La base documentaire de l'IFIP

La base documentaire de l'IFIP : des centaines de documents à télécharger ou bien à commander.

Résultats 1 à 4 de 4 résultats
Rechercher une documentation
Publication Annéetrier par ordre croissant

Field evaluation of piglet vaccination with a Mycoplasma hyopneumoniae bacterin as compared to a ready-to-use product including porcine circovirus 2 and M. hyopneumoniae in a conventional French farrow-to-finish farm

Consulter le resumé

Didier Duvion et al., Porcine Health Management, 2018, volume 4, n° 4, 18 janvier, 8 pages

Abstract

BACKGROUND:

A controlled randomized trial was performed on a well-managed conventional French 180-sow farm. The trial compared the growth performances of piglets vaccinated at weaning (single shot) either with a commercial monovalent Mycoplasma hyopneumoniaebacterin vaccine or with a commercial bivalent vaccine (Porcilis® PCV M Hyo) against M. hyopneumoniae and porcine circovirus 2 (PCV2). The farm's porcine reproductive and respiratory syndrome status was stable, and most diseases (enzootic pneumonia, atrophic rhinitis, post-weaning multisystemic wasting syndrome) were controlled by routine vaccination.

RESULTS:

During the post-weaning phase, the growth performances of the piglets vaccinated with the bivalent vaccine were not significantly different from those vaccinated with the monovalent vaccine. However, during the fattening phase the group vaccinated with the bivalent vaccine had a significantly improved ADG (+34 g/d, p = 0. 047), resulting in a 5-day earlier shipment to slaughter. The group also had a shorter and lower PCV2 load in serum during the fattening period, and an improved lung lesions score. In both groups, three pigs died during the peak PCV2 viraemia (16-23 weeks of age). Immunohistochemistry of the lymph nodes showed that in the group vaccinated with the bivalent vaccine, none of these pigs had PCV2-like lesions, while 2 out of the 3 from the other group did. Results suggest that the added PCV2 valence in the vaccination protocol helps countering the negative impact of subclinical PCV2 infection on growth. The calculated return on investment of the added PCV2 vaccine valence was €1.7 extra revenue per slaughtered pig (€ 39 additional revenue per sow and per year), despite the fact that the cost of the bivalent vaccine was higher than the monovalent M. hyopneumoniae vaccine.

CONCLUSION:

In this healthy conventional sow farm, the combined M. hyopneumoniae and PCV2 vaccination was efficacious, convenient to administer and profitable

https://porcinehealthmanagement.biomedcentral.com/track/pdf/10.1186/s40813-017-0077-y

2018

Intérêts comparés des vaccinations PCV2 et Mycoplasma hyponeumoniae combinées ou Mycoplasma hyponeumonuae seule chez les porcs en croissance

Consulter le resumé

Isabelle Corrégé et al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, p. 227-228, poster 

Le virus PCV2 et la bactérie Mycoplasma hyopneumoniae sont omniprésents dans les élevages de porcs. La co-infection par ces deux pathogènes aggrave les effets sur la santé et la croissance des porcs (Fablet, 2012). Les vaccinations contre le virus du PCV2 et M. hyopneumoniae sont des outils efficaces pour réduire les lésions, la virémie et améliorer la croissance (Heißenberger et al., 2013).
L’objectif de cette étude est de comparer l’impact sur les performances des porcs en engraissement, la virémie et les lésions pulmonaires de la vaccination combinée PCV2 et M. hyopneumoniae avec la vaccination M. hyopneumoniae seule dans un élevage avec une forme subclinique de PCV2 et une circulation de M. hyopneumoniae.

ENG 

Positive impact on growing pigs of combined PCV2 and Mycoplasma hyopneumoniae piglet vaccination compared to vaccination against Mycoplasma hyopneumoniae alone

The aim of this controlled and randomised trial was to test the efficacy of a combined piglet vaccination against PCV2 and M. hyopneumoniae in comparison with a vaccination against M. hyopneumoniae alone, on the performances of fattening pigs in a herd with a subclinical PCV2 circulation. At 5 weeks of age, 168 piglets from the same farrowing batch were divided into 84 pairs of piglets that were similar in sex, weight, sow or sow parity and litter size (when no pair was available within a litter). In each pair, one piglet was vaccinated with combined PCV2 and M. hyopneumoniae vaccine and one with one dose M. hyopneumoniae vaccine according to Marketing Authorisation. Both groups were exposed to natural PCV2 and M. hyopneumoniae circulation as evidenced by antibody seroconversion and lung lesion scoring.
Piglet PCV2 and M. hyopneumoniae combined vaccination in comparison with piglet M. hyopneumoniae one shot vaccination had no impact on growth performance (ADWG) during the post weaning period. ADWG was significantly improved during the fattening period (+34 g/d). FCR during the fattening period also seemed to improve (-0.06 point) with PCV2 and M. hyopneumoniae combined vaccination although not significantly. Pneumonia lesions and PCV2 viremia were also significantly less pronounced. The other criteria (clinical signs, mortality and slaughterhouse data) were not found to be significantly different.

PDF icon Isabelle Corrégé et al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, p. 227-228, poster
2017

Intérêts comparés des vaccinations PCV2 et Mycoplasma hyopneumoniae combinées ou Mycoplasma hyopneumoniae seule chez les porcs en croissance

Consulter le resumé

Isabelle Corrégé et al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, poster

Objectif : comparer l’impact sur les performances des porcs en engraissement, la virémie et les lésions pulmonaires de la vaccination combinée PCV2 et M. hyopneumoniae avec la vaccination M. hyopneumoniae seule dans un élevage avec une forme subclinique de PCV2 et une circulation de M. hyopneumoniae.

PDF icon Isabelle Corrégé et al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, poster
2017

Intérêt comparé des vaccinations PCV2 et Mycoplasma hyopneumoniae, combinées ou non

Consulter le resumé

Isabelle Corrégé, Bilan 2016, éditions IFIP, mai 2017, p. 74

Mycoplasma hyopneumoniae (Mhyo) et PCV2 sont très présents dans les élevages de porcs. La co-infection par ces

2 pathogènes en aggrave les effets sur la santé et la croissance des porcs.

La vaccination vis-à-vis de Mhyo est très répandue en élevage et celle contre le virus du PCV2 est largement utilisée dans des élevages présentant une expression clinique des maladies associées au PCV2.

L’objectif est de comparer l’impact sur les performances des porcs, la virémie et les lésions pulmonaires, de la vaccination combinée PCV2+Mhyo avec la vaccination Mhyo seule dans un élevage avec une forme subclinique de PCV2 et une circulation de M. hyopneumoniae.

PDF icon Isabelle Corrégé, Bilan 2016, mai 2017, p. 74, fiche n° 38
2017