Table 5

Daily weight gain (DWG) (g/day) (mean ± SD) and feed conversion rate (FCR) for each group (A-F).

Period

Parameter

Treatment group


A

B

C

D

E

F


D7-28

DWG

154.5 (72.2)

155.9 (64.4)

146.9 (64.6)

151.3 (49.6)

158.7 (42.0)

180.5 (49.0)

D28-56

DWG

415.5 (92.2)

353.9 (110.9)

315.6a (92.5)

359.2 (76.4)

338.9 (87.8)

469.1b (118.1)

FCR

1.38

1.18

1.30

1.42

1.50

1.31

D56-70

DWG

449.8a,b (252.5)

425.5a,b (213.3)

293.8a (157.9)

632.9b (143.0)

506.4a,b (221.7)

700.7b (222.0)

FCR

2.00

2.07

2.37

1.50

1.90

1.56

D70-84

DWG

697.1 (61.4)

679.9 (113.5)

505.7 (42.0)

552.8a,b(144.0)

653.2 (97.2)

654.9b (169.4)

FCR

1.77

1.72

2.13

1.92

1.87

1.78

D28-84

DWG

491.7 (84.7)

452.7 (146.4)

413.3 (63.2)

486.7 (76.1)

460.3 (101.6)

486.7 (106.9)

FCR

1.74

1.72

2.04

1.61

1.80

1.52


Legend: Groups A-E: n = 14 pigs per group; group F: n = 8 pigs.

Group A (F7.2C), B (F20.1L), C (B2V1W20 1A-F), D (J strain), E (positive control; non-vaccinated, challenge infected), F (negative control; non-vaccinated, non-challenged).

No FCR was measured during D7-28

Within a row, different superscripts correspond to significant differences between groups (P < 0.05). As FCR was measured at group level, no statistical analysis was done to compare the groups.

Villarreal et al. BMC Veterinary Research 2012 8:2   doi:10.1186/1746-6148-8-2

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