Factors Affecting Productive Lifespan of Dairy Cows – Dr. Albert De Vries

May 13, 2021

In this video, Dr. Albert De Vries explains the economical drivers and risk factors that affect the productive lifespan of dairy cows.

What You Will Learn

• The average productive lifespan of high producing dairy cows is 3 to 4 years. Studies have shown the risk of culling mature cows is much higher in the early days of lactation (day 20-40) and again later in lactation (days 200+) due to cows being open.
• The four events per lactation that take place in non-culled cows and the risk factors that would result in culling such as, sick, lame, not-pregnant, low milk yield, or poor temperament. 
• How to determine how long the average cows should remain in the herd and the model to support this: $/Cow/Year.  
• What’s the impact of increasing longevity of the herd?

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Dr. Albert De Vries

Professor of Animal & Dairy Science, University of Florida

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