Energy: Methioine ratio and formulating feed for commercial layers

The results from two experiments conducted with Hy-Line W-36 commercial lay ing hens indicated that the energy:methionine (Met) ratio in the feed is im portant. The energy intake of the hens in these experiments increased as th e rate of lay and egg weight increased. The hens increased feed intake to m eet their increased energy requirement. This situation resulted in a greate r intake of Met. The ideal energy:Met ratio would be influenced by other fa ctors such as temperature, which affects feed intake. Feed formulated with the ideal energy:Met ratio would result in the lowest feed cost.