Rumen Methane Reduction Through Melatonin-Mediated Fermentation
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Solution Overview
Problem
Ruminant animals produce significant amounts of methane through rumen fermentation, contributing to greenhouse gas emissions, and existing methods to reduce this are either complex or involve harmful residues.
Innovation Solution
Administering melatonin at specific concentrations (10−7 mol/L to 10−3 mol/L) to gastric juice or feeding animals 8.0 to 35.0 mg/kg/day to alter rumen microorganism compositions and reduce methane production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If existing methods are used to reduce methane production, then methane emissions are reduced, but the methods are either complex or involve harmful residues
Solution Approach 1:
The patent extracts and isolates melatonin as a specific active compound to be administered to animals. By focusing on a single, well-defined substance rather than complex mixtures or multiple intervention strategies, the solution simplifies the approach to reducing methane emissions while maintaining effectiveness.
Solution Approach 2:
Melatonin naturally occurs in the rumen of ruminant animals and plays a physiological role in the ecosystem. By supplementing with melatonin, the solution utilizes the animal's own natural biochemical pathways and existing microbial communities, rather than introducing foreign complex systems or substances that require additional management.
2Object-generated harmful factors
If existing methods are used to reduce methane production, then methane emissions are reduced, but harmful residues are involved
Solution Approach 1:
The patent converts the naturally occurring but methane-producing rumen ecosystem into a beneficial system by adding melatonin. The existing microbial community is leveraged and redirected through melatonin's physiological effects to reduce methane production, transforming the harmful function into a beneficial one without introducing harmful substances.
Solution Approach 2:
The patent changes the chemical composition parameter of the rumen environment by introducing melatonin at specific concentrations (10^-7 to 10^-3 mol/L). This parameter change triggers physiological responses in the rumen microorganisms that alter methane production pathways, achieving emission reduction through controlled chemical parameter modification rather than harmful residues.
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
Melatonin effectively reduces methane production by altering volatile fatty acid contents and decreasing methanogenic bacteria abundance, offering a simple, residue-free, and environmentally beneficial solution.
Implementation Method 1
The rumen is similar to an anaerobic fermenter which comprises a large number of microorganisms such as bacteria, fungi, protozoa and methanogens. Such microorganisms can cooperate and degrade the fodder into CH4, CO2, NH3 and volatile fatty acids through interactions.
Implementation Method 2
The rumen is similar to an anaerobic fermenter which comprises a large number of microorganisms such as bacteria, fungi, protozoa and methanogens. Such microorganisms can cooperate and degrade the fodder into CH4, CO2, NH3 and volatile fatty acids through interactions.
Data Source
AI summary
Provided is a method for reducing methane production in animal stomachs by adding melatonin to gastric juice of the animal or feeding the animal with melatonin. In the method of the present disclosure, 10-7 mol/L to 10-3 mol/L of melatonin can reduce the methane production from the in vitro gastric fermentation fluid, and feeding melatonin of 8.0 to 35.0 mg/kg/day can reduce the methane production from the animal respiration from day 7 of feeding melatonin. The method of the present disclosure can reduce greenhouse gas emissions of animals, control environmental pollution and realize low-carbon farming.