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Table 2 Effects of calving diseases and traits on culling variables for 6775 lactations.

From: What are Production Diseases, and How do We Manage Them?

 

Primiparous cowsa

Multiparous cowsb

Culled before:

1st test day

6th test dayc

1st test day

6th test dayc

Odds Ratios:

Adjusted

Crude

Adjusted

Adjusted

Crude

Adjusted

Induction

   

2.3**

  

Twins

   

1.7*

1.5*

 

Stillbirth

3.3**

1.7*

1.8*

 

1.7**

1.4†

Prolapsed uterus

   

10.5**

5.9**

6.1**

Edema

0.4†

     

Mastitis at calving

23.3**

11.2**

12.1**

9.4**

6.0**

6.2**

Milk fever

   

3.7**

  

Retained placenta

0.5*

   

1.3*

 

Primary metritis

0.5**

   

1.3*

 

Displaced abomasum

 

6.8**

7.5**

3.5**

4.2**

3.5**

Ketosis

 

2.5*

  

1.6**

 

Dry for <60 days

    

1.3*

1.2†

Dry for >75 days

   

1.6**

1.4**

1.4**

  1. †p < 1.0. * p < 0.05. **p < 0.01. aHerd, year of calving, summer and other diseases and traits were included in all models. Herd, year of calving, and summer were included in models of crude odds ratios. bHerd, year of calving, summer, parity and other diseases and traits were included in all models. cHerd, year of calving, summer and parity were included in models of crude odds ratios.
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Acta Veterinaria Scandinavica

ISSN: 1751-0147