The value of synthetic lysine in rations for fattening swine.

Abstract

In a co-ordinated experiment at 4 centres there were 4 different diets based on cereals and soya bean oilmeal. One diet had 6% herringmeal, another had no extra protein supplement and the others had 0.125 and 0.250% lysine; total lysine in the last diet was the same as in the first. At 2 centres the added lysine gave growth and efficiency as good as on the diet with fishmeal. At the other centres the improvement was not as great. At all centres the performance from 50 to 100 kg liveweight was as good with lysine as with fishmeal. It is suggested that requirements for amino acids are more delicately balanced in young pigs.--H. S. Bayley. (Abstract retrieved from CAB Abstracts by CABI’s permission)