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Sonalio K, Boyen F, Devriendt B, Chantziaras I, Beuckelaere L, Biebaut E, Haesebrouck F, Santamarta I, de Oliveira LG, Maes D. Rationalizing the use of common parameters and technological tools to follow up Mycoplasma hyopneumoniae infections in pigs. Porcine Health Manag 2024; 10:31. [PMID: 39180129 PMCID: PMC11342468 DOI: 10.1186/s40813-024-00381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 08/05/2024] [Indexed: 08/26/2024] Open
Abstract
BACKGROUND Mycoplasma (M.) hyopneumoniae is associated with respiratory disease in pigs and is the primary agent of enzootic pneumonia. Quantification of M. hyopneumoniae-related outcome parameters can be difficult, expensive, and time-consuming, in both research and field settings. In addition to well-established methods, technological tools are becoming available to monitor various aspects of relevant animal- and environment-related features, often in real-time. Therefore, this study aimed to assess whether certain parameters, such as animal movement and body temperature using microchips (IMT), correlate with established parameters and whether the currently used parameters can be rationalized. RESULTS The percentage of movement was significantly reduced by M. hyopneumoniae infection in pigs (p < 0.05), where the M. hyopneumoniae-infected group showed a lower percentage of movement (1.9%) when compared to the negative control group (6.9%). On the other hand, macroscopic (MLCL) and microscopic (MLL) lung lesions, respiratory disease score (RDS), M. hyopneumoniae-DNA load, and anti-M. hyopneumoniae antibody levels increased significantly in the M. hyopneumoniae-infected group 28 days post-inoculation (p < 0.05). Moderate (r > 0.30) to very strong correlations (> 0.80) were observed between the abovementioned parameters (p < 0.05), except for IMT. A significant and moderate correlation was reported between IMT and rectal temperature (r = 0.49; p < 0.05). Last, the average daily weight gain and the percentage of air in the lung were not affected by M. hyopneumoniae infection (p > 0.05). CONCLUSIONS M. hyopneumoniae infection significantly reduced the movement of piglets and increased lung lesions, M. hyopneumoniae-DNA load, and anti-M. hyopneumoniae antibody levels; and, good correlations were observed between most parameters, indicating a direct relationship between them. Thus, we suggest that changes in movement might be a reliable indicator of M. hyopneumoniae infection in pigs, and that a selected group of parameters-specifically RDS, MLCL, MLL, M. hyopneumoniae-DNA load, anti-M. hyopneumoniae antibody levels, and movement-are optimal to assess M. hyopneumoniae infection under experimental conditions.
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Affiliation(s)
- Karina Sonalio
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil.
| | - Filip Boyen
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Bert Devriendt
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Ilias Chantziaras
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Lisa Beuckelaere
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Evelien Biebaut
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Freddy Haesebrouck
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | | | - Luís Guilherme de Oliveira
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, São Paulo State University (Unesp), Jaboticabal, Brazil
| | - Dominiek Maes
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Rosado NCL, Santos MR, Silva LMN, Assao VS, AraÚjo EN, Gonzaga NF, Kunz AF, Takiuchi E, Bressan GC, Fietto JLR, Silva-JÚnior A. Detection and partial molecular characterization of Picobirnavirus in swine from the state of Minas Gerais, Brazil. J Vet Med Sci 2020; 82:1798-1801. [PMID: 33071251 PMCID: PMC7804044 DOI: 10.1292/jvms.19-0565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Picobirnavirus (PBV) is a small two-segmented double-stranded RNA (dsRNA) virus that has been identified in diarrheic feces of a large range
of animal hosts, including humans. For this reason, PBV has been recognized as an opportunistic agent of gastrointestinal disease. Even under these
circumstances, there is a lack of studies regarding this pathogen. Not outstanding, in Brazil, the single description of the PBV occurrence in pigs was provided
in the 1980s. Hence, this study aimed to verify the PBV occurrence in Brazilian swine farms and to perform molecular characterization of the identified strains.
High genetic variability was found in the analyzed sequences. Further studies comprehending the infection of swine by PBV in Brazilian herds should be performed
to provide more accurate information on its epidemiology and to discuss the role of the virus in gastrointestinal diseases.
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Affiliation(s)
- Nívia Carolina Lopes Rosado
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Marcus Rebouças Santos
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Laura Morais Nascimento Silva
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Viviane Sisdelli Assao
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Elaine Nery AraÚjo
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Natália Fialho Gonzaga
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Andressa Fernanda Kunz
- Department of Veterinary Sciences, Federal University of Paraná-UFPR Palotina, PR, Brazil
| | - Elisabete Takiuchi
- Department of Veterinary Sciences, Federal University of Paraná-UFPR Palotina, PR, Brazil
| | - Gustavo Costa Bressan
- Laboratory of Animal Molecular Infectology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Juliana Lopes Rangel Fietto
- Laboratory of Animal Molecular Infectology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
| | - Abelardo Silva-JÚnior
- Laboratory of Immunobiological and Animal Virology, Department of Veterinary, Federal University of Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil
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Assao VS, Scatamburlo TM, Araujo EN, Santos MR, Pereira CER, Guedes RMC, Bressan GC, Fietto JLR, Chang YF, Moreira MAS, Silva-Júnior A. Correction to: Genetic variation of Mycoplasma hyopneumoniae from Brazilian field samples. BMC Microbiol 2019; 19:258. [PMID: 31747872 PMCID: PMC6865044 DOI: 10.1186/s12866-019-1637-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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