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Table 5 An overview of the research material

From: Parity-dependent association between TNF-α and LTF gene polymorphisms and clinical mastitis in dairy cattle

Inter-calving period/lactation* No. of cows in herd % of cows with mastitis** Mean daily milk yield Mean lnSCC for herd
I 813 29.89 30.52 4.89
II 918 27.67 34.25 5.14
III 868 25.81 35.38 5.47
IV 613 29.36 34.89 5.75
V 395 35.70 33.60 6.00
VI 243 34.98 32.39 6.24
Total 990 51.41 31.82 5.58
  1. *The percentage of cows with mastitis was calculated for the whole inter-calving period while the mean daily milk yield and SCC – for the lactation period.
  2. **Cows affected by mastitis at least once in a given inter-calving period.