Abstract
Impact of milk production and important management factors on the process of dry-off in lactating dairy cows (2001)
Highlights
The dry period represents a crucial phase of the lactation cycle in order to achieve optimal productivity in the lactation
A study of 250 cows located in Canada and the United States revealed the rate of new mammary infections was 9.9% during the dry period
The odds of a cow developing a new infection was three times greater if the cow was producing more than 5 kg of milk
Summary
The dry period represents a crucial phase of the lactation cycle in order to achieve optimal productivity in the lactation. Average duration of herd dry periods is correlated significantly with herd average milk production. As days dry deviate from 60 days, average milk production is negatively affected. Dairy herd managers justifiably aim to dry cows off to achieve dry periods of adequate duration. As the genetic potential for milk production of cows continues to increase, it becomes a greater challenge to move cows from lactation to the dry period. It is surprising that very little is known about the impact various approaches associated with this management event have on udder health
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