Release 59
(Apr 20, 2026)

Cattle QTLdb data summary
As of Apr 20, 2026, there have been 212,372 QTL / eQTL / associations released for public access on the Cattle QTLdb. These data were curated from 1,231 publications and represent 572 base traits, 471 trait variants, and 346 eQTL genes.
Data summary selector:
  1. Data by Traits
  2. Experiments by Traits
  3. Data by Trait Variants
  4. Experiments by Trait Variants
  5. Data by Trait Types
  6. Data by Trait Classes
  7. Genome assemblies supported
  8. Data by Chromosomes
  9. Data by Marker Types
  10. Data by Publishing Journals
  11. Data by Years Published
  12. Data Sources by Years Published
  13. Data in Curation Pipeline
  14. Types of structural genome information aligned against the QTL/association maps

Trait variants with the most curated data

Trait variants
Number of QTL
Birth weight208,680
305-day milk yield136,595
Weaning weight121,730
Yearling weight86,950
Daily milk yield80,350
Body weight at 6 months52,170
Body weight at 24 months52,170
305-day milk yield, lactation 240,175
Body weight at 18 months38,258
Body weight at 12 months38,258
Milk fat percentage in second lactation35,727
Milk fat percentage (lactation 2)35,727
Slaughter weight34,780
305-day milk yield, lactation 132,140
Milk protein percentage in first lactation29,394
Milk protein percentage in second lactation29,394
Milk protein percentage (lactation 2)29,394
Milk fat yield (lactation 1)28,554
Milk fat yield in second lactation28,554
. . . . . .
NOTE: On this site, the term "QTL" may have collectively included quantitative loci, SNP associations, and eQTL data.

 

© 2003-2026: USA · USDA · NRPSP8 · Program to Accelerate Animal Genomics Applications. Contact: Bioinformatics Team