[Studies on the effect of raw protein supply on the lysine requirements in young pigs of living weight of 12-40 kg. 2. Report. Feeding studies with wheat-soy bean extraction residues].

A feeding trial was conducted on a total of 96 pigs to investigate the effect of lysine supplements added to rations of wheat+extracted soya bean meal and rations of wheat+extracted gound nut meal. Significant differences in the daily weight gains were noted (up to the 4th week of experiment) between the groups fed the soya bean meal ration and those fed the ground nut meal ration and between the soya bean meal groups receiving rations supplemented with 0,71% lysine or 0.79% lysine. At the termination of the trial (8th week) these differences were no longer significant statistically although the soya bean meal group fed rations supplemented with 0.79% lysine yielded clearly the best results.