Table 1 Genotypes and distribution of E. bieneusi in dairy cattle by age group in Henan and Ningxia

Pre-weaned calves (<3)

1 M

76/234 (32.5)

J (30); I (28); BEB4 (3); BEB6 (1); CM8 (10); CHC4 (1); EbpA (1); EbpC (1); O (1)

2 M

51/200 (25.5)

J (22); I (7); BEB6 (4); CM8 (7); CD6 (1); COS-1 (1); CHC3 (1); CHC5 (1); EbpC (4); D (2); H (1)

Subtotal

127/434 (29.3)

J (52); I (35); BEB4 (3); BEB6 (5); CD6 (1); CM8 (17); COS-1 (1); CHC3 (1); CHC4 (1); CHC5 (1); EbpA (1); EbpC (5); D (2); H (1); O (1)

Post-weaned calves (3–12)

3 M

16/85 (18.8)

J (4); I (2); BEB4 (1); BEB6 (4); CM8 (1); CHC2 (1); COS-1 (2); EbpA (1)

4 M

15/59 (25.4)

J (8); I (2); BEB4 (2); CHC1 (1); CHG2 (1); COS-1 (1)

5 M

15/46 (32.6)

J (8); I (3); BEB4 (3); COS-1 (1)

6 M

6/35 (17.1)

J (1); I (1); BEB4 (3); CHG3 (1)

>6 M

11/39 (28.2)

I (10); BEB4 (1)

Subtotal

63/264 (23.9)

J (21); I (18); BEB4 (10); BEB6 (4); CM8 (1); CHC1 (1); CHC2 (1); CHG2 (1); CHG3 (1); COS-1 (4); EbpA (1)

Juveniles & Adults (>12)

J (4); I (8); BEB4 (2); BEB6 (8); BEB8 (1); EbpC (1)

Total

J (77); I (61); BEB4 (15); BEB6 (17); BEB8 (1); CD6 (1); CM8 (18); COS-1 (5); CHC1 (1);CHC2 (1); CHC3 (1); CHC4 (1); CHC5 (1); CHG2 (1); CHG3 (1); EbpA (2); EbpC (6); D (2); H (1); O (1)