Multi-Strain Probiotic Composition for Calf Pathogen Inhibition
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Solution Overview
Problem
The high cost of rearing and replacing cattle due to the prevalence of diarrheal disease (scours) in pre-weaned calves, which is primarily caused by bacterial, viral, and protozoal infections, and the limitations of current prophylactic measures such as antibiotics and vaccines, including the development of antibiotic resistance and incomplete immune response.
Innovation Solution
A composition of multiple strains of probiotic bacteria, including Lactobacillus animalis, Enterococcus faecium, and Pediococcus acidilactici, administered as a direct-fed microbial feed additive to inhibit pathogenic bacteria by competitive exclusion, production of antibacterial agents, and colonization of the gastrointestinal tract, thereby reducing pathogen loads and improving animal health.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antibiotics are used to treat bacterial infections in calves, then pathogen populations are reduced, but antibiotic resistance develops
Solution Approach 1:
The patent uses probiotic bacteria as an intermediary substance to compete with pathogenic bacteria for resources and attachment sites in the calf's gastrointestinal tract. This indirect competition reduces pathogen populations without directly killing them with antibiotics, thereby avoiding the selection pressure that leads to antibiotic resistance while still achieving effective pathogen control
2Reliability
If vaccines are administered to prevent infections, then immune response is stimulated, but immune response remains incomplete
Solution Approach 1:
The patent introduces probiotic bacteria into the calf's gastrointestinal tract before pathogenic infections occur. These probiotics establish themselves first, occupying attachment sites and consuming resources that would otherwise be available to pathogens. This preliminary colonization creates a protective barrier that prevents or reduces the severity of subsequent infections, providing proactive rather than reactive immunity
3Reliability
If probiotic bacteria are administered to inhibit pathogens, then pathogen populations are reduced, but sustained inhibition is required
Solution Approach 1:
The patent employs multiple strains of probiotic bacteria that work synergistically to provide continuous pathogen inhibition. The diverse strains perform different functions - some produce antimicrobial substances, others compete for attachment sites, and some modify the gut environment - creating a multi-layered, sustained protective effect that maintains pathogen suppression over extended periods through continuous beneficial activity in the gastrointestinal tract
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 multi-strain probiotic composition effectively reduces pathogen populations, improves animal health, and increases feed efficiency by providing sustained inhibition of pathogenic bacteria, reducing the incidence and severity of scours, and minimizing antibiotic resistance.
Implementation Method 1
inhibit pathogenic bacteria by competitive exclusion, production of antibacterial agents, and colonization of the gastrointestinal tract
Implementation Method 2
inhibit pathogenic bacteria by competitive exclusion, production of antibacterial agents, and colonization of the gastrointestinal tract
Data Source
AI summary
A juvenile animal feed additive, such as for calves, that promotes animal health and growth, reduces mortality and can act as an antibiotic substitute. The additive inhibits pathogen growth resulting in lower pathogen load within the animal and reduced pathogen sheading to the environment. The additive includes bacteria that inhibit E. coli O157:H7 growth by as much as 93% and Salmonella growth by as much as 97%, together with commensurate inhibition rates against the Big-Six Escherichia coli strains. The additive includes various combinations of the following pathogen-inhibiting bacteria: Lactobacillus animalis; Enterococcus faecium; and Pediococcus acidilactici.