Skip to main content

Advertisement

Table 1 Descriptive statistics of female fertility traits in a Chinese Holstein population

From: Variance components and correlations of female fertility traits in Chinese Holstein population

Traita N Mean SD Minimum Maximum
IFLh 88,647 32.1 69.2 0 365
CRh 88,647 0.626 0.484 0 1
AISh 88,647 1.742 1.286 1 8
NRR56h 88,647 0.732 0.443 0 1
ICF 126,985 82.1 37.3 20 230
DO 126,985 161.6 104.9 20 595
IFLc 126,985 79.5 100.1 0 365
CRc 126,985 0.356 0.479 0 1
AISc 126,985 2.777 1.994 1 8
NRR56c 126,985 0.584 0.493 0 1
  1. a IFL interval from first to last insemination, CR conception rate at first insemination, AIS number of inseminations per conception, NRR56 non-return rate at 56 days after first insemination, ICF interval from calving to first insemination, DO days open. For traits expressed in both heifers and cows, a suffixes h (for heifers) or c (for cows) was attached to the trait abbreviations