Abstract
PRIOR to the use of automatic feeders, many reports had been published on different feeding systems for layers. Several workers (Morgan and Heywang, 1941; Morris, 1946; and Jensen and McGinnis, 1952) have shown that no significant increase in egg production was obtained when a pelleted all-mash laying ration was compared with an unpelleted all-mash laying ration. Previous work by Lee, Hamilton, Henry and Callanan (1939) showed that egg production was lower and feed cost per dozen eggs was higher when an all-mash ration supplemented with pellets was compared with a grain, mash and pellet feeding program. Following this work, Lee, Scholes and Henry (1944 Lee, Scholes and Henry (1949), using Leghorn, Rhode Island Red and Rhode Island Red × Barred Plymouth Rock crossbred layers, found that a controlled feeding program of grain, mash and pellets gave better egg production than free choice feeding of grain and mash. Since the advent of the automatic feeders …
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