Urea-Clay Complex for Controlled Nitrogen Release in Ruminants
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Solution Overview
Problem
Current dietary supplements for ruminants using urea do not effectively manage ammonia production in the rumen, leading to suboptimal fermentation and zootechnical performance, as they rely on simple mixtures of urea and minerals without adsorption mechanisms to control ammonia levels.
Innovation Solution
An organic-inorganic complex is formed by adsorbing urea onto a combination of fibrous and nonfibrous clays, which slows the release of urea, reducing ammonia production and improving ruminal fermentation, comprising attapulgite and montmorillonite, optionally with zeolite, to enhance zootechnical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If urea is administered as a simple mixture with minerals, then nitrogen supplementation is provided, but ammonia production becomes excessive in the rumen
Solution Approach 1:
The patent uses clay minerals (attapulgite, bentonite, montmorillonite) as intermediary substances that adsorb urea molecules on their surfaces and in their interlayer spaces. This intermediary adsorption mechanism controls the release of urea, preventing direct conversion to excessive ammonia while still providing gradual nitrogen supplementation to the rumen bacteria.
Solution Approach 2:
The patent exploits the porous structure of clay minerals, particularly the interlayer spaces of montmorillonite and the channel structure of attapulgite, to physically trap and gradually release urea molecules. The porous architecture provides a controlled release mechanism that prevents sudden ammonia spikes while maintaining steady nitrogen availability.
2Use of energy by moving object
If urea release is rapid, then nitrogen availability is immediate, but fermentation kinetics become unbalanced and zootechnical performance decreases
Solution Approach 1:
The patent performs preliminary action by pre-adsorbing urea onto clay mineral surfaces before administration to the animal. This pre-treatment creates a reservoir of controlled-release nitrogen, ensuring that urea is gradually released in sync with rumen fermentation needs rather than causing sudden imbalances in fermentation kinetics.
Solution Approach 2:
The patent transforms the static urea-mineral mixture into a dynamic controlled-release system. The clay minerals act as dynamic reservoirs that continuously release urea in response to rumen conditions, adapting nitrogen availability to the ongoing fermentation process and maintaining balanced microbial activity throughout the digestion cycle.
3Object-generated harmful factors
If higher doses of urea and aluminosilicates are used, then ammonia absorption increases, but the complexity of the supplement formulation increases
Solution Approach 1:
The patent makes the clay minerals multi-functional by selecting materials that simultaneously perform multiple roles: attapulgite and bentonite provide both ammonia adsorption capacity and urea adsorption properties, while montmorillonite contributes interlayer adsorption for controlled release. This multi-functionality eliminates the need for separate ammonia-absorbing and urea-releasing components, simplifying the overall formulation.
Solution Approach 2:
The patent merges the functions of ammonia absorption and controlled urea release into a single integrated clay mineral matrix. By combining these functions in one adsorptive system rather than using separate components, the formulation achieves effective ammonia management and sustained nitrogen release without increasing formulation complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The complex improves daily weight gain and milk production while maintaining milk quality and reducing mycotoxin impact, achieving equivalent performance to prior art at lower doses of urea and aluminosilicates, with a gradual release of nitrogen that sustains fermentation kinetics.
Implementation Method 1
urea is adsorbed on the clays
Data Source
AI summary
The present invention relates to a mineral dietary supplement for ruminants comprising an organic-inorganic complex based on urea, and various clays for improving the animal's performance by the effect of delaying the release of urea in the rumen. The clays comprise at least one fibrous clay and a nonfibrous clay, preferably attapulgite and montmorillonite.