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Tierarztl Prax Ausg G Grosstiere Nutztiere 2013; 41(05): 279-288
DOI: 10.1055/s-0038-1623189
Originalartikel
Schattauer GmbH

Feldstudie zur simultanen Vakzination gegen das porzine Circovirus Typ 2 und Mycoplasma hyopneumoniae

Field trial on the simultaneous vaccination against porcine circovirus type 2 (PCV2) and Mycoplasma hyopneumoniae
E. Herbich
1   Klinik für Schweine der Veterinärmedizinischen Universität Wien
,
B. Heissenberger
1   Klinik für Schweine der Veterinärmedizinischen Universität Wien
,
A. Ladinig
1   Klinik für Schweine der Veterinärmedizinischen Universität Wien
,
A. Griessler
2   TraunkreisVetClinic, Ried im Traunkreis, Österreich
,
M. Ritzmann
1   Klinik für Schweine der Veterinärmedizinischen Universität Wien
3   Klinik für Schweine, Ludwig-Maximilians-Universität München
,
C. Weissenbacher-Lang
4   Institut für Pathologie und Gerichtliche Veterinärmedizin der Veterinärmedizinischen Universität Wien
,
I. Hennig-Pauka
1   Klinik für Schweine der Veterinärmedizinischen Universität Wien
› Author Affiliations
Further Information

Publication History

Eingegangen: 06 February 2013

Akzeptiert nach Revision: 03 July 2013

Publication Date:
08 January 2018 (online)

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Zusammenfassung

Ziel war zu prüfen, ob die an einer oder zwei Injektionsstellen durchgeführte simultane Applikation zweier Vakzinen gegen das porzine Circovirus Typ 2 (PCV2) bzw. Mycoplasma hyopneumoniae (M. hyo.) bei Saugferkeln ebenso wirksam ist wie die Verabreichung der einzelnen Impfstoffe. Material und Methoden: 598 Ferkel bildeten bei gemischter Aufstallung fünf Versuchsgruppen. Das Plazebo Porcilis® Diluvac forte sowie die Vakzinen Porcilis® M HYO („M HYO“) und Porcilis® PCV („PCV“) wurden jeweils in der 1. und 3. Lebenswoche (LW) wie folgt appliziert: Gruppe A: Plazebo/PCV, Gruppe B: M HYO/M HYO, Gruppe C: Plazebo/Plazebo, Gruppe D: M HYO/M HYO + PCV (kombinierte Einzeldosis), Gruppe E: Plazebo/M HYO + PCV (getrennte Injektionsstellen). Die Wirkung der simultanen Impfung wurde anhand von Tageszunahmen, pathomorphologischer Lungenveränderungen, Morbidität, Mortaliät und der Immunantwort gegen die verwendeten Antigene bestimmt. Die Verträglichkeit der simultanen Vakzination wurde anhand lokaler und systemischer Impfreaktionen bewertet. Ergebnisse: Die phasenweise schlechte Bestandsgesundheit, bedingt durch Saugferkeldurchfälle (n = 111) in der 1.–3. LW, ließ sich nicht eindeutig mit PCV2 in Zusammenhang bringen. Dennoch zeigten alle geimpften Tiere tendenziell höhere Tageszunahmen als die Kontrolltiere. Unterschiede zwischen den Gruppen hinsichtlich Lungenveränderungen, Morbidität und Mortalität waren nicht signifikant. M.-hyo.- und PCV2-spezifische Antikörpertiter lagen bei geimpften Tieren signifikant höher als bei nicht geimpften. Bei je einem Ferkel der Gruppen A (PCV2) und C (Plazebo) kam es zu lokalen Impfreaktionen. Schlussfolgerung und klinische Relevanz: In Betrieben mit suboptimaler Bestandsgesundheit lässt sich ein positiver Effekt beider Impfungen nachweisen. Die simultane Impfung gegen PCV2 und M. hyo. hatte keine negativen Auswirkungen. In Bezug auf die Steigerung der durchschnittlichen Tageszunahmen war der Effekt der simultanen Impfungen dem der Einzelimpfungen gleichwertig. Der Einsatz der Simultanimpfung gegen M. hyo. und PCV2, der Vorteile hinsichtlich Arbeitsaufwand und Tierschutz bringt, kann daher in der Praxis befürwortet werden.

Summary

Objective: The objective of the present study was to investigate whether a combined or concurrent application of two vaccines against Mycoplasma hyopneumoniae (M. hyo.) and porcine circovirus type 2 (PCV2) in suckling piglets can be as effective as the single use of both products. Material and methods: A total of 598 piglets were allocated to five groups. In the 1st and 3rd weeks of life the placebo Porcilis® Diluvac forte and the two vaccines Porcilis® M HYO (“M HYO”) and Porcilis® PCV (“PCV”) were administered according to the following scheme: group A: placebo/PCV; group B: M HYO/M HYO; group C: placebo/placebo; group D: M HYO/M HYO + PCV (combined single dose); group E: placebo/M HYO + PCV (different injection sites). Lung lesions due to M. hyo. infection were recorded at slaughter, and average daily weight gain, morbidity, mortality, serum PCV2 load and specific humoral immune responses were compared between the groups. Local and systemic side effects were recorded. Results: Sporadic impairment of the herd health status due to piglet diarrhoea (n = 111) from the 1st to 3rd weeks of life were not associated with M. hyo. or PCV2. A tendency towards a higher average daily weight gain was found in vaccinated pigs compared to the control group. Slight differences between groups in terms of lung lesions, morbidity and mortality were not significant. M. hyo. and PCV2 antibody-titers were significantly higher in vaccinated than in non-vaccinated pigs. One pig from both group A (PCV2) and group C (placebo) displayed local reactions at the vaccination site. Conclusion and clinical relevance: A positive effect on animal health can be achieved by vaccination against M. hyo. and PCV2 in herds with suboptimal health status. A simultaneous vaccination either by a combined or concurrent application has no negative effect on health status. Simultaneous vaccination yielded the same positive effect on average daily weight gain as single vaccinations. Therefore, a simultaneous vaccination against M. hyo. and PCV2, which reduces workload and is beneficial for animal welfare, can be recommended.

Schlüsselwörter

Atemwegserkrankung - Porcine respiratory disease complex (PRDC) - Postweaning Multisystemic Wasting Syndrome (PMWS) - PCV2 - Kombinationsvakzine - Schwein

Key words

Respiratory disease - porcine respiratory disease complex (PRDC) - post-weaning multisystemic wasting syndrome (PMWS) - field trial - combined vaccine
 

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