<i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods
Few studies have focused on assessing <i>Salmonella</i> infection in the nursery and its role in further pig production periods. Mesenteric lymph nodes, intestinal content, and meat juice from 389 6-week-old male piglets intended for human consumption from five breeding farms and 191 poo...
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| Format: | Article |
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MDPI AG
2021-01-01
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| Series: | Pathogens |
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| Online Access: | https://www.mdpi.com/2076-0817/10/2/123 |
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| author | María Bernad-Roche Alejandro Casanova-Higes Clara M. Marín-Alcalá Alberto Cebollada-Solanas Raúl C. Mainar-Jaime |
| author_facet | María Bernad-Roche Alejandro Casanova-Higes Clara M. Marín-Alcalá Alberto Cebollada-Solanas Raúl C. Mainar-Jaime |
| author_sort | María Bernad-Roche |
| collection | DOAJ |
| description | Few studies have focused on assessing <i>Salmonella</i> infection in the nursery and its role in further pig production periods. Mesenteric lymph nodes, intestinal content, and meat juice from 389 6-week-old male piglets intended for human consumption from five breeding farms and 191 pooled floor fecal samples from gilt development units (GDU) from the same farms were analyzed to estimate and characterize (by pulsed-field gel electrophoresis and antimicrobial resistance analyses) <i>Salmonella</i> infection. The prevalence of infection and shedding among piglets was 36.5% and 37.3%, respectively, shedding being significantly associated with infection (Odds Ratio = 12.7; CI 7.3–22.0). <i>Salmonella</i> Rissen; <i>S.</i> 4,[5],12:i:-; and <i>S.</i> Derby were the most common serotypes. A low level of <i>Salmonella</i>-specific maternal antibodies at the beginning of the nursery period suggested it was a period of high risk of infection. Resistance to 3rd- and 4th-generation cephalosporins was detected in piglet isolates although the piglets never received antibiotics, indicating they could be vectors of antimicrobial resistance. The same <i>Salmonella</i> clones were detected in piglet and GDU isolates, suggesting that infected piglets play a significant role in the infection of gilts and consequently of finishing pigs in the case of production farms. The control of <i>Salmonella</i> infection in nursery piglets may decrease the risk of abattoir and carcass contamination. |
| first_indexed | 2024-03-09T03:41:51Z |
| format | Article |
| id | doaj.art-cb63145885364c85aa77a80718adc07e |
| institution | Directory Open Access Journal |
| issn | 2076-0817 |
| language | English |
| last_indexed | 2024-03-09T03:41:51Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Pathogens |
| spelling | doaj.art-cb63145885364c85aa77a80718adc07e2023-12-03T14:40:21ZengMDPI AGPathogens2076-08172021-01-0110212310.3390/pathogens10020123<i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production PeriodsMaría Bernad-Roche0Alejandro Casanova-Higes1Clara M. Marín-Alcalá2Alberto Cebollada-Solanas3Raúl C. Mainar-Jaime4Departamento de Patología Animal, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50013 Zaragoza, SpainUnidad de Producción y Sanidad Animal, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50059 Zaragoza, SpainUnidad de Producción y Sanidad Animal, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50059 Zaragoza, SpainGrupo de Genética de Micobacterias, Departamento de Microbiología, Medicina Preventiva y Salud Pública, Universidad de Zaragoza, 50009 Zaragoza, SpainDepartamento de Patología Animal, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50013 Zaragoza, SpainFew studies have focused on assessing <i>Salmonella</i> infection in the nursery and its role in further pig production periods. Mesenteric lymph nodes, intestinal content, and meat juice from 389 6-week-old male piglets intended for human consumption from five breeding farms and 191 pooled floor fecal samples from gilt development units (GDU) from the same farms were analyzed to estimate and characterize (by pulsed-field gel electrophoresis and antimicrobial resistance analyses) <i>Salmonella</i> infection. The prevalence of infection and shedding among piglets was 36.5% and 37.3%, respectively, shedding being significantly associated with infection (Odds Ratio = 12.7; CI 7.3–22.0). <i>Salmonella</i> Rissen; <i>S.</i> 4,[5],12:i:-; and <i>S.</i> Derby were the most common serotypes. A low level of <i>Salmonella</i>-specific maternal antibodies at the beginning of the nursery period suggested it was a period of high risk of infection. Resistance to 3rd- and 4th-generation cephalosporins was detected in piglet isolates although the piglets never received antibiotics, indicating they could be vectors of antimicrobial resistance. The same <i>Salmonella</i> clones were detected in piglet and GDU isolates, suggesting that infected piglets play a significant role in the infection of gilts and consequently of finishing pigs in the case of production farms. The control of <i>Salmonella</i> infection in nursery piglets may decrease the risk of abattoir and carcass contamination.https://www.mdpi.com/2076-0817/10/2/123nursery pigletsprevalence<i>Salmonella</i>swinesheddingPFGE |
| spellingShingle | María Bernad-Roche Alejandro Casanova-Higes Clara M. Marín-Alcalá Alberto Cebollada-Solanas Raúl C. Mainar-Jaime <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods Pathogens nursery piglets prevalence <i>Salmonella</i> swine shedding PFGE |
| title | <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods |
| title_full | <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods |
| title_fullStr | <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods |
| title_full_unstemmed | <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods |
| title_short | <i>Salmonella</i> Infection in Nursery Piglets and Its Role in the Spread of Salmonellosis to Further Production Periods |
| title_sort | i salmonella i infection in nursery piglets and its role in the spread of salmonellosis to further production periods |
| topic | nursery piglets prevalence <i>Salmonella</i> swine shedding PFGE |
| url | https://www.mdpi.com/2076-0817/10/2/123 |
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