Biological Trace Element Research

, Volume 146, Issue 2, pp 181–186 | Cite as

Relative Bioavailability of Manganese Proteinate for Broilers Fed a Conventional Corn–Soybean Meal Diet



An experiment was conducted to investigate the bioavailability of organic manganese proteinate (Mn) relative to inorganic Mn sulfate for broilers fed a conventional corn–soybean meal basal diet. A total of 448-day-old Arbor Acres commercial male chicks were fed the Mn-unsupplemented basal diet (control) or basal diet supplemented with 60, 120, or 180 mg Mn/kg from each Mn source. At 21 days of age, heart tissue was excised for testing DM, Mn concentration, manganese superoxide dismutase (MnSOD) activity, and MnSOD mRNA level. The Mn concentration, MnSOD activity, and MnSOD mRNA level in heart tissue increased (P < 0.01) linearly as dietary manganese concentration increased. Based on slope ratios from multiple linear regressions of the above three indices on added Mn level, there was no significant difference (P > 0.21) in bioavailability between Mn proteinate and Mn sulfate for broilers in this experiment.


Mn proteinate Bioavailability Broiler 



This work was supported by Alltech Inc. (3031 Catnip Hill Pike, Nicholasville, KY 40356, USA), China Agriculture Research System (project no. CARS-42; Beijing, People's Republic of China), and the Hebei Natural Science Foundation (project no. C2008000474; Shijiazhuang, People's Republic of China).


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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.College of Animal Science and TechnologyNorthwest A and F UniversityYanglingPeople’s Republic of China
  2. 2.Mineral Nutrition Research Division, State Key Laboratory of Animal Nutrition, Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijingPeople’s Republic of China
  3. 3.Department of Animal ScienceHebei Normal University of Science and TechnologyQinhuangdaoPeople’s Republic of China

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