Batch Swine Management for Fixed-Time AI Farrowing Rate
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Solution Overview
Problem
Batch management systems in swine farming face challenges with reduced farrowing rate and litter size due to embryo overcrowding and absorption during pregnancy, which are not effectively addressed by existing methods like nutrition supplementation and assisted heat detection.
Innovation Solution
Administering 1-[bis(4-cyanophenyl)alkyl]-1,2,4-triazole to synchronize follicular development and regulate the expression of genes in the LPA signaling pathway, combined with exogenous gonadotropins and ovulation induction drugs, to improve embryo spacing and farrowing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If batch management systems with fixed-time artificial insemination are used to synchronize estrus and mating, then production efficiency and bio-safety are improved, but farrowing rate and number of piglets born alive decrease due to embryo overcrowding and absorption
Solution Approach 1:
The patent applies parameter changes by introducing a chemical substance that modifies physiological parameters during pregnancy. This substance regulates embryo spacing by affecting the LPA signaling pathway, changing the physical or chemical state of the uterine environment to prevent embryo overcrowding while maintaining the benefits of batch management systems.
2Productivity
If batch management systems with fixed-time artificial insemination are used to synchronize estrus and mating, then production efficiency and bio-safety are improved, but number of piglets born alive decreases due to embryo absorption during pregnancy
Solution Approach 1:
The patent uses parameter changes by administering a chemical substance that alters the physiological parameters of the uterus during pregnancy. This regulates the LPA signaling pathway to control embryo spacing and prevent absorption, thereby increasing the number of piglets born alive while maintaining synchronized batch management.
3Reliability
If nutrition supplementation and assisted heat detection are used to address farrowing rate issues, then some improvement is achieved, but the problems of embryo overcrowding and absorption are not effectively addressed
Solution Approach 1:
The patent introduces a chemical substance as an intermediary to address the core problem of embryo overcrowding. This substance acts as a mediator that regulates the LPA signaling pathway, providing a more effective solution than traditional nutrition supplementation or heat detection methods by directly influencing embryo spacing and prevention of absorption.
Data Source
AI summary
The disclosure relates to a batch management method for improving the farrowing rate or the number born alive in swine. It includes the following steps: synchronization of estrus in swine are used an exogenous gonadotropin(s) to synchronize follicular development, and then fed with 1-[bis(4-cyanophenyl)alkyl]-1,2,4-triazole after 6-12 hours. Next the gilts or sows are bred in batches after treated with ovulation-inducing drug(s). The disclosure can effectively alleviate decreased farrowing rate and number of piglets born alive in the batch gilts or sows used the fixed-time artificial insemination, without influencing the serum estrogen level, estrus and ovulation time in mated gilts or sows. Therefore, a novel method for improving the reproductive efficiency of gilts or sows will be established, which is valuable for popularizing batch farrowing in swine including with fixed-time artificial insemination.