IFAM Yorkshire Pig Datasets: Genotypes and Production Traits for 16,783 Pigs

16,783 Yorkshire pigs were recruited from a commercial breeding farm for genomic analysis. Tail tissue samples were genotyped using an 80K array, resulting in 15,457,739 SNPs after quality control, and five key production traits were collected. The dataset was created by Xiaolei Liu and last updated on April 22, 2026.

Use Cases

• Genome-wide association studies (GWAS) based on the 15.4 million SNPs and production traits like backfat thickness and eye muscle area.
• Predictive modeling for production traits such as age adjusted to 100 kg (D100) based on high-density SNP genotypes.
• Functional annotation analysis of genetic variants using the provided list of SNPs from the IFmut database.
• Comparative genomic studies with other pig breeds, leveraging the standardized genotyping and phenotyping protocols.

Strengths

• Large sample size of 16,783 pigs, with phenotypic records for up to 16,732 individuals for some traits.
• High-density genotyping with 15,457,739 SNPs retained after rigorous quality control and imputation.
• Phenotypes are pre-adjusted for sex, line, and year-season, which likely reduces confounding effects.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic and husbandry bias inherent to the single commercial farm source.
• Row count for the primary data tables is unknown, which may limit suitability assessment.

Provenance

Source

Yingzi Gene Technology Co., Ltd. (Wuhan, China) performed the genomic analysis.

Collection Method

Tail tissue samples were collected from pigs on a commercial farm, with DNA extracted and genotyped using a pig 80K functional variants array. Phenotypes were collected at the end of the finishing period.

Freshness

Last updated 2026-04-22 13:23:00; freshness should be verified.

Geography

Samples were collected from a commercial breeding farm; the specific location is not stated, but genomic analysis was performed in Wuhan, China.