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Table 2 Information on samples collected in layer flocks during phase 2 (2015–2017)

From: Investigation on eggshell apex abnormality (EAA) syndrome in France: isolation of Mycoplasma synoviae is frequently associated with Mycoplasma pullorum

Case number Regiona Production systemb Layer age (in weeks) Sample type (swabs) Number of samples collected MS PCR detectionc
1 IF FC 52 trachea/cloaca 30/30 26/15
2 ARA ALT 62 albumen/yolk 15/15 3/0
3 PACA FC 60 trachea/cloaca 30/30 13/1
4 PACA FC 54 albumen/yolk 30/30 0/0
5 B FC 52 albumen/yolk 34/34 1/0
6 B FC 56 trachea/cloaca 12/12 9/2
7 NA FC 56 trachea/cloaca 32/32 24/1
8 B FC 58 trachea/cloaca 30/30 25/2
9 B FC 60 trachea/cloaca 30/30 20/1
10 B FC 65 trachea/cloaca/albumen/yolk 30/30/9/9 9/1/0/0
11 ARA ALT 12 trachea 10 9
12 BFC FC 42 trachea 15 11
13 ARA ALT 40 trachea/albumen 20/1 18/0
14 BFC FC 51 trachea 20 17
15 ARA FC 36 albumen/yolk 10/10 0/0
16 ARA FC 64 trachea/cloaca 30/30 20/1
17 BFC FC 62 trachea/cloaca 21/21 10/0
18 B FC 60 trachea/cloaca 30/30 20/7
19 B FC 68 trachea/cloaca 30/30 0/0
20 ARA FC 60 trachea/cloaca/albumen/yolk 21/21/12/12 2/2/0/1
21 BFC FC 49 trachea/cloaca 20/15 15/2
22 ARA FC 52 trachea 15 12
23 B ALT 61 trachea 15 4
24 B ALT 60 trachea 9 1
25 ARA FC 18 trachea/cloaca 30/30 17/4
26 B FC 18 trachea 15 14
27 B FC 24 trachea 18 11
28 B FC 34 trachea 31 14
  1. aARA Auvergne-Rhône-Alpes, B Bretagne, BFC Bourgogne-Franche-Comté, IF Ile de France, NA Nouvelle Aquitaine, PACA Provence-Alpes-Côte d’Azur
  2. bFC furnished cages, ALT alternative systems (barn, free-range, organic)
  3. c Number of MS positive samples (MS PCR performed on initial suspensions and after culture)