Shrimp Immunity via TH dsRNA Injection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-density shrimp farming in Taiwan leads to increased mortality due to cross-infection and the abusive use of antibiotics, which causes allergic reactions and drug resistance, necessitating an alternative method to enhance shrimp immunity.
Innovation Solution
Administering double-stranded RNA specific to tyrosine hydroxylase (TH dsRNA) to shrimp bodies, either by injection into the ventral sinus, to inhibit tyrosine hydroxylase activity, thereby improving immune responses and reducing mortality from pathogens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-density farming is adopted to reduce costs, then productivity increases, but mortality increases due to cross-infection
Solution Approach 1:
The patent applies preliminary action by administering dsRNA to shrimps before pathogen infection occurs. The dsRNA is injected into the ventral sinus of the cephalothorax in advance, allowing the shrimp's immune system to be primed and activated before exposure to pathogens, thereby preventing infection rather than treating it after occurrence
Solution Approach 2:
The patent utilizes the shrimp's own immune system through RNA interference mechanism. The administered dsRNA triggers the shrimp's endogenous immune response by interfering with tyrosine hydroxylase gene expression, making the shrimp self-protective against pathogens without requiring external antibiotics or chemical interventions
2Reliability
If antibiotics are used to reduce mortality, then survival rate improves, but drug resistance and allergic reactions occur
Solution Approach 1:
The patent replaces the chemical/medical intervention system (antibiotics) with a biological molecular mechanism system (RNA interference). Instead of using external chemical substances that cause resistance and allergies, the invention uses dsRNA to trigger the shrimp's natural immune response through gene silencing, substituting pharmacological treatment with a molecular biological approach
Solution Approach 2:
The dsRNA acts as an intermediary substance that mediates between the external environment and the shrimp's immune system. Rather than directly exposing shrimps to pathogens or antibiotics, the dsRNA serves as a molecular messenger that activates immune defenses through the RNAi pathway, providing indirect protection while avoiding direct harmful effects of antibiotics
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 TH dsRNA effectively increases immune parameters such as total haemocyte count, phenoloxidase activity, and phagocytic activity, while decreasing mortality from bacterial infections, thus reducing the need for antibiotics in shrimp farming.
Implementation Method 1
administering double-stranded RNA specific to tyrosine hydroxylase (TH dsRNA) to shrimp bodies, either by injection into the ventral sinus, to inhibit tyrosine hydroxylase activity
Data Source
AI summary
The invention discloses a method for improving immunity in shrimps, by administering a double-stranded RNA specific to tyrosine hydroxylase to a shrimp body to improve immunity of the shrimp body, wherein the double-stranded RNA is administered to the shrimp body by injection into the ventral sinus of the cephalothorax of the shrimp body.