FEEDING OF WHITE LUPINS (LUPINUS-ALBUS L) TO PIGLETS

In a 2factorial trial, lasting 6 weeks, 6 x 8 piglets (initial weight 8.2 kg) were used to examine the feeding of white lupins (Lupinus albu s L., var. Lublanc). 0 %, 10 % and 20 % lupins were fed. For the secon d factor soybean meal was replaced and the rations were supplemented w ith the essential amino acids or soybean meal and fishmeal were replac ed. All diets were formulated to be isonitrogeneous (21 % XP in dry ma tter (DM)) and isoenergetic (14.2 MJ ME per kg DM). By feeding of 10 % and 20 % lupins daily weight gains were significantly reduced by 13 % and 28 %, respectively, over the whole rearing period compared to the control groups. This was a consequence of the reduced feed intake of 12 % or 25 %, respectively. Feed efficiency was reduced significantly when 20 % lupins were given. Similar results were determined in the di fferent rearing periods. This means that the feeding of white lupins t o piglets will result in reduced performance. Possible factors are dis cussed.