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Vitamins and Trace Minerals in Ruminants: Confinement Feedlot
John J Wagner1, Lily N Edwards-Callaway1, Terry E Engle1
1Department of Animal Science, Colorado State University, 350 West Pitkin Street, Fort Collins, CO 80523, USA.
Summary
Trace minerals and vitamins are crucial for feedlot cattle performance. This review examines how supplementation doses impact cattle growth, health, and carcass quality, challenging current industry oversupplementation.
Area of Science:
- Animal Science
- Nutritional Biochemistry
Background:
- Trace minerals and vitamins are vital for feedlot cattle growth, health, and carcass traits.
- Optimizing absorption and metabolism is key for effective diet formulation.
- Current industry practices often involve supplementation levels 2-4 times higher than recommended requirements.
Purpose of the Study:
- To review the functions of commonly supplemented trace minerals and vitamins in feedlot cattle diets.
- To analyze the effects of varying trace mineral and vitamin doses on cattle performance.
- To evaluate the impact of supplementation levels on growth, health, and carcass characteristics.
Main Methods:
- Literature review of scientific studies on trace mineral and vitamin supplementation in feedlot cattle.
- Analysis of data concerning growth performance, health outcomes, and carcass quality metrics.
- Examination of dose-response relationships for key nutrients.
Main Results:
- Specific trace minerals and vitamins play distinct roles in cattle metabolism and productivity.
- Higher supplementation doses beyond requirements may not consistently improve performance and could potentially impact health or carcass traits.
- Understanding optimal inclusion rates is critical for economic and animal well-being.
Conclusions:
- Current oversupplementation practices in the feedlot industry warrant re-evaluation.
- Further research into dose-specific effects can refine feeding strategies for improved efficiency and outcomes.
- Tailoring trace mineral and vitamin supplementation based on scientific evidence is essential for optimizing feedlot cattle production.
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