There is a huge difference in colostrum replacement and colostrum supplement. A good quality replacement has over 100 grams of IgG (immunoglobulins). Colostrum replacement is used in calves when you are not sure if they have nursed or if you know they haven't/can't nurse. The calf must be fed the WHOLE bag over several feedings within a few hours to receive enough IgG.
Supplement should contain more than 50 grams of IgG. It is used when you know the calf has nursed and you are concerned they didn't receive enough or a good enough quality of colostrum. Again the calf must receive the WHOLE bag broken up into several feedings over a few hours.
It is vital you follow the directions for mixing on the bag. We understand this topic is a little confusing but giving the wrong colostrum can affect a calf for life. If you would like more information, please give us a call!
This video does a great job on explaining passive transfer in calves. The University of Nebraska-Lincoln put this together for dairy producers but it is still just as relevant for you beef guys.
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This blog is regularly updated by veterinarians at Animal Clinic Ltd.