productivity Project
Criterion 2005 2006 2007 2008 2009 2010 Slope R2
Litters/Mated Sow/Year 2.31 2.34 2.34 2.35 2.34 2.34 0.004 0.39
Number Born Alive 10.77 10.92 11.11 11.33 11.61 11.83 0.217 0.99
Number Weaned 9.30 9.39 9.55 9.72 9.98 10.08 0.169 0.98
Preweaning Mortality (%) 13.68 14.08 14.03 14.15 14.03 14.75 0.152 0.67
Pigs/Mated sow/Year 21.50 21.94 22.37 22.87 23.40 23.63 0.444 0.99
Replacement Rate (%) 54.07 57.76 56.02 56.10 51.38 52.22 -0. 813
0.38
Sow Mortality (%) 11.18 10.67 10.43 10.26 9.81 10.39 -0.162 0.63
Gilt development methods Gilt selection and utilization rates Female retention (depletion of body
reserves) Improving number weaned per litter Improving farrowing rates (less non-
productive days and more litters/sow/year) Improving sow livability Minimizing seasonality
Areas that influence sow lifetime productivity (longevity and productivity)
Not routinely assessed or monitored Not commonly available on most sow record systems
Limited benchmarking availability Parity segregation system increase data collection accuracy and integrity
Challenges with Sow Lifetime Productivity
Sow Lifetime Productivity Nevada, MO
QR WR EN SV CN SG BS AH WP TH HE TM DW OE BC DV5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
66.064.1 63.9
60.959.2 59.1
57.0 56.955.2 55.1 54.0 53.8
52.3 51.6 50.4 50.2
% o
f p
lace
d g
ilts
havin
g t
hre
e
litt
ers
Data Collection from 1/5/2009 - 6/27/2010
16% range among sow farms 24% in longevity
% to P1 % to P2 (change)
% to P3 (change
)Top 3 avg 86.1 72.5
(13.6)64.7 (7.8)
Bottom 3 avg
73.6 58.8 (14.8)
50.7 (8.1)
Difference 12.5 13.7 14.0
Sow Lifetime ProductivityNevada, MO
>22 22.1-27.7
27.8-33.2
33.3-38.8
38.9-44.3
44.4-49.5
50.0-55.4
<55.50
5
10
15
20
25
30
35
1
810
32
15
10 11
5
Western Operations:Sow Lifetime Productivity Distribution
N = 93 farmsMean = 33.9
SD = 11.4
OEWREN BS QR AH THDWCN BC SV SG HEWPDO TM0
5
10
15
20
25
30
35
40
45
5045
40 3937 36 36 36 35 35 34 33 32
30 2927
24
MO Sow Lifetime Productivity Distribution (60k sows)
Sow Lifetime Productivity – UT and OK
2007 2008 2009 2010 201110
15
20
25
30
35
40
45
50
55
3236 35
39
44
f(x) = 2.55287886999998 x + 29.6581617500001R² = 0.896480314594332
SL Linear (SL)
2007 2008 2009 2010 201110
15
20
25
30
35
40
45
50
55
28
3437
33
41
f(x) = 2.46828161000004 x + 27.2001411099999R² = 0.65693559274698
TW Linear (TW)
Lifetime Productivity Distribution
a0-9
b10
-19
c20-
29
d30
-39
e40-
49
f50-
59
g60
-69
h70
-79
i80-
89
j90-
99
k100
-109
l110
-119
m12
0-12
9
n13
0-13
9
o14
0-14
9
p15
0-15
9
q16
0-16
9
s180
-189
-5.0%
0.0%
5.0%
10.0%
15.0%
20.0%
25.0%
30.0%
35.0%
28.4%
14.0%
9.6% 9.2% 8.9% 9.0% 8.4%6.1%
3.5%1.7% 0.7% 0.3% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0%
%
fe-
male
s
42% of all females have 19 or fewer piglets
Pigs per sow lifetime
3.7% all prolapsed reasons
Total = 38,394 Entered but did not produce any pigs
Replacement Rate = 60%
34,500 more Pigs Weaned for FY12
Seasonal Effects on Weaned Pigs Weekly
8-12% reduction in weaned pigs due to summer breeds
~4k
~2-3k
• Sow lifetime productivity is not commonly monitored or benchmarked
• SLP variation is very high under commercial conditions
• Possible to improve SLP about 2.0-2.5 per year
• Greatest opportunity - improving retention of P0 and P1 females
• Improving SLP will lower weaned pig costs
Summary