Table 1. Least square means plus standard error (SE) of immunoglobulin M (IgM) and immunoglobulin G (IgG) titers and titers of total antibodies (IgTotal) binding chicken liver lysate (CLL).

		IgTotal			IgM			IgG
Line1	22	4	8	2	4	8	2	4	8
Hg	5.51a	5.10a	4.87a	6.33a	6.58a	6.89a	5.97a	5.85a	5.96a
Cg	3.71b	3.55b	3.63b	6.43a	6.22a	6.03a	3.98b	4.25b	3.65b
Lg	2.08c	2.16c	2.17c	4.27b	4.07b	3.60b	3.31b	3.09c	2.84b
SE	0.39	0.28	0.24	0.34	0.32	0.31	0.39	0.37	0.33
Line3	***	***	***	***	***	***	***	***	***

^a,b,cLines differ significantly (P<0.05) when different superscript.

¹Hg = genotypic high hens, Cg = control hens, Lg = genotypic low hens, (N = 15 birds/line).

²microgram/ml coating of CLL to ELISA plates.

³Line effect:

^***P<0.001.