Table 1 Number of cows and records, number of sires, means and standard deviations (sd) of conception rates (CR) and protein yields (PY), and means and sd of average temperature-humidity index (THI) by trait in Holstein and Montbeliarde

Number of phenotyped cows

3,368,605

656,164

Number of herds

35,579

9850

Number of CR records

3,351,068

649,814

Number of PY records

10,245,692

1,966,985

Number of sires

5463

1612

Average number of daughters per sire (min–max)

617 (26–49,961)

407 (23–24,884)

Average CR % (sd)

44.5 (49.7)

54.6 (49.8)

Average PY g/d (sd)

839 (176)

740 (164)

Average THIf (sd)

51.3 (8.9)

47.4 (10.6)

Average THIp (sd)

50.7 (9.1)

47.3 (10.7)