1/3th of first colostrum unsuited for newborn calves because of high bacterial count. Frozen spare colostrum is at least double as bad…
The reason: insufficient cleaning of materials for collection and feeding of colostrum.
A too high bacterial count reduces the uptake of antibodies from colostrum, plus the bacteria challenge the immune system and health of the young calf. Not a good way to start your life as a future milking cow...
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'Bacterial count in the first meal of colostrum'
'bactarial count in frozen spare supply of colostrum'.