Main Navigation
26 June 2026
Tags
Camelids
Cria Care

Failure of Passive Transfer

Understand risks, timing of colostrum, and plasma solutions. Contact our farm animal vets for expert support.

After 24 hours, this absorption mechanism closes, meaning that there is a very defined window during which colostrum must be received. If insufficient volume is received, or the colostrum is low in antibodies, the cria will not receive sufficient immunity from the dam and will struggle to remain disease free – we call this failure of passive transfer.  

The only way to supplement the crias immune system with antibodies at this point is to give a plasma transfusion. For this to happen, blood is taken from a healthy animal, spun down to remove the red blood cells, and the resulting plasma frozen. When needed, the plasma is defrosted and given intra-venously to the cria to provide a temporary immune system. 

You need to plan for this before the alpaca’s birth so that you have the plasma stored and ready to go. It takes a day to harvest the plasma which may be too long when you have an emergency. 

If you would like to have plasma ready for when the girls give birth please let us know and we will happily come and take the blood from suitable donors, spin it, and give you back the plasma in sterile bags which can easily be frozen. For more information and costings, please contact the practice. We are also happy to provide this service for other practices and their clients.  

Contact the Farm Animal Practice to discuss a case

Stay in the know  Related articles & advice

  1. Parasite Control

    Treating Chorioptic Mange Infection

    Chorioptic mange is one of the most common skin problems we see affecting camelids.  It is caused by a microscopic mite which feeds on dead skin cells, causing irritation which can be itchy as well as crusty flakey skin

opens in new window