A SNP molecular marker related to feed conversion efficiency trait of ningxiang pigs and application thereof

By using genome-wide association analysis and designing specific primers, we located SNP molecular markers related to feed conversion efficiency in Ningxiang pigs, solving the problem of slow genetic progress in traditional breeding methods and enabling precise screening and efficient breeding of Ningxiang pigs.

CN120924684BActive Publication Date: 2026-07-03INSTITUTE OF SUBTROPICAL AGRICULTURE CHINESE ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INSTITUTE OF SUBTROPICAL AGRICULTURE CHINESE ACADEMY OF SCIENCES
Filing Date
2025-09-10
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The lack of SNP molecular markers related to feed conversion efficiency in Ningxiang pigs in existing technologies leads to long research cycles and slow genetic progress in traditional breeding methods, making it difficult to meet the needs of the modern pig industry.

Method used

Through genome-wide association analysis, SNP molecular markers SNP1 and SNP2, which are associated with feed conversion efficiency in Ningxiang pigs, were located. Highly specific sequencing and KASP primer pairs were designed for high-throughput detection and genotyping, enabling precise screening and breeding.

Benefits of technology

It enables accurate prediction and efficient screening of feed conversion efficiency for pigs in Ningxiang, improves breeding efficiency, identifies pig breeds with high feed conversion efficiency, and optimizes the breeding process.

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Abstract

The present application relates to the field of biotechnology, and particularly relates to a SNP molecular marker related to feed conversion efficiency of Ningxiang pigs and application thereof. The molecular marker comprises SNP1 and SNP2. The SNP1 molecular marker corresponds to the 97685244th site from the 5' end of chromosome 1 of the reference genome Sus Scrofa Build11.1, and is A or G. The SNP2 molecular marker corresponds to the 97782417th site from the 5' end of chromosome 1 of the reference genome Sus Scrofa Build11.1, and is A or C. The present application obtains a molecular marker significantly related to the feed conversion efficiency of Ningxiang pigs. The present application can provide guidance for the breeding of Ningxiang pigs by using the molecular marker, and can accurately and efficiently predict the feed conversion efficiency and typing, identify and screen pigs with high feed conversion efficiency and excellent meat quality, and improve the breeding efficiency.
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