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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