Genetic Differences among White Leghorn Chicks in Requirements of Arginine

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Science  31 Aug 1962:
Vol. 137, Issue 3531, pp. 691-692
DOI: 10.1126/science.137.3531.691


Among three strains of the one breed, and among sire families within each strain, there were highly significant differences in ability of chicks to tolerate a deficiency of arginine at ages up to 4 weeks. One of these strains required about 25 percent more arginine than another for maximum growth to that age.