Conversion formulae for breed: Holstein
Conversion formulae for: Poland (on black & white base)                    31-03-2026
 
Formulae for CONFORMATION
 
stature                        : NLD =      65.2783 +     0.3214 * POL
chest width                    : NLD =      69.7947 +     0.2696 * POL
body depth                     : NLD =      72.4668 +     0.2676 * POL
angularity                     : NLD =      70.8406 +     0.2755 * POL
rump angle                     : NLD =      63.7922 +     0.3364 * POL
rump width                     : NLD =      70.9628 +     0.2742 * POL
rear leg set side              : NLD =      76.7208 +     0.2453 * POL
rear leg set rear              : NLD =      75.4781 +     0.1915 * POL
foot angle                     : NLD =      76.6405 +     0.2003 * POL
fore udder attachment          : NLD =      62.9603 +     0.3207 * POL
rear udder height              : NLD =      64.6007 +     0.3168 * POL
udder support                  : NLD =      77.5631 +     0.2180 * POL
udder depth                    : NLD =      59.3199 +     0.3600 * POL
front teat placement           : NLD =      65.6143 +     0.3186 * POL
front teat length              : NLD =      69.5216 +     0.3125 * POL
rear teat placement            : NLD =      66.6031 +     0.3244 * POL
overall udder                  : NLD =      61.2182 +     0.3327 * POL
overall feet and legs          : NLD =      76.0275 +     0.1639 * POL
locomotion                     : NLD =      77.4786 +     0.1587 * POL
body condition score           : NLD =      65.8015 +     0.3216 * POL
 
Formulae for PRODUCTION
 
milk yield                     : NLD =    -436.5554 +     1.3590 * POL
fat yield                      : NLD =     -36.5262 +     1.1091 * POL
protein yield                  : NLD =     -33.6794 +     1.4758 * POL
 
Formulae for LONGEVITY
 
longevity                      : NLD =   -1448.8081 +    12.2680 * POL
 
Formulae for UDDERHEALTH
 
somatic cell score             : NLD =      66.8690 +     0.2977 * POL
udder health                   : NLD =      70.0710 +     0.2777 * POL
 
Formulae for FERTILITY
 
heifer conception rate         : NLD =      71.8552 +     0.2662 * POL
interval calving-1st insem     : NLD =      71.4142 +     0.2615 * POL
conception rate                : NLD =      77.7789 +     0.2153 * POL
interval 1st-last insem        : NLD =      71.8084 +     0.2795 * POL
calving interval               : NLD =      68.6906 +     0.2964 * POL
 
Formulae for CALVING TRAITS
 
direct calving ease            : NLD =      68.2463 +     0.2900 * POL
maternal calving ease          : NLD =      74.9430 +     0.2437 * POL
direct stillbirth              : NLD =      83.6831 +     0.1525 * POL
maternal stillbirth            : NLD =      75.9735 +     0.2309 * POL
 
Formulae for WORKABILITY
 
milking speed                  : NLD =      84.1350 +     0.1629 * POL
temperament                    : NLD =      92.2879 +     0.0733 * POL