Relative bioavailability of supplemental inorganic zinc sources for chicks

Journal of Animal Science
M SandovalR C Littell

Abstract

Three experiments were conducted to investigate the relative bioavailability of reagent-grade (RG) and feed grade (FG) Zn sources for 1-d-old broiler chicks. In Exp. 1, 13 treatments included a basal corn-soybean meal diet (63 ppm Zn) or the basal diet supplemented with 400, 800, or 1,200 ppm Zn from RG sulfate, basic carbonate, oxide, or metal and fed for 20 d. Using multiple regression slope ratios with Zn sulfate set at 100%, bioavailability estimates were 78, 77, and 46% for carbonate, oxide, and metal, respectively. In Exp. 2, chicks were allotted randomly to 16 treatments that included a basal corn-soybean meal diet (75 ppm Zn) or basal diet supplemented with 300, 600, or 900 ppm Zn as either RG sulfate, FG sulfate-A, FG sulfate-B, FG oxide-A, or FG oxide-B and fed for 21 d. Multiple linear regression slope ratios gave relative estimates of 99, 81, 78, and 54% for sulfate-A, sulfate-B, oxide-A, and oxide-B sources, respectively, with RG sulfate set at 100%. In Exp. 3, chicks were fed a basal corn-soybean meal diet (35 ppm Zn) or the basal diet supplemented with 40, 80, or 120 ppm Zn from RG Zn sulfate, FG sulfate, or FG oxide and fed for 20 d. Multiple regression slope ratios with RG sulfate set at 100% gave relative bioa...Continue Reading

Citations

Nov 11, 2003·The Journal of Pharmacy and Pharmacology·Do You SoungHae Young Chung
Jun 15, 2012·Animal Science Journal = Nihon Chikusan Gakkaihō·Xiaojun YangYajing Sun
Feb 7, 2014·Critical Reviews in Food Science and Nutrition·Nauman KhalidRabab Rafaqat
Dec 13, 2019·Biological Trace Element Research·Amlan Patra, Melody Lalhriatpuii
Oct 11, 2017·Journal of Animal Physiology and Animal Nutrition·N JoseC G David

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