A cross-sectional study of risk factors associated with pulmonary lesions in pigs at slaughter

Meyns, Tom; Steelant, Jan Van; Rolly, Emily; Dewulf, Jeroen; Haesebrouck, Freddy; Maes, Dominiek

doi:10.1016/j.tvjl.2009.12.027

Cited by 105 publications

(147 citation statements)

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“…In slaughter pigs, lung lesions are a relatively common find (Meyns et al, 2011, Merialdi et al, 2012. Meyns et al (2011) found a prevalence of 20.76 % visible lesions of pleuritis, and 23.85 % of visible lesions of pneumonia in a study in which over 6000 slaughter pigs were examined.…”

Section: Zoonotic Diseasementioning

confidence: 99%

Animal health and disease monitoring in the abattoir

2015

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Section: Zoonotic Diseasementioning

confidence: 99%

Animal health and disease monitoring in the abattoir

2015

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“…Monitoring tools to assess the health status of different animal categories at farm level are quite diverse and may vary from conventional clinical observations over herd sampling programs -in-cluding serology (Maes et al 2001;Fraile et al 2010;Hands et al 2010;Meyns et al 2010), bacteriological culture and PCR-testing (Hands et al 2010) -to slaughterhouse checks (Fraile et al 2010;Meyns et al 2010). In many European countries, Pasteurella multocida (P. multocida) producing dermonecrotic toxin (DNT; Christensen and Mousing 1992;Christensen et al 1994;Fablet et al 2011), Brachyspira hyodysenteriae (B. hyodysenteriae) (Christensen et al 1994), Lawsonia intracellularis (L. intracellularis) (Christensen et al 1994), Porcine Reproductive and Respiratory disease virus (PRRSv) (Christensen and Mousing 1992;Christensen et al 1994), Mycoplasma hyopneumoniae (M. hyopneumoniae; Christensen and Mousing 1992;Fraile et al 2010;Meyns et al 2010;Fablet et al 2011) and Actinobacillus pleuropneumoniae (A. pleuropneumoniae; Christensen and Mousing 1992;Fraile et al 2010;Meyns et al 2010;Fablet et al 2011), are considered to be the most important economic diseases in closed pig herds.…”

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confidence: 99%

“…In many European countries, Pasteurella multocida (P. multocida) producing dermonecrotic toxin (DNT; Christensen and Mousing 1992;Christensen et al 1994;Fablet et al 2011), Brachyspira hyodysenteriae (B. hyodysenteriae) (Christensen et al 1994), Lawsonia intracellularis (L. intracellularis) (Christensen et al 1994), Porcine Reproductive and Respiratory disease virus (PRRSv) (Christensen and Mousing 1992;Christensen et al 1994), Mycoplasma hyopneumoniae (M. hyopneumoniae; Christensen and Mousing 1992;Fraile et al 2010;Meyns et al 2010;Fablet et al 2011) and Actinobacillus pleuropneumoniae (A. pleuropneumoniae; Christensen and Mousing 1992;Fraile et al 2010;Meyns et al 2010;Fablet et al 2011), are considered to be the most important economic diseases in closed pig herds.…”

mentioning

confidence: 99%

“…Infection may already occur in the nursery unit (Calsamiglia and Pijoan 2000;Fano et al 2007;Sibila et al 2007;Villarreal et al 2010) with seroconversion occurring much later (Andreasen et al 2000). Recently, the withinherd prevalence of M. hyopneumoniae in slaughter pigs was found to be 79% in Belgium (Meyns et al 2010), and 82% in Spain (Fraile et al 2010).…”

mentioning

confidence: 99%

“…Seroconversion to A. pleuropneumoniae may occur up to five weeks post-infection (Sorensen et al 1997a) and occurs preferentially at 12 to 23 weeks of age (Chiers et al 2002). Recent studies in slaughter pigs showed a within-herd prevalence of A. pleuropneumoniae of 63% in Belgium (Meyns et al 2010), and 89% in Spain (Fraile et al 2010).…”

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confidence: 99%

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Health advantages of transition to batch management system in farrow-to-finish pig herds

Vangroenweghe¹,

Suls²,

Driessche³

et al. 2012

Vet. Med.

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Sow batch management systems have become more popular due to advantages in labour planning, piglet batch sizes, all-in all-out practices and health management. The present study investigated the potential health advantages of 10 selected farrow-to-finish pig herds before and after transition from a one week batch management system to a four or five week batch management system. Five different animal categories (gilts, sows, piglets, growers and finishers) were sampled at three time points (T0, T1 and T2) before and after transition to a four or five week batch management system. Different matrices of the animals were collected: blood, nasal swabs and faeces. Several economically important diseases were monitored through serology: Lawsonia intracellularis, Porcine Reproductive and Respiratory Syndrome virus (PRRSv), Mycoplasma hyopneumoniae, Actinobacillus pleuropneumoniae; and PCR-testing: Pasteurella multocida dermonecrotic toxin (DNT) and Brachyspira species, especially the major pathogenic Brachyspira hyodysenteriae. Following serological analysis, the percentage of positive animals per category and sampling occasion were calculated. Health improvement based on serology was defined as the reduction in the percentage of positive animals for a specific disease in a specified animal category. All samples were negative for P. multocida DNT and B. hyodysenteriae. Little to no improvement could be observed for PRRSv. For L. intracellularis an improvement could be observed in piglets (71%) and growers (56%; P < 0.05). For both of the respiratory pathogens, M. hyopneumoniae and A. pleuropneumoniae, significant improvement was observed in finishers (34 and 24%, respectively). In growers, only M. hyopneumoniae showed a significant improvement (34%). In conclusion, the transition from a one week batch management system to a four or five week batch management system in the present herds resulted in a reduction of the percentage of seropositive animals for three of the monitored economically important diseases: L. intracellularis, M. hyopneumoniae and A. pleuropneumoniae.

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Respiratory System

Yaeger¹,

Alstine²

2019

Diseases of Swine

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A cross-sectional study of risk factors associated with pulmonary lesions in pigs at slaughter

Cited by 105 publications

References 15 publications

Animal health and disease monitoring in the abattoir

Animal health and disease monitoring in the abattoir

Health advantages of transition to batch management system in farrow-to-finish pig herds

Respiratory System

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