In An Investigation in to the Biodynamic Preparations and their effecrs on the soil plants and animals
T H Parsons
The Nutritional Value of of food from conventional and bio-dynamic agriculture –
feeding trials to ascertain the effects of the fertility of rabbits, by Dr Staiger,
University of Bonn (1983)
Result: In the first generation only 58% of the mated does gave birth to
offspring, whilst in the second generation the performance of the animals fed with
bio-dynamically grown feed rose to 86% and was therefore significantly higher
statistically than in the reference group (which has 59%)