Release 17
(Dec 28, 2022)
Animal Trait Correlation Database
Genetic and phenotypic trait correlation studies have been conducted for decades since Hazel proposed the methods in 1943 [1]. A genetic correlation is the proportion of shared variance between two traits that is due to genetic causes; a phenotypic correlation is the degree to which two traits co-vary among individuals in a population. In the genomics era, while gene expression, genetic association, and network analysis provide unprecedented means to decode the genetic basis of complex phenotypes, it is important to recognize the possible effects genetic progress in one trait can have on other traits. This database is designed to collect all published livestock genetic/phenotypic trait correlation data, aimed at facilitating genetic network analysis or systems biology studies.

As of the current Release, a total of 26,138 correlation data on 792 traits, and 4,300 heritability data on 874 traits, in 6 livestock animal species have been curated from 474 publications.

Cattle Chicken Goat Horse Pig Sheep
Release 17: curated data
Species Correlations Heritability
CountTraits CountTraits
Cattle 13,214350 2,168382
Chicken 1,83580 377106
Goat 31132 52
Horse 20927 12353
Pig 8,589231 1,379240
Sheep 1,98072 24891
Sum26,138792 4,300874
Last 30 days visitor activities
  • Web visits: 77,734 (hits)
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  • Correlation by unique trait pairs counted by species and correlation types
    Species Corr.Types CattleChickenGoatHorsePigSheepSUM
    Environment  244 

    Genetic  3,114 
    Phenotypic  3,388 
    Residual  328 
    Note: Bold numbers represent counts of correlation trait pairs;
    In parenthesis are counts of multiple correlations reported.
    Heritability data reported by species
    # ReportsCattle Traits
    64Milk yield
    56Milk fat yield
    55Milk protein yield
    49Somatic cell score
    41Average daily gain
    38Milk protein percentage
    37Body weight
    35Milk fat percentage
    33Marbling score
    33Carcass weight
    32Longissimus muscle area
    23Dry matter intake
    22Residual feed intake
    21Interval to first estrus after calving
    19Clinical mastitis
    18Fat thickness at the 12th rib
    17Calving to conception interval
    17Subcutaneous fat thickness
    17Calving interval
    16Metabolic body weight
    15Udder cleft
    14Sperm motility
    14Udder attachment
    14Hip height
    14Interval from first to last insemination
    14Udder depth
    13Milk lactose content
    12Shear force
    12Age at first calving
    12Milk lactose yield
    12Milk palmitic acid content
    12Milk myristic acid content
    12Milk oleic acid content
    12Udder height
    12Milk stearic acid content
    12Gestation length
    11Milk capric acid content
    11Milk lauric acid content
    11M. paratuberculosis susceptibility
    11Feet and leg conformation
    11Milk saturated fatty acid content
    11Dairy form
    11Semen volume
    11Milk caprylic acid content
    11Yield grade
    11Inseminations per conception
    11Non-return rate
    11Dressing percentage
    10Milk unsaturated fatty acid content
    10305-day milk yield
    10Teat placement - front
    10Kidney, pelvic, and heart fat percentage
    10Body depth
    10Body condition score
    # ReportsChicken Traits
    32Body weight
    29Egg weight
    27Egg number
    14Eggshell strength
    11Abdominal fat weight
    9Abdominal fat percentage
    9Eggshell thickness
    8Age at first egg
    7Albumen height
    7Eggshell shape
    7Feed conversion ratio
    7Feed intake
    6Residual feed intake
    6Liver weight
    6Average daily gain
    6Eggshell color
    5Breast muscle weight
    5Breast muscle percentage
    4Shank length
    4Gizzard weight
    4Blood bile acid level
    4Comb height
    4Triglyceride level
    4Haugh units
    4Blood albumin to globulin ratio
    4Blood globulin level
    4Blood uric acid level
    4Eggshell stiffness
    4Heart weight
    3Blood alanine transaminase level
    3HDL cholesterol level
    3Wooden breast
    3Blood aspartate transaminase level
    3HDL/LDL ratio
    3Shank circumference
    3Cholesterol level
    3LDL cholesterol level
    3Blood total protein level
    3Carcass weight
    3Liver percentage
    3Blood creatinine level
    3Blood gamma-glutamyltranspeptidase level
    3Blood albumin level
    3Glucose level
    3AST to ALT ratio
    3White striping
    2Proventriculus weight
    2Yolk color
    2Intramuscular fat percentage
    2Fowl typhoid susceptibility
    2Body weight gain
    2Deep pectoral myopathy
    2Liver fat percentage
    2Meat color L*
    2Meat color b*
    2Drumstick and thigh muscle percentage
    # ReportsGoat Traits
    3Body weight
    2Teat number
    # ReportsHorse Traits
    12Insect bite hypersensitivity
    12Recurrent exertional rhabdomyolysis
    8Tendon injury
    7Bone fracture
    5Strongyle fecal egg count
    4Suspensory ligament injury
    4Withers height
    3Strongyle infection
    3Sperm progressive motility
    2Sperm count
    2Skinfold thickness
    2Walk score
    2Hair shaft diameter
    2Hoof conformation
    2Semen volume
    2Sperm concentration
    2Body condition score
    2Croup height
    2Conformation score
    2chronic progressive lymphedema
    2Trot score
    2Equine sarcoids
    2Gestation length
    2Leg conformation
    1Leptin level
    1Plasma protein level
    1Blood lactate level
    1Aspartate aminotransferase activity
    1Blood glucose level
    1neuroaxonal dystrophy
    1Blood creatinine level
    1ACTH level
    1Lymphocyte number
    1Red blood cell number
    1Creatine kinase level
    1Insulin level
    1White blood cell number
    1Triglyceride level
    1Blood adiponectin level
    1Neutrophil number
    1Chest circumference
    1Cannon bone circumference
    1Uric acid level
    1Number of progressively motile sperm
    1Blood non-esterified fatty acid level
    1hereditary equine regional dermal asthenia
    1Recurrent laryngeal neuropathy
    1Lactate dehydrogenase level
    # ReportsPig Traits
    116Total number born alive
    70Litter size
    51Number weaned
    44Average backfat thickness
    37Average daily gain
    23Litter weight, total
    21Number of stillborn
    20Sperm abnormality rate
    18Teat number
    18Sperm motility
    17Linoleic acid content
    17Palmitoleic acid content
    17Palmitic acid content
    17Stearic acid content
    17Oleic acid content
    16Myristic acid content
    15Polyunsaturated fatty acid content
    15Days to 100 kg
    15Saturated fatty acid content
    15Monounsaturated fatty acid content
    15Feed conversion ratio
    14Sperm concentration
    14Semen volume
    14Number of mummified pigs
    12Loin muscle area
    12Sperm per ejaculate
    11Linolenic acid content
    11Sperm progressive motility
    11Loin muscle depth
    10Residual feed intake
    10Eicosadienoic acid content
    10Arachidonic acid content
    10Arachidic acid content
    10Lean meat percentage
    9Daily feed intake
    9Time in feeder per day
    9cis-11-Eicosenoic acid content
    9Body weight
    9Number of visits to feeder per day
    9Carcass weight (hot)
    8Time in feeder per visit
    8Feed intake per feeding
    8Omega-6 fatty acid content
    8Omega-3 fatty acid content
    8Age at first farrowing
    8Omega-6 to omega-3 fatty acid ratio
    8Conformation score
    8Average feeding rate
    8Dihomo-gamma-linolenic acid content
    7Average chain length
    7Eicosadienoic acid to linoleic acid ratio
    7Oleic acid to stearic acid ratio
    7Cis-11-Eicosenoic acid to arachidic acid ratio
    7Days to 90 kg
    7Palmitoleic acid to palmitic acid ratio
    7Arachidonic acid to linoleic acid ratio
    7Monounsaturated fatty acid to saturated fatty acid ratio
    # ReportsSheep Traits
    28Average daily gain
    25Body weight
    18Residual feed intake
    17Feed conversion ratio
    12Kleiber ratio
    6Mean fiber diameter
    6Somatic cell score
    6Greasy fleece weight
    6Staple length
    5Fecal egg count
    5Milk Yield
    4Teat size
    4udder attachment
    4udder depth
    4Teat placement
    4Longissimus muscle area
    3Backfat at 12th/13th ribs
    3Dressing percentage
    3Fiber diameter coefficient of variance
    3Longissimus muscle depth
    3Feed intake
    3Fleece yield
    2Milk protein yield
    2Nematodirus FEC
    2Milk protein percentage
    2Milk fat yield
    2Hot carcass weight
    2Subcutaneous fat thickness
    1Number of visits to feeder per day
    1Milk protein content
    1Hind leg bone weight
    1Topside weight
    1Meat saturated fatty acid content
    1Meat linoleic acid content
    1Cooking loss
    1Wool crimp
    1Time in feeder per visit
    1Longissimus muscle width
    1Loin fat weight
    1Meat omega-3 fatty acid content
    1Tail length
    1Backfat at GR site
    1Feed intake per feeding
    1Meat linolenic acid content
    1Longissimus muscle weight
    1Horn circumference
    1Meat monounsaturated fatty acid content
    1Fiber diameter standard deviation
    1Age at first lambing
    1Meat omega-6 to omega-3 fatty acid ratio
    1Round weight
    1Gastrointestinal tract weight
    1Shear force
    1Pneumonia susceptibility
    1Backfat at fifth rib
    New Data: If you found correlation data that has not been included in the current release, please either (1) register for a curator account to directly input them (see "Database Curators / Editors" below), or (2) inform our Bioinformatics Team so that we can include your data for curation.
    Database Curators / Editors: The CorrDB is open to the public for data entry and update. By having a curator account on the CorrDB, you will be granted privileges to input and edit the database entries.
    Questions and Answers: Frequently asked questions and answers to address the questions raised with regard to the design, usage, application, utilities, new developments, and other related issues in the development of CorrDB.
    Data downloads:
    Release 17 data:
    ‣ tab delimited
    ‣ plain text
    ‣ gzip compressed
    Correlation data: Cattle
    Correlation data: Chicken
    Correlation data: Goat
    Correlation data: Horse
    Correlation data: Pig
    Correlation data: Sheep
    Heritability data: Cattle
    Heritability data: Chicken
    Heritability data: Goat
    Heritability data: Horse
    Heritability data: Pig
    Heritability data: Sheep


    Zhi-Liang Hu, Carissa A. Park, and James M. Reecy (2022). Bringing the Animal QTLdb and CorrDB into the future: meeting new challenges and providing updated services. Nucleic Acids Research, Volume 50, Issue D1, Pages D956–D961. DOI: 10.1093/nar/gkab1116

    Zhi-Liang Hu, Carissa A. Park, and James M. Reecy (2020). An Update on Database Growth and Improvements of Animal QTLdb and CorrDB. Plant & Animal Genomes XXVII Conference, January 11-15, 2020. Town & Country Convention Center, San Diego, CA.

    Zhi-Liang Hu, Carissa A. Park, and James M. Reecy (2019). Building a livestock genetic and genomic information knowledgebase through integrative developments of Animal QTLdb and CorrDB. Nucleic Acids Research, Volume 47, Issue D1, 8 January 2019, Pages D701–D710. DOI: 10.1093/nar/gky1084

    Zhi-Liang Hu, Carissa A. Park, and James M. Reecy (2018). Development of Animal QTLdb and CorrDB: Resynthesizing Big Data to Improve Meta-analysis of Genetic and Genomic Information. The 11th World Congress on Genetics Applied to Livestock Production (WCGALP). New Zealand, February 11-16, 2018.

    Zhi-Liang Hu, Carissa A. Park, and James M. Reecy (2018). Animal QTLdb and CorrDB updates: integrative development of genetics/genomics databases and tools to meet new challenges. Plant & Animal Genomes XXVI Conference, January 13-17, 2018. Town & Country Convention Center, San Diego, CA.

    Zhi-Liang Hu, Dinesh Kumar, and James Reecy. (2013). CorrDB: A livestock animal genetic/phenotypic trait correlation database. Plant & Animal Genomes XX Conference, January 11-16, 2013. Town & Country Convention Center, San Diego, CA.|/icons/links/Paglogo.gif|2

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