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Managing replacement and culling in dairy herds

Code: 9781801462334
Albert De Vries, University of Florida, USA

Chapter synopsis: Approximately one third of dairy cows are replaced every year. Replacement of dairy cattle is an important part of the cost of dairy production and an environmental sustainability concern. Primary culling reasons are reduced health and fertility. Reduced welfare often proceeds culling. This chapter focuses on factors that affect replacement and culling in dairy herds with a focus on cows. The act of culling is simple, but the risk factors and economic considerations are complex. The chapter first presents some data on culling risks and reasons, explores more in depth the effects of poor health on culling, and presents aspects of economic decision making regarding culling and replacement decisions.

DOI: 10.19103/AS.2020.0086.12
£25.00
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Table of contents 1 Introduction 2 Culling definitions, culling risks and culling reasons 3 Poor health and conformation as risk factors for culling 4 Herd effects on the risk of culling 5 Heifers 6 Cost of culling 7 Economic decision-making 8 Environmental impact 9 Future trends in research 10 Where to look for further information 11 References

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