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Table 1 Data structure, arithmetic means and standard deviation (in brackets)

From: Genetic parameters for daily milk somatic cell score and relationships with yield traits of primiparous Holstein cattle in Iran

Observations (n)

1,078,966

Herds (n)

268

Sires (n)

1,930

Dams (n)

107,372

Cows (n)

146,765

SCS (units)

2.433 (1.149)

Milk yield (kg)

32.82 (7.36)

Fat yield (kg)

1.075 (0.333)

Protein yield (kg)

1.006 (0.239)

Days in milk

151.36 (83.30)

CGa

15,517

  1. aCG = contemporary group
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Journal of Animal Science and Technology

ISSN: 2055-0391