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EGG INDUSTRY CENTER
Administered by the College of Agriculture and Life Sciences, Iowa State University, USA
Advancing research and
outreach for a sustainable
egg industry.
A Presentation at the Egg Farmers of Ontario 53rd Annual Meeting
Hongwei Xin, EIC Director
March 27, 2018
Presentation Outline
1. Brief background about EIC 2. Funded/Led Research by EIC 3. Highlights of three EIC-led research projects
a) Feeding behavior of individual hens in enriched colony housing (ECH)
b) Dust reduction and summer cooling in an aviary henhouse by water sprinkling
c) Impacts of full vs. partial litter access in aviary CF hen house
2
Brief background about Egg Industry Center
(EIC)
3
Back in time – 2008 Decline in Poultry Research Funding
• Federal (poultry research ranks 54th in USDA funding) • Unstable check-off programs
Decline in university poultry programs • Only 6 PS Depts left in the US (AL, AR, GA, MS, NC, TX), all in
the Southeast
Needs by the industry, hence the mission of L-G university (teaching, research, extension/outreach) EIC was established to:
• Meet the needs of the egg industry and its constituents through coordination, collaboration and leadership.
• Provide steady funding through creating a $10M endowment 4
EIC Mission Add value to the egg industry by facilitating research
and learning for egg producers, processors and consumers through national and international
collaboration.
5
EIC Vision Assist a thriving egg industry.
EIC Advisory Board
6
Tim Lambert, EFC
EIC Team
Maro Ibarburu Associate Scientist
Julie Roberts Office Assistant
Lesa Vold Comm. Specialist
Hongwei Xin Director
Annual Intern ISU Student
7
Funded/Led Research by EIC
8
EIC Research Outputs & Impacts
No. of Researchers
Touched/Trained
42
Dollars Invested in Research
$865,232 No. of
Institutions Involved
8 No. of Projects
Funded
33 External Funding Leveraged
$3.5M No. of Research
Pubs
57 9
EIC Led/Funded Research
10
Highlights of three EIC-led research projects
a) Feeding behavior of individual hens
in enriched colony housing (ECH)
11
12 Antenna Feeder Plastic Cover RFID Reader (902-928 MHz)
Feeder Load Cell Support Load Cell Water Tank Load Cell Collector
RFID Tag
Experiment System Setup
Study Findings
1) Not all hens in ECH feed at the same time.
13
53.0 53.3 57.3 59.0
0
10
20
30
40
50
60
70
6.5 8.5 9.5 12.0
Max
% h
ens a
t fee
der (
%)
Feeder space (cm/hen)
b a ab
ab
Study Findings 2) Considerable variations among individual hens in
time spent at the feeder
14
Bird No.
Tim
e Sp
ent a
t Fee
der (
min
/d)
Mean 310 min (5.2 h)
Max 540 min (9.0 h)
Min 144 min (2.4 h)
Study Findings 3) No difference in production performance among
6.5, 8.5, 9.5, & 12.0 cm feeder spaces
15
109 109 109 108
0306090
120
6.5 8.5 9.5 12.0
Feed
inta
ke
(g/b
ird/d
)
Feeder space (cm/hen)
94.7 96.3 93.3 96.0
0255075
100
6.5 8.5 9.5 12.0
Hen
-Day
Egg
Pr
oduc
tion
(%)
Feeder space (cm/hen)
Highlights of three EIC-led research projects
16
b) Dust reduction and summer cooling in an aviary henhouse by water sprinkling
17
System Setup – Lab test
18
System Setup – Field verification
Study Findings – Lab test 1) PM levels were reduced by 71-89% right after water
spray and 57-83% 24 hr post-spray at three dosages.
19 (Chai et al., 2017)
Study Findings – Field test (prelim) 2) PM levels were reduced by 37-51% when the litter
was sprayed once a day, w/o increasing ammonia.
20 (Chai et al., 2018 - unpublished)
Study Findings – Field test (prelim)
3) The water sprinkling system may help cooling the hens in summer (surface wetting).
21
Before sprinkling After sprinkling
Highlights of three EIC-led research projects
22
c) Impacts of full litter access (FLA) vs. partial litter access (PLA) in an aviary cage-free hen house
23
Experiment Setup in the Commercial Aviary Cage-Free Hen House
FLAE
FLAP
PLAE
PLAP
End sections (not used in the study)
Full litter access with experienced hens
Full litter access with pullets only
Partial litter access with experienced hens
Partial litter access with pullets only
• R = Row, S = Section • Total hens = 51,405 (Dekalb white); 41,136 used in the study • Narrower rows = 857 hens, wider rows = 1,714 hens, Lights on at 5:15 h, POD open doors
at 10:50 h, Lights off (POD doors closed) at 21:00 h • 1.5% Experienced hens (Bovan White at 49 WoA – 4 weeks delay for PLA treatments) • Study period: 11/27/16 (pullets at 17 WoA) – 01/24/18 (hens at 76 WoA) (14 months)
Study Findings 1) No difference in all measured welfare parameters
between full and partial litter access regimens
24
Study Findings
2) No difference in body weight uniformity between full and partial litter access regimens
25
[VALUE]4 [VALUE]3
0.00.20.40.60.81.01.21.41.61.8
Full Litter Access(FLA)
Partial Litter Access(PLA)
Body
wei
ght (
kg)
82 83
0
10
20
30
40
50
60
70
80
90
Full Litter Access(FLA)
Partial Litter Access(PLA)
Uni
form
ity (%
)
P = 0.49 P = 0.46
Study Findings
3) Partial litter access (PLA) reduced floor eggs by 89% vs. full litter access (FLA).
26
12,625
1,374
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
Full Litter Access (FLA) Partial Litter Access (PLA)
Cum
ulat
ive
floor
egg
s per
1,
000
hens
hou
sed
Study Findings 4) Partial litter access (PLA) reduced manure deposition
on litter floor by 45% (DM) to 59% (as-is), lower ammonia (21%), and less litter caking in winter.
27
1.7
0.7
1.1
0.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Full Litter Access (FLA) Partial Litter Access (PLA)
Litt
er re
mov
ed (k
g/10
0 he
ns/d
)
As is Dry
28 Follow: http://www.eggindustrycenter.org
10-year Anniversary
Egg Industry Issues Forum April 16-18, 2018 Scottsdale, AZ
Advancing research and outreach for the egg industry worldwide.
