Effect of Partial or Complete Replacement of Dietary Inorganic Trace Minerals Supplement with an Advanced Chelated Source on Nutrient Digestibility in Sheep

Abstract

Improving trace mineral supplementation in ruminants is crucial for optimal health and performance, although traditional inorganic sources may have some drawbacks, particularly regarding rumen function. We investigated an advanced chelate technology-based trace mineral (ACTM) supplement containing 7 trace minerals (Bonza®plex 7). In the in vitro assay, ACTM presented low solubility at rumen pH but high solubility at abomasal pH, suggesting an increase in the rumen bypass and minimal negative effects on ruminal fermentation. In situ experiments showed that ACTM enhanced early fiber degradability in the rumen. When fed to lambs, ACTM improved nutrient digestibility and mineral absorption compared to inorganic sources. However, partial replacement of inorganic minerals with ACTM showed unconclusive results. These findings suggest that ACTM supplementation can enhance rumen function and mineral utilization in ruminants, potentially leading to improved animal performance. Further research is warranted to determine optimal inclusion rates and elucidate the effects of ACTM supplementation on rumen fermentation parameters, microbial population dynamics, and long-term animal performance across various ruminant production systems.