Effect of dietary lysine during youth on laying performance of hens on a balanced feed or one somewhat low in lysine

Larbier, M.; Guillaume, J.

Conference on poultry and rabbit research, December 1973: 199-203


Accession: 000069559

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Pullets were given from day-old to 17 weeks of age a growers' diet based on maize, oats and groundnut meal without or with 0.29% lysine. Half of each group was then given for 7 months a layers' diet without and the others one with 0.3% lysine. The age at which 25% lay was achieved was significantly earlier with birds given the lysine during the growing period. Differences when lysine was added to the layers' diet were not significant. Egg production and egg weight were significantly greater in groups given lysine in layers' diet, irrespective of their earlier diet. Egg production of birds given the layers' diet without lysine did not differ significantly. Egg weight was significantly less in groups given diets without lysine throughout than in groups given lysine during the growing period. Mortality was affected by early and late lysine deficit.