Abstract
It has been shown that methionine hydroxy analogue will satisfy the methionine requirement of the chick (Bird, 1952; Gordon and Maddy, 1953). As part of an extensive program for testing the utility of methionine hydroxy analogue, experiments were carried out under conditions in which a high degree of control was maintained over temperature, light and other environmental factors. Data are presented to show that the type of experimental design employed demonstrates that the addition of low levels of methionine hydroxy analogue to practical broiler rations will give statistically significant improvements in feed efficiency. Experimetal work involving larger numbers of birds on floor trials or under field conditions will be reported subsequently.The basal diet used in this study was composed of soybean oil meal (44% protein) 35%, ground yellow corn 57.55%, alfalfa leaf meal 3.0%, dicalcium phosphate 1.975%, calcium carbonate 1.5%, iodized salt 0.5%, MnSO4 (70%) 0.025%. The following ingredients …
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