06 m grozeva
TRANSCRIPT
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4TH MERIAL FORUM
HAVE WE GOT PCVD &
SWINE INFLUENZA UNDER
CONTROL?
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PCVD
Moderator: Dr Stéphane Imbert
• Viral reproductive disorders in sows, an update 2012. Pr. H. Nauwynck
• Benefits of CIRCOVAC® piglet vaccination in Hngary. Dr T. Kecskés
• Additional benefits of sow and piglet CIRCOVAC vaccination: Bulgarian field experience. Dr M. Grozeva
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4TH MERIAL FORUM
HAVE WE GOT PCVD &
SWINE INFLUENZA UNDER
CONTROL?
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ADDITIONAL BENEFITS OF SOW AND PIGLET CIRCOVAC
VACCINATION
Bulgarian field experience
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Different targets
Reproductive performance
Piglet performance
Sow vaccination Piglet vaccination
Total herd performance
Sow & Piglet vaccination
Different approaches
x
CIRCOVAC : a dual approach for the total herd performance benefits
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BULGARIA
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Bulgaria
TURKEY
ROMANIA
SER
BIA
MA
CED
ON
IA
GREECE
110,993,6 km2
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7 628 103
2007
Moderate and transitional-continental
BULGARIA
Huge temperature variation in swine producing regions
+ 40˚ C - 30˚ C
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36 890 accessible sows in 37 farms
Traditional pork consuming people
BULGARIA
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Distribution of industrial (accessible) pigs in different types of farms
89%
10%
1%
Large Farrow-to-Finish Farms (>400 pigs)
Small Farrow-to Finish Farms (<400 pigs)
Fatteners Farms
23 farms ≈ 90% of industrial sows
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Distribution of genetics
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One site, farrow-to-finish farm (>30 000 pigs at any moment)
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Number of sows – 2700
250 hectares
Genetic - farm № 41
Number of batches – 8
Batch management – 4 days
Type of flow – all in, all out
Swine farm “Brashlen”
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Health status of the farm
PRRS (-)
App (+)
M. hyo (+)
Aujezsky (-)
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Vaccination against PCV2 - Why?
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Farm performance before vaccination
No visible reproductive disorders Farrowing Rate >90% ADWG in growers – 0.566 kg ADWG in fatteners – 0.983 kg
Stoykov et al. (2011), APVS, Pattaya, Thailand
Vaccination against PCV2 - Why?
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Farm performance before vaccination
Increased % ”lightweight” pigs, especially in fattening period Mortality rate - slight increase in fatteners (2%) Single cases of PDNS
Vaccination against PCV2 - Why?
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Farm performance before vaccination
Necropsy – stomach ulcers
Performance lower than top DanBred farms
Positive PCV2 serology
Vaccination against PCV2 - Why?
SUB CLINICAL PCVD
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No changes meantime
Same genetic
Same feed
Same vaccination program (except CIRCOVAC)
Same biosecurity … but the farm is live organism…
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CIRCOVAC - Piglet MASS vaccination - PROTOCOL
All pigs at age 29-100 days
Single injection - 0,5 ml, IM
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CIRCOVAC - Piglet REGULAR vaccination - PROTOCOL
All pigs at weaning (28-29 days)
Single injection - 0,5 ml, IM
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Benefits of CIRCOVAC - piglet vaccination
First (visible)
observations :
Disappeared stomach ulcers
Very well uniform piglets
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Growing
566
590
540
550
560
570
580
590
600
610
Before Piglets
Fattening
983
1052*
900
920
940
960
980
1000
1020
1040
1060
1080
Before Piglets
+ 69 g ADWG in fatteners + 24 g ADWG in growers
Significant improvement of ADWG
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Days from birth to 100 kg
- 4 days
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After good piglet results – sow vaccination – WHY?
A lot of confirmations of influence of PCV2 on
reproduction
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• Very good
farrowing rate…
…but opportunity to reach better results in number of born/weaned piglets
After good piglet results – sow vaccination – WHY?
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CIRCOVAC – Reproduction herd MASS vaccination - PROTOCOL
Sows, gilts, boars
Start – end of July 2009 Dose – 2 ml, IM, 2 injections, 3 weeks apart One further injection at least 2 weeks before farrowing *in mass vaccination some animals received 1 injection, another - 2 and other -3
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CIRCOVAC – Sow REGULAR vaccination - PROTOCOL
One injection at each gestation at least 2 weeks before farrowing Dose – 2 ml, IM
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CIRCOVAC – Gilts REGULAR vaccination - PROTOCOL
Primary vaccination:
Dose – 2 ml, IM, 2 injections, 3 weeks apart, second injection at least 2 weeks before mating Booster: One injection at least 2 weeks before farrowing
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Benefits of CIRCOVAC - sow vaccination Total born/litter
13 13,3
16,7*16*15,5*
10
12
14
16
18
controls piglets 2010S1 2010S2 2011T1
Control
Sows vaccinated P<0.05 (Dunett test)
+ 3,7 born piglets / litter
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Benefits of CIRCOVAC - sow vaccination
Control
Sows vaccinated P<0.05 (Dunett test)
Live born/litter
11,8 12
14,9*14,2*13,9*
10
12
14
16
controls piglets 2010S1 2010S2 2011T1
+ 3,1 live born piglets / litter
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Benefits of CIRCOVAC - sow vaccination
Control
Sows vaccinated P<0.05 (Dunett test)
Weaned /litter
11,2 11,1
12,2*11,5*11,4*
10
10,511
11,5
12
12,5
controls piglets 2010S1 2010S2 2011
+ 1 weaned piglet / litter
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CIRCOVAC - Sow & piglets – REGULAR vaccination
PROTOCOL
Sow – one injection at least 2 weeks before each farrowing
Gilts – Primary vaccination – 2 injection, 3 weeks apart, booster – 1 injection, 2 weeks before farowing
Piglets – one injection at 7 weeks of age
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IMPORTANT !!! After mass sow vaccination –
piglets vaccination was postponed to 7 weeks of age
Weeks of age
Farrowing Weaning Begin. of Finishing
Slaughter
28 days 7 weeks
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CIRCOVAC – Boar – REGULAR vaccination
Transmission of porcine circovirus
2 (PCV2) by semen
and viral distribution in different piglet tissues1
Danielle Gava2, Eraldo L. Zanella3, Nelson Morés4 and Janice R.
Ciacci-Zanella5*
6 months apart
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Growing
566
590
607*602*
540
550
560
570
580
590
600
610
Before
Piglets
sow
s+ p
igle
ts 2
009
sow
s+pigl
ets 2
010/2011
Fattening
983
1052*1060*1060*
900
920
940
960
980
1000
1020
1040
1060
1080
Before Piglets sows+ piglets2009
sows+piglets2010/2011
+ 77 g ADWG in fatteners + 41 g ADWG in growers
CIRCOVAC - Sow + Piglets The best improvement of ADWG
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150,7
145,3
- 5,3 days
Days from birth to 100 kg
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Summary of vaccination protocol
2009 Feb Mar Apr May June July Aug Sept Oct Nov Dec
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec 2010
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
Jan Feb Mar Apr May
2011
2012
Piglets Sow + Piglets Regular Sow + Piglets
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CONCLUSION In farm “Brashlen” CIRCOVAC:
increases the reproductive
performances – number of live born piglets + 3.1 and + 1 weaned pig/litter
increases the kg produced by sow
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CONCLUSION
In farm “Brashlen” CIRCOVAC :
improves the pig growth from birth to slaughter + 41 g ; + 77 g reduces the duration to 100 kg – 5,3 days helps for homogenous pig batches restore mortality rate prevent from appearance of stomach ulcers
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CONCLUSION
CIRCOVAC helps the farm “Brashlen” to have a good profit at the difficult time with a lots of crisis…and welfare requirements…
CIRCOVAC regular sow + piglet vaccination is an investment in that farm with 2700 sows and a lots of piglets…
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CONCLUSION
…but ROI are justified already
more than 3 years and prove
definitely that the sow +
piglet vaccination gives the
best performance in farrow-
to-finish farm.
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THANK YOU !