Table 2.

Structure of the data.

Variable	Data before Editing	Data after Editing
No. of sires	8765	4668
No. of records (cows and heifers)	64,464	34,928
No. of records (heifers only)	34,678	10,019
No. of heifers with phenotypes	15,465	10,019
No. of records (cows only)	29,786	24,909
No. of cows with phenotypes	15,466	7072
Number of cows with records as heifers	10,537	6690