Biofertilisers, are they good for youngstock

[honetpot]

Digestate is becoming more common as a fertiliser, it is the waste from biofuel making and in theory its pasteurised, so it should be safe to spread, it's made from plant and animal bi products but has anyone done any studies of how effects animal health.
https://www.awsmfarming.co.uk/agricultural-contracting-services/digestate-spreading/
What started me thinking.
https://thefarmingforum.co.uk/index...oor-growth-rates-with-cows-and-calves.340709/