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Table 3 Number of farms (%) based on replacement origin, M. hyopneumoniae health status and the verification of replacement status

From: Survey on Mycoplasma hyopneumoniae gilt acclimation practices in Europe

No. of farms according to the replacement source
(%)
No. of farms according to M. hyopneumoniae health status (%) No. of farms which verify the health status of the replacement (%) Method used for replacement verification (%)
ELISA PCR ELISA + PCR Others
Purchased 145 (45.2) Known 126 (86.9) Positive 61/126 (48.4) 4/61 (6.6) 2/4 (50.0) 0/4 (0.0) 2/4 (50.0) 0/4 (0.0)
Negative 36/126 (28.6) 10/36 (27.8) 8/10 (80.0) 1/10 (10.0) 1/10 (10.0) 0/10 (0.0)
Non-specified 29/126 (23.0) 24/29 (82.8) 24/24 (100.0) 0/24 (0.0) 0/24 (0.0) 0/24 (0.0)
Unknown 19 (13.1) NA NA NA NA NA NA NA
Own 103 (32.1) Known 86 (83.5) Positive 60/86 (69.8) 12/60 (20.0) 10/12 (83.3) 2/12 (16.7) 0/12 (0.0) 0/12 (0.0)
Negative 25/86 (29.1) 22/25 (88.0) 21/22 (95.5) 0/22 (0.0) 0/22 (0.0) 1/22 (4.5)
Non-specified 1/86 (1.1) 0/86 (0.0) NA NA NA NA
Unknown 17 (16.5) NA NA NA NA NA NA NA
Mixed 73 (22.7) Known 68
(93.2)
Positive 40/68 (58.8) 2/40 (5.0) 1/2 (50.0) 0/2 (0.0) 0/2 (0.0) 1/2 (50.0)
Negative 27/68 (39.7) 4/27 (14.8) 3/4 (75.0) 1/4 (25.0) 0/4 (0.0) 0/4 (0.0)
Non-specified 1/68 (1.5) 1/1 (100.0) 0/1 (0.0) 0/1 (0.0) 0/1 (0.0) 1/1 (100.0)
Unknown 5 (6.8) NA NA NA NA NA NA NA
  1. NA non-applicable