Genetic parameters of colostrum and calf serum antibodies in Swedish dairy cattle

Table 5 Estimated genetic correlations (below diagonal) and phenotypic correlations (above diagonal) between calf serum traits

Trait	STP	S-IgG^a	KLH-IgA	KLH-IgG	KLH-IgM	MDP-IgA	MDP-IgG	MDP-IgM
STP	–	0.67 (0.02)	0.49 (0.03)	0.45 (0.04)	0.37 (0.04)	0.48 (0.03)	0.43 (0.04)	0.53 (0.03)
S-IgG^a	0.91 (0.18)	–	0.57 (0.03)	0.59 (0.03)	0.40 (0.04)	0.60 (0.03)	0.62 (0.03)	0.61 (0.03)
KLH-IgA	0.61 (0.25)	0.70 (0.16)^b	–	0.44 (0.04)	0.53 (0.03)	0.76 (0.02)	0.49 (0.03)	0.71 (0.02)
KLH-IgG	0.71 (0.46)	0.74 (0.20)	0.23 (0.25)	–	0.40 (0.04)	0.53 (0.03)	0.66 (0.03)	0.54 (0.03)
KLH-IgM	0.47 (0.52)	0.59 (0.28)	0.80 (0.14)^b	0.61 (0.28)	–	0.51 (0.03)	0.39 (0.04)	0.62 (0.03)
MDP-IgA	0.67 (0.31)	0.87 (0.13)	0.91 (0.08)	0.86 (0.14)^b	0.90 (0.17)^b	–	0.59 (0.03)	0.77 (0.02)
MDP-IgG	0.83 (0.35)	0.90 (0.15)^b	0.80 (0.16)^b	0.87 (0.13)^b	0.77 (0.25)	0.99 (0.11)	–	0.49 (0.03)
MDP-IgM	0.83 (0.26)	0.81 (0.12)	0.84 (0.09)	0.62 (0.18)	0.91 (0.11)	0.96 (0.06)	0.77 (0.02)^b	–

Numbers in parenthesis are the standard errors
Bold characters highlight significant genetic correlations
The natural antibodies are coded as follows: MDP Muramyl dipeptide, KLH Keyhole limpet hemocyanin, IgA Immunoglobulin A, IgG Immunoglobulin G, IgM Immunoglobulin M
STP serum total protein, S-IgG serum IgG
^aVariance components for correlations were estimated using a square root transformation
^bSuggestive significance (0.05 < p-value < 0.10)

ISSN: 1297-9686