In this study, we investigated the dynamics of Mycoplasma hyopneumoniae infections in 66 pig farms, with different production systems (one-, two-, and three-site systems), and considered different risk factors. Serological assay was used to detect serum antibodies against M. hyopneumoniae and real time polymerase chain reaction (RT–PCR) was performed to detect M. hyopneumoniae DNA in tracheobronchial swabs. Results demonstrated that M. hyopneumoniae infection status was predominantly influenced by the age of the animals and the type of production system. Infection rates were higher in older animals and the prevalence was higher in the one- and two-site systems than in the three-site systems. Dynamics of infection by RT-PCR showed that earlier M. hyopneumoniae infection on one-site farms occurs earlier, while on two- and three-site farms occurs later but spreads faster, suggesting that contact between animals of different age favors the transmission.

Dynamics of Mycoplasma hyopneumoniae seroconversion and infection in pigs in the three main production systems / E. Giacomini, N. Ferrari, A. Pitozzi, M. Remistani, D. Giardiello, D. Maes, G.L. Alborali. - In: VETERINARY RESEARCH COMMUNICATIONS. - ISSN 0165-7380. - 40:2(2016 Jun), pp. 81-88. [10.1007/s11259-016-9657-6]

Dynamics of Mycoplasma hyopneumoniae seroconversion and infection in pigs in the three main production systems

N. Ferrari
Secondo
;
2016

Abstract

In this study, we investigated the dynamics of Mycoplasma hyopneumoniae infections in 66 pig farms, with different production systems (one-, two-, and three-site systems), and considered different risk factors. Serological assay was used to detect serum antibodies against M. hyopneumoniae and real time polymerase chain reaction (RT–PCR) was performed to detect M. hyopneumoniae DNA in tracheobronchial swabs. Results demonstrated that M. hyopneumoniae infection status was predominantly influenced by the age of the animals and the type of production system. Infection rates were higher in older animals and the prevalence was higher in the one- and two-site systems than in the three-site systems. Dynamics of infection by RT-PCR showed that earlier M. hyopneumoniae infection on one-site farms occurs earlier, while on two- and three-site farms occurs later but spreads faster, suggesting that contact between animals of different age favors the transmission.
mycoplasma hyopneumoniae; RT-PCR; Serology; tracheobronchial swabs; vaccine; veterinary (all)
Settore VET/06 - Parassitologia e Malattie Parassitarie degli Animali
Settore VET/05 - Malattie Infettive degli Animali Domestici
giu-2016
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/425133
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