Reports

Zinc Requirement for Growing Swine

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Science  21 Nov 1958:
Vol. 128, Issue 3334, pp. 1280-1281
DOI: 10.1126/science.128.3334.1280

Abstract

Swine fed rations containing 16, 21, 26, 31, 36, 41, or 46 parts per million of zinc gained 0.06, 0.13, 0.25, 0.52, 0.61, 0.69, and 0.76 lb, respectively, per day. Feed required per unit of gain decreased with each increment of zinc. Parakeratosis occurred in pigs fed 16, 21, 26, 31, or 36 ppm of zinc.