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Table 3 Overview of significant associations between performance/disease incidences and type of housing/herd size (20 and 50 cows) as shown in Table 1 and 2 and Fig. 2 and 3.

From: Housing system and herd size interactions in Norwegian dairy herds; associations with performance and disease incidence

 

Housing system

Herd size

Interactions

Milk per cow-year

xx

x

xx

Fertility status (FS-index)

xxx

x

 

Calving interval

xxx

x

 

BMSCC

 

xx

 

Mastitis, all cases

 

xxx

 

Teat injuries

xxx

xxx

 

Ketosis

xxx

x

 

Indigestions

 

xx

x

Anoestrus

xx

  

Metritis

x

  

Cystic ovaries

x

  

All diseases

 

x

 
  1. x = p < 0.05, xx = p < 0.01, xxx = 0.001