Hyst is capable of producing feed of excellent quality even starting from raw materials of very little nutritional value such as corn and cotton stalks and peanut shells, currently deemed unusable even for less demanding animals.

Already in 1982, Prof. Gianfranco Piva, director of the Institute of Nutrition and Food Sciences at the Catholic University of Piacenza, presented at the 33rd Annual Conference of the European Association of Animal Production the results of experiments on raw materials intended for animal nutrition¹.

On that occasion, from 100 kg of alfalfa flour with low nutritional value (U.F.=0.62)² 13 kg of “valuable” flour were produced, with an increase of more than 50% in nutritional value (U.F. = 0.94). The remaining 87 kg were practically unaltered and maintained the characteristics of the starting material. “The digestibility of dry matter – commented Prof. Piva – shows extremely high values (between 89 and 97%)”³.

Several years later, Prof. Luca Malagutti (Department of Animal Science, University of Milan) demonstrated that from nutritionally “poor” straws, mainly used as bedding in stables, it was possible to obtain, through the Hyst system, products with highly improved characteristics in terms of protein content, starch and nutritional value.

This too is a very important result from the food security point of view because it means increasing the resources available to livestock by providing forage of the best quality throughout the year. In many semi-arid areas straw is in fact an essential food during the dry season when pastures do not provide nourishment to the animals.

(F) finer material obtained from processing.

1) Piva G., Pietri A., Taccagni A., A new tecnique of physical separation to increase the nutritive value of feeds, 33a E.A.A.P. Annual Conference, Leningrado, 1982.
2) U.F. Forage Unit for milk production.
3) Piva, Et Al., 1982.