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Ruminal Solubility and Bioavailability of Inorganic Trace Mineral Sources and Effects on Fermentation Activity Measured in Vitro

Author

Listed:
  • Antal Vigh

    (Faculty of Animal Sciences and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
    ADM Animal Nutrition, Talhouët, 56250 Saint-Nolff, France)

  • Adriana Criste

    (Faculty of Animal Sciences and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania)

  • Kévin Gragnic

    (ADM Animal Nutrition, Talhouët, 56250 Saint-Nolff, France)

  • Léa Moquet

    (ADM Animal Nutrition, Talhouët, 56250 Saint-Nolff, France)

  • Christine Gerard

    (ADM Animal Nutrition, Talhouët, 56250 Saint-Nolff, France)

Abstract

The aim of this study was to assess the effects of supplementation with inorganic sources of manganese (MnO, MnSO 4 ), zinc (ZnO, ZnSO 4 ) and copper (CuSO 4 ) at different levels (0.06%DM for Mn, 0.05%DM for Zn; 0.01 and 0.05%DM for Cu) on in vitro rumen fermentation, solubility and bioavailability. Fermentation activity was measured by total gas production (TGP) and dry matter degradability after 70 h of fermentation (dDM%). Trace mineral (TM) solubility was estimated via the TM concentration in the supernatant of the final fermentation medium (SOL) and TM bioavailability from the TM concentration in a bacterial-enriched fraction (BACT). Mn (regardless of source) and ZnO tended ( p < 0.10) to decrease, while Cu showed no significant effect on TGP. The addition of inorganic Mn and of ZnO tended ( p < 0.10) to decrease, ZnSO 4 tended to increase ( p < 0.10), whilst Cu showed no effect on dDM%. Concerning solubility, Mn (MnO and MnSO 4 ), ZnSO 4 and CuSO 4 significantly ( p < 0.05, p < 0.001 and p < 0.01) increased, while ZnO did not affect TM content in the SOL. These results indicate that MnSO 4 , ZnSO 4 and CuSO 4 are highly soluble, MnO is quite soluble, while ZnO has a low solubility in the rumen. Based on the TM content in BACT, MnO, MnS 4 and CuSO 4 have high bioavailability, while ZnO is poorly assimilated by rumen bacteria. However, the lack of clear inhibition or improvement in fermentations suggests that the rumen microbiota have a low requirement for TM supplementation.

Suggested Citation

  • Antal Vigh & Adriana Criste & Kévin Gragnic & Léa Moquet & Christine Gerard, 2023. "Ruminal Solubility and Bioavailability of Inorganic Trace Mineral Sources and Effects on Fermentation Activity Measured in Vitro," Agriculture, MDPI, vol. 13(4), pages 1-18, April.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:4:p:879-:d:1124824
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    Cited by:

    1. Antal Vigh & Adriana Dalila Criste & Nicolae Corcionivoschi & Christine Gerard, 2023. "Rumen Solubility of Copper, Manganese and Zinc and the Potential Link between the Source and Rumen Function: A Systematic Review," Agriculture, MDPI, vol. 13(12), pages 1-16, November.

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