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Table 7 Genetic correlations of colostrum traits (horizontal) with first test milk, pre-parturition serum traits and milk production traits

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

Trait

Brix

T-IgGa

KLH-IgA

KLH-IgG

KLH-IgM

MDP-IgA

MDP-IgG

MDP-IgM

First test milk

 KLH-IgA

0.14 (0.39)

0.43 (0.55)

− 0.54 (0.51)

0.93 (0.51)

− 0.45 (0.48)

− 0.21 (0.41)

0.86 (0.46)

− 0.07 (0.44)

 KLH-IgG

0.66 (0.37)

0.26 (0.43)

0.47 (0.36)

0.79 (0.36)

0.58 (0.33)

0.41 (0.35)

0.98 (0.37)

0.43 (0.34)

 KLH-IgM

0.83 (0.84)

0.68 (0.89)

0.99 (0.75)

0.78 (0.40)

0.87 (0.20)

0.84 (0.24)

0.80 (0.30)

0.97 (0.21)

 MDP-IgA

0.02 (0.37)

− 0.22 (0.53)

0.59 (0.35)

0.82 (0.71)

0.50 (0.43)

0.59 (0.56)

1.00 (0.70)

0.47 (0.45)

 MDP-IgG

0.86 (0.64)

0.61 (1.25)

0.83 (0.49)

0.83 (0.64)

0.75 (0.28)b

0.59 (0.33)

0.97 (0.30)

0.59 (0.67)

 MDP-IgM

− 0.25 (4.68)

− 0.24 (4.79)

1.00 (0.99)

NE

0.98 (0.29)

0.72 (0.44)

NE

0.92 (1.40)

Pre-parturition serum

 KLH-IgA

− 0.21 (0.23)

− 0.13 (0.30)

0.40 (0.23)

0.20 (0.32)

0.63 (0.23)

0.92 (0.17)

0.55 (0.26)b

0.80 (0.19)

 KLH-IgG

− 0.12 (0.23)

0.30 (0.31)

− 0.02 (0.25)

0.60 (0.36)

− 0.40 (0.29)

− 0.22 (0.26)

0.43 (0.26)

− 0.44 (0.26)

 KLH-IgM

− 0.19 (0.32)

− 0.59 (0.42)

0.48 (0.36)

0.45 (0.49)

0.58 (0.38)

0.94 (0.52)b

0.45 (0.39)

0.85 (0.33)

 MDP-IgA

− 0.28 (0.23)

0.03 (0.31)

0.45 (0.24)

0.23 (0.33)

0.39 (0.25)

0.79 (0.21)

0.98 (0.24)

0.68 (0.24)

 MDP-IgG

0.04 (0.33)

0.35 (0.43)

0.70 (0.32)

0.99 (0.35)

− 0.03 (0.35)

0.41 (0.31)

0.82 (0.35)

− 0.16 (0.37)

 MDP-IgM

− 0.43 (0.29)

− 0.30 (0.35)

0.43 (0.30)

− 0.04 (0.44)

0.36 (0.31)

0.89 (0.30)

0.23 (0.33)

0.79 (0.31)

Milk production

 Milk yield

0.25 (0.17)

− 0.02 (0.28)

0.04 (0.18)

0.36 (0.26)

− 0.07 (0.19)

0.12 (0.18)

0.15 (0.20)

− 0.10 (0.20)

 LASCS

NE

0.03 (0.29)

NE

NE

NE

− 0.42 (0.87)

0.21 (0.27)

− 0.15 (0.24)

 Fat %

− 0.15 (0.13)

0.15 (0.21)

NE

NE

NE

0.00 (0.14)

0.09 (0.15)

0.08 (0.15)

 Protein %

0.00 (0.12)

0.23 (0.20)

NE

NE

NE

0.08 (0.13)

0.14 (0.14)

0.13 (0.14)

  1. Numbers in parenthesis are the standard errors
  2. Bold characters highlight significant genetic correlations
  3. The natural antibodies are coded as follows: MDP Muramyl dipeptide, KLH Keyhole limpet hemocyanin, IgA Immunoglobulin A, IgG Immunoglobulin G, IgM Immunoglobulin M
  4. LASCS lactation average somatic cell score; NE not estimable
  5. aVariance components for correlations were estimated using a square root transformation
  6. bSuggestive significance (0.05 < p-value < 0.10)