Additives in Supplements for Grazing Beef Cattle
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View abstract on PubMed
Summary
This summary is machine-generated.Supplementing pasture-raised beef cattle with protein-energy supplements (PESs) increased dry matter intake and improved nitrogen utilization. However, additives like monensin sodium, functional oil, or active yeast did not further enhance nutritional parameters in this study.
Area Of Science
- Animal Science
- Ruminant Nutrition
- Pasture Management
Background
- Pasture-based beef systems rely on forage and supplements for optimal production.
- Supplementation and additives can enhance nutrient utilization and production efficiency in cattle.
Purpose Of The Study
- To assess the impact of additives in protein-energy supplements (PESs) on intake, digestibility, and ruminal parameters of pasture-raised beef cattle.
- To compare the effects of monensin sodium, functional oil, and active yeast within PESs.
Main Methods
- A 5x5 Latin square design with five male cattle grazing marandu palisadegrass.
- Treatments included a mineral mixture (MM), PES, and PES with monensin sodium, functional oil, or active yeast.
Main Results
- PES significantly increased total dry matter intake (DMI), DMI as % body weight (%BW), crude protein intake, and digestible organic matter intake.
- Additives did not alter nutrient intake or digestibility.
- PES increased ruminal ammonia nitrogen, serum urea nitrogen, fecal nitrogen, retained nitrogen, microbial nitrogen synthesis, and microbial efficiency compared to MM.
Conclusions
- Protein-energy supplements enhance DMI and nitrogen metabolism in pasture-raised beef cattle.
- Monensin sodium, functional oil, and active yeast, under the study's conditions, did not provide additional nutritional benefits beyond the PES itself.
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