Risk factors for culling Holstein-Friesian dairy cows

M Bell, E Wall, G Russell, DJ Roberts, G Simm

Research output: Contribution to journalArticle

Abstract

Risk factors associated with voluntary and involuntary culling within a Holstein-Friesian dairy cow research herd were identified. Data were studied from 3498 completed lactations from the Langhill Holstein-Friesian dairy herd between January 1990 and June 2008. During this period the cows were based on two different farms in Scotland. The culling rate of the milking herd was approximately 25 per cent per annum. Approximately 68 per cent of cows culled were classified as involuntary. The association between different risk factors and the incidence of culling was investigated using a general linear mixed model. Of the 838 cows culled, 59 per cent were culled before the fourth lactation. Culling was associated with cows that had an assisted calving (P<0.01), aborted (P<0.01) and/or suffered from mastitis (P<0.05). Cows that were culled were also more likely to be older cows (P<0.01), have a low number of milking days (P<0.001) and/or a greater number of days from calving to conception (P<0.01). Culling was also associated with conception failure (r=0.752, P<0.001). Further work might help reduce the number of animals culled involuntarily, by identifying key factors associated with the incidence of an assisted calving, abortion and mastitis, and improving milking and fertility performance using detailed data from the Langhill herd.
Original languageEnglish
Pages (from-to)238 - 240
Number of pages3
JournalVeterinary Record
Volume167
Publication statusFirst published - 2010

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culling (animals)
risk factors
Holstein
dairy cows
calving
cows
herds
milking
mastitis
incidence
abortion (animals)
dairy herds
Scotland
lactation
farms
animals

Bibliographical note

62170031

Keywords

  • Culling
  • Dairy cows
  • Holstein Friesian
  • Risk factors

Cite this

Bell, M ; Wall, E ; Russell, G ; Roberts, DJ ; Simm, G. / Risk factors for culling Holstein-Friesian dairy cows. In: Veterinary Record. 2010 ; Vol. 167. pp. 238 - 240.
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Bell, M, Wall, E, Russell, G, Roberts, DJ & Simm, G 2010, 'Risk factors for culling Holstein-Friesian dairy cows', Veterinary Record, vol. 167, pp. 238 - 240.

Risk factors for culling Holstein-Friesian dairy cows. / Bell, M; Wall, E; Russell, G; Roberts, DJ; Simm, G.

In: Veterinary Record, Vol. 167, 2010, p. 238 - 240.

Research output: Contribution to journalArticle

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AU - Wall, E

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AB - Risk factors associated with voluntary and involuntary culling within a Holstein-Friesian dairy cow research herd were identified. Data were studied from 3498 completed lactations from the Langhill Holstein-Friesian dairy herd between January 1990 and June 2008. During this period the cows were based on two different farms in Scotland. The culling rate of the milking herd was approximately 25 per cent per annum. Approximately 68 per cent of cows culled were classified as involuntary. The association between different risk factors and the incidence of culling was investigated using a general linear mixed model. Of the 838 cows culled, 59 per cent were culled before the fourth lactation. Culling was associated with cows that had an assisted calving (P<0.01), aborted (P<0.01) and/or suffered from mastitis (P<0.05). Cows that were culled were also more likely to be older cows (P<0.01), have a low number of milking days (P<0.001) and/or a greater number of days from calving to conception (P<0.01). Culling was also associated with conception failure (r=0.752, P<0.001). Further work might help reduce the number of animals culled involuntarily, by identifying key factors associated with the incidence of an assisted calving, abortion and mastitis, and improving milking and fertility performance using detailed data from the Langhill herd.

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