Abstract
METHIONINE and lysine appear to be the most limiting amino acids in corn-soybean oil meal-type diets for turkey poults (Baldini et al., 1954; Waibel, 1959). The requirements of the starting turkey poult for methionine and lysine are 0.87 and 1.50%, respectively, of a diet containing 28% protein, according to the National Research Council (NRC) (1954). A portion, 0.35%, of the methionine need can be met by cystine.Only limited data are available concerning the supplementation of low protein turkey poult diets with methionine and lysine. A 20% protein corn-soybean oil meal diet gave maximum growth and feed efficiency with Jersey Buff poults when supplemented with methionine and lysine (Baldini et al., 1954). In a study by Fisher et al. (1956), the growth obtained when Buff poults were fed diets containing 20% protein with added methionine and lysine was 12.5% better than obtained with a 28% protein diet, although growth with …
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