EFFECT OF PROTEIN LEVEL AND LYSINE AND METHIONINE SUPPLEMENTATION ON THE PERFORMANCE OF GROWING PIGS: RESPONSE OF DIFFERENT SEXES AND STRAINS OF PIGS
- 1 June 1968
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Animal Science
- Vol. 48 (2), 181-188
- https://doi.org/10.4141/cjas68-024
Abstract
Two factorial experiments have been conducted with corn–soybean diets. Four types of pigs and three "sexes": males, females and castrated males, were used. The first experiment showed that Lacombe and Yorkshire strains responded to an increase in dietary protein from 13 to 16% by growing faster, whereas Landrace and a crossbred strain did not. The males grew faster than the females. In the second experiment, the effects of adding lysine and/or methionine to diets containing either 12 or 14% protein were investigated. There was no significant improvement in gain or feed efficiency when either amino acid was added separately, but there was a substantial response when they were added together. Landrace, Yorkshire and Hampshire × Landrace pigs were used in this experiment and the Landrace gained more slowly than the other two types.This publication has 1 reference indexed in Scilit: