Table 1.

IgG1 antibody titers to BCoV

Group	Calf	Serum total proteins (g/dl)	0 days	7 days	14 days	21 days	28 days	35 days	SC	BCoV detection (ELISA)
APT	66	7.0	1024	16	256	1024	1024	1024	Yes	9, 10, 11 days
	71	7.8	4096	1024	1024	1024	1024	1024	No	No
	74	8.4	4096	4096	4096	4096	4096	1024	No	No
	83	6.8	1024	256	1024	1024	1024	256	No	No
	610	7.5	1024	4096	16	4096	1024	1024	Yes	No
	614	6.2	1024	1024	1024	256	256	256	No	No
	72	8.4	4096	4096	1024	1024	256	1024	No	No
	85	7.2	4096	256	1024	1024	1024	64	No	No
	615	7.8	1024	256	1024	256	256	1024	No	No
	65	7.5	1024	1024	1024	256	256	256	No	No
	80	8.6	4096	4096	4096	16	1024	4096	Yes	No
	81	6.6	4096	1024	1024	64	4096	1024	Yes	No
	84	6.5	1024	1024	256	64	64	64	No	No
	87	7.8	4096	4096	4096	4096	1024	1024	No	No
	611	7.0	1024	4096	1024	1024			Dead	15, 16 days
	612	6.0	4096	4096	1024	1024	1024	64	No	No
	613	7.5	4096	4096	4096	1024	1024	256	No	No
FPT	77	5.9	256	256	256	256	1024	1024	No	No
	68	6.8	256	256	64	256	256	1024	Yes	No
	76	7.6	64	64	256	65 536	16 384	4096	Yes	6, 7 days
	78	5.4	16	16	256	1024	4096	4096	Yes	No
	79	6.4	256	256	256	256	256	256	No	No
	82	5.9	16	256	1024	4096	1024	4096	Yes	No
	75	6.4	256	16	256	256	256	1024	Yes	No
APT Log10 average			3.38A	3.15A	2.99A	3.01A	2.86A	2.66B	23.5% (5/17)A
FPT Log10 average			1.9C	1.9C	2.41B	2.68B	3.01A	3.18A	71.4% (5/7)A

BCoV IgG1 Ab titers in serum of each calf measured every seven days. APT: acceptable passive transfer; FPT: failure of passive transfer; SC: seroconversion; BCoV detection is shown in days of experiment. Means in the same column with different superscript upper case letters differed significantly (repeated measurements over time ANOVA Test, p < 0.05).