Maximizing passive immunity

 Resize text         Printer-friendly version of this article Printer-friendly version of this article

Newborn calves must rely on the immune protection they receive from colostrum until their own immune system starts to function at around 6 weeks of age. Dr. Kimberly Morrill, Cornell University Extension Dairy Specialist, says it is important to deliver high-quality colostrum to every newborn calf within the first hours of life. Specifically:

  • Calves should receive their first feeding of high-quality colostrum within 4 hours of birth.
  • The longer you wait, the less IgG the calf is able to absorb.
  • The less IgG the calf absorbs, the more susceptible it is to disease pathogens, such as those that cause scours and pneumonia.
  • Calves should receive a minimum of 10% of their bodyweight in colostrum within the first 4 hours of life.

Morril’s additional guidelines on colostrum quality and cleanliness can be found here.

 

Source: Cornell University Cooperative Extension dairy fact sheet, by Kimberly Morrill, PhD.



Comments (0) Leave a comment 

Name
e-Mail (required)
Location

Comment:

characters left


Caterpillar Small Wheel Loaders

Cat® Small Wheel Loaders provide superior performance and versatility to help agriculture producers improve productivity and efficiency. An extensive range ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Leads to Insight