Set limits on gains before puberty

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

How fast can you grow heifers before puberty without hurting first-lactation milk yield?

The limit may be 1.8 pounds per day, according to an analysis by researchers at Penn State University.

The researchers analyzed eight studies involving Holstein heifers that assessed the effect of average daily gain before puberty on first-lactation milk production. Only studies published within the past 15 years were eligible for the analysis.

The results of the analysis, reported in the November Journal of Dairy Science, indicate that maximum first-lactation milk yield can be achieved when Holstein heifers weighing between 330 and 706 pounds gain no more than 1.8 pounds per day. Growth rates beyond that hurt future milk yield.



Comments (0) Leave a comment 

Name
e-Mail (required)
Location

Comment:

characters left


Ag-Bag MX1012 Commercial Silage Bagger

"The Ag-Bag MX1012 Commercial Silage Bagger is an ideal engine driven mid-size bagger, designed to serve the 150 to 750 ... Read More

View all Products in this segment

View All Buyers Guides

)
Feedback Form
Leads to Insight