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Table 3 The associations (standard error in parenthesis) between the TLR4-2021 genotypes and milk composition variables in cows within early, mid and late lactation

From: Polymorphisms in bovine immune genes and their associations with somatic cell count and milk production in dairy cattle

    Genotype1  
Trait Lactation Stage (days) Mean Trait Value2 TT TC CC P-value
Protein Percentage3 (*1000) 1 - 70 34.3 (3.3) 0 -0.15 (0.78) 1.07 (0.98) NS
  71 - 140 35.6 (3.9) 0 0.92 (0.82) 0.09 (1.04) NS
  141 - 305 39.3 (4.5) 0 0.23 (0.39) -1.17 (0.51) < 0.001
Fat Percentage3 (*1000) 1 - 70 42.9 (6.4) 0 0.12 (0.32) -0.26 (0.41) NS
  71 - 140 41.6 (7.9) 0 -0.06 (0.35) -0.61 (0.44) NS
  141 - 305 47.4 (9.2) 0 1.45 (0.91) -1.06 (1.15) < 0.01
  1. 1 Referent class is the TT genotype and is compared with the CT and CC genotype
  2. 2 Mean values observed for each phenotype investigated (standard deviation in parenthesis)
  3. 3 A value of 1, before multiplication, equates to 1 percentage unit
  4. NS = Not significant