Pig health and production surveillance in Denmark: sampling design, data recording, and measures of disease frequency

Christensen, Jette; Ellegaard, B.; Petersen, Bryan; Willeberg, Preben; Mousing, Jan

doi:10.1016/0167-5877(94)90107-4

Cited by 30 publications

(18 citation statements)

References 6 publications

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“…Besides affecting animal welfare negatively, clinical signs of lameness also have a negative impact on productivity and hence, economy (Jensen et al, 2007). Lameness in growing-finisher pigs has been found to be the third most common reason for antibiotic treatment in finisher herds (Christensen et al, 1994). Moreover, pigs with clinical signs of lameness have an increased risk of being euthanized (Engblom et al, 2008).…”

Section: Introductionmentioning

confidence: 98%

Quantifying the impact of lameness on welfare and profitability of finisher pigs using expert opinions

2012

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Section: Introductionmentioning

confidence: 98%

Quantifying the impact of lameness on welfare and profitability of finisher pigs using expert opinions

2012

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“…The effect of lameness on productivityand hence economy, has been investigated in other studies. In a study by Christensen et al (1994), lameness was the third most frequent cause of treatment and lameness represented 11% of all treatments given to finishers. The effect of lameness on the weight gain in piglets, has previously been examined (Zoric et al, 2003;Johansen et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The effect of lameness treatments and treatments for other health disorders on the weight gain and feed conversion in boars at a Danish test station

et al. 2007

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“…Enzootic occurrence of arthritis increases the production costs due to antibiotic treatments, and extra time is required for clinical surveillance in many herds. In a Danish investigation, lameness was the third most common cause of treatment with antibiotics in grower‐finisher pigs, the incidence being 0.11 for 1000 days at risk (Christensen et al., 1994). Lameness due to arthritis may be caused by several bacterial infections, e.g.…”

Section: Introductionmentioning

confidence: 99%

Mycoplasma hyosynoviae Arthritis in Grower-Finisher Pigs

Nielsen

Friis³

2001

J Vet Med Series A

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The aetiology of acute lameness in pigs 3-5 months of age in nine Danish herds with high incidences of lameness was investigated. Eighty-seven acutely lame pigs, that exhibited lameness of varying degree in the hind legs, were selected. Non-lame pigs were matched on pen, sex and weight. The lame pigs had soft fluctuating joint swellings (odds ratio (OR), 7.21; 95% confidence interval (CI), 3.41-15.47). No indication of suppurative arthritis was observed. Joint infection with Mycoplasma hyosynoviae was found by culture in 20% (17 of 86) of the lame pigs and in 8% (seven of 83) of the non-lame pigs. Lameness and joint infection with M. hyosynoviae were significantly associated. Other ordinary bacteria were not found in any case. Macroscopic osteochondrotic lesions were observed at slaughter in 47% (37 of 78) of the previously lame pigs and in 35% (55 of 158) of an enlarged group without history of lameness. The cubital joints were most frequently affected and a history of hind leg lameness was not statistically associated with osteochondrotic lesions at slaughter (OR, 1.69; 95% CI, (1.94-3.05), or joint infection with M. hyosynoviae at slaughter (OR, 0.88; 95% CI, 0.31-2.40). Arthritis due to M. hyosynoviae infection was the primary cause of acute and severe lameness in grower-finisher pigs. Moreover, M. byosynoviae was isolated from joints of several pigs without signs of lameness. This suggests that M. hyosynoriae may be present in joints without provoking clinical illness. The mean daily incidence of treatments due to lameness in the herds was 5.4 per 1,000 pigs. Joint disease implied 30-90 min extra labour for surveillance and treatment every day per 1,000 pigs, and 5% of the affected individuals were euthanized due to lameness. The average daily weight gains in the selected pigs until slaughter seemed unaffected by the lameness.

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Pig health and production surveillance in Denmark: sampling design, data recording, and measures of disease frequency

Cited by 30 publications

References 6 publications

Quantifying the impact of lameness on welfare and profitability of finisher pigs using expert opinions

Quantifying the impact of lameness on welfare and profitability of finisher pigs using expert opinions

The effect of lameness treatments and treatments for other health disorders on the weight gain and feed conversion in boars at a Danish test station

Mycoplasma hyosynoviae Arthritis in Grower-Finisher Pigs

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