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Table 2 Final mixed linear regression models of the effect of mastitis-causing pathogens and somatic cell count on milk composition of composite milk samples in Gyr cows 1

From: Effect of somatic cell count and mastitis pathogens on milk composition in Gyr cows

  Lactose, % Protein, % Fat, % Nonfat solids, % Total solids, %
Fixed effects β SE P-value β SE P-value β SE P-value β SE P-value β SE P-value
Intercept 4.755 0.053   3.432 0.061   2.477 0.348   9.168 0.073   11.655 0.387  
Seasonality2                
 Dry Ref. Ref. Ref. Ref. Ref.
 Rainy −0.243 0.028 <.0001 0.391 0.032 <.0001 0.616 0.096 <.0001 0.141 0.038 <.0003 0.746 0.106 <.0001
SCC3 −0.0002 0.00001 <.0001 0.00004 0.00001 <.002 0.0003 0.00004 <.0001 −0.0001 0.00002 <.0001 0.0001 0.00004 0.002
  1. 1 A total of 764 observations were used in this analysis. 2Seasonality (1 = rainy season, October to March; 0 = dry season, April to September), 3SCC: somatic cell count (x 1000 cells/mL), β: estimated coefficients, SE: standard error for the coefficient, Ref.: reference.