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Table 8 Pearson correlation between milk yield (MY), nitrogen use efficiency (NUE), nitrogen loss (NL), DMI_a, N intake and N output1

From: Predicting nitrogen use efficiency, nitrogen loss and dry matter intake of individual dairy cows in late lactation by including mid-infrared spectra of milk samples

Item

MY

NUE

NL

DMI_a

N intake

N output

MY

1.00

     

NUE

0.46

1.00

    

NL

0.15

−0.74

1.00

   

DMI_a

0.40

−0.55

0.96

1.00

  

N intake

0.40

−0.55

0.96

1.002

1.00

 

N output

0.96

0.50

0.13

0.39

0.39

1.00

  1. 1MY daily milk yield, NUE nitrogen use efficiency, NL nitrogen loss, DMI_a  3-d moving average of dry matter intake. P values < 0.001 for all combinations in this table
  2. 2The correlation coefficient between DMI_a and N intake is 1, because N intake has a linear relationship with DMI_a
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891