The influence of amino acids and energy in mid- to late-lay

The AMEn and SID lysine requirements for modern layer genotypes for maintenance and egg production have not changed over their heritage predecessors.

PETER CHRYSTAL, MARIANA CIACCIARIELLO and RICK KLEYN* investigate into whether the amino acid and energy requirements of laying hens in mid to late-lay has changed with genotype improvements.

In commercial layers, feed makes up to 70% of the costs associated with egg production. Of this frac...

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Based and working in the region.