07/18/2026
Arguably the most important first step in the life of any calf is successful establishment of passive immunity through colostrum management. This key touchpoint ensures easy newborn calf management for weeks in the future and improved pay price for your bull calves.
Colostrum replacers occasionally need fed, for a variety of reasons. Understanding the key details of absorption, allows colostrum replacer manufacturers to optimize their product and therefore your success.
How does dilution impact the absorption of the colostrum replacer, based on the rate of abomasal emptying? Does this impact the calf’s IgG absorption and ultimately success of passive transfer? Listen in to Dr. Alberto Lopez has he describes the results of his recently released research and observations from the field.
Topics of discussion
1:43 Introduction of Dr. Alberto Lopez
2:39 Project design/treatments
3:08 150 IgG replacer used
4:55 Different CR products on the market
5:23 Osmolarity in colostrum
6:44 Maternal colostrum enhancement – impact on osmolarity
8:17 Path of colostrum once it leaves the tube
8:33 High osmolarity takes longer to feed, and digest
9:58 Should producers measure osmolarity?
11:17 Measuring / tracking successful transfer of passive immunity (STPI)
13:29 Calf buyer pay price
15:03 How did dilution impact IgG absorption
16:06 IgG upper limit maxing out absorption
17:27 Abomasal emptying
22:23 No difference in IgG absorption in differing dilution
27:35 What do you want ‘boots on the ground’ dairymen to know about your project
Featured Article:
The effect of dilution of colostrum replacer on IgG absorption, abomasal emptying rate, and gastrointestinal permeability in newborn Holstein calves
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Arguably the most important first step in the life of any calf is successful establishment of passive immunity through colostrum management. This key touchpoint ensures easy newborn calf management for weeks in the future and improved pay price for your bull calves. Colostrum replacers occasionally....
