Optimizing Alfalfa Processing for Better Pig Feed

Optimizing pig feed quality at Sasov Biofarm in the Czech Republic through advanced separation of alfalfa leaves and stems. Since 2000, the farm has been the largest organic pig farm in the country. Low daily weight gains and high feed consumption were linked to insufficient non-structural carbohydrates in feed. Dried alfalfa, initially purchased and later processed into flour on-site, became a key protein source. In 2011, a biogas-powered drying room was built for high-quality alfalfa production. To overcome high fibre content limiting feed inclusion, a dedicated separation line using vibrating screen sorters and drum cleaners was developed. This increased crude protein by 10% and reduced crude fibre by 15%. The network system proved more efficient, allowing easy adjustments by changing mesh only. Granulation presses and dispatch equipment improved handling and storage. The entire system—covering unbinding, separation, shaping, transport, and dispatch—was implemented under rural development programme support.