Release 15
(Apr 26, 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 22,105 correlation data on 741 traits, and 3,737 heritability data on 837 traits, in 6 livestock animal species have been curated from 414 publications.

Cattle Chicken Goat Horse Pig Sheep
Release 15 data summary
Species Correlations Heritability
CountTraits CountTraits
Cattle 11,945338 2,040375
Chicken 1,33370 22884
Goat 31132 52
Horse 20927 12353
Pig 6,902212 1,212254
Sheep 1,40562 12969
Sum22,105741 3,737837
Last 30 days visitor activities
  • Web visits: 307 (hits)
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  • Correlation data reported by species and correlation types
    Species Corr Types CattleChickenGoatHorsePigSheepSUM
    Environment  332 

    Genetic  3,260 
    Phenotypic  3,494 
    Residual  349 
    Note:: Bold numbers represent counts of correlation trait pairs;
    In parenthesis are counts of multiple correlations reported.
    Heritability data reported by species
    # ReportsCattle Traits
    61Milk yield
    55Milk fat yield
    54Milk protein yield
    48Somatic cell score
    38Average daily gain
    36Milk protein percentage
    35Milk fat percentage
    34Longissimus muscle area
    33Marbling score
    33Carcass weight
    30Body weight
    20Fat thickness at the 12th rib
    19Clinical mastitis
    19Dry matter intake
    18Residual feed intake
    17Subcutaneous fat thickness
    16Calving interval
    15Udder cleft
    15Metabolic body weight
    14Calving to conception interval
    14Udder attachment
    14Udder depth
    13Milk lactose content
    13Shear force
    13Sperm motility
    13Hip height
    13Milk palmitic acid content
    13Milk myristic acid content
    13Milk oleic acid content
    13Milk stearic acid content
    12Milk capric acid content
    12Milk lauric acid content
    12Milk saturated fatty acid content
    12Interval to first estrus after calving
    12Milk lactose yield
    12Milk caprylic acid content
    12Dressing percentage
    12Udder height
    11Milk unsaturated fatty acid content
    11M. paratuberculosis susceptibility
    11Feet and leg conformation
    11Dairy form
    11Semen volume
    10Age at first calving
    10305-day milk yield
    10Teat placement - front
    10Tenderness score
    10Conformation score
    9Milk alpha-S2-casein percentage
    9Milk long-chain fatty acid content
    9Body size
    9Milk alpha-lactalbumin percentage
    9Milk short-chain fatty acid content
    9Milk beta-casein percentage
    # ReportsChicken Traits
    14Egg number
    14Egg weight
    13Eggshell strength
    8Eggshell thickness
    7Albumen height
    7Age at first egg
    7Eggshell shape
    6Eggshell color
    6Body weight
    4Blood bile acid level
    4Triglyceride level
    4Blood albumin to globulin ratio
    4Blood globulin level
    4Average daily gain
    4Blood uric acid level
    4Eggshell stiffness
    3Residual feed intake
    3Blood alanine transaminase level
    3Gizzard weight
    3HDL cholesterol level
    3Liver weight
    3Blood aspartate transaminase level
    3Haugh units
    3HDL/LDL ratio
    3Cholesterol level
    3LDL cholesterol level
    3Blood total protein level
    3Blood creatinine level
    3Blood gamma-glutamyltranspeptidase level
    3Feed conversion ratio
    3Blood albumin level
    3Glucose level
    3Heart weight
    3AST to ALT ratio
    3Abdominal fat weight
    3Feed intake
    2Proventriculus weight
    2Yolk color
    2Fowl typhoid susceptibility
    2Abdominal fat percentage
    2Ascites syndrome incidence
    2Avian influenza susceptibility
    2Viral load, Newcastle Disease Virus
    2VLDL cholesterol level
    2Breast muscle weight
    2Breast muscle percentage
    1Shank length
    1Eggshell mammillary density
    1Body circumference
    1Feather density
    1Albumen weight
    1Carcass fat content, dry matter basis
    1Comb height
    1Spleen weight
    1Meat color L*
    1Meat color b*
    1Eggshell effective layer thickness
    # 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
    46Average backfat thickness
    44Average daily gain
    29Total number born alive
    20Sperm abnormality rate
    19Linoleic acid content
    19Palmitic acid content
    19Stearic acid content
    19Litter size
    19Oleic acid content
    18Palmitoleic acid content
    18Sperm motility
    17Myristic acid content
    17Feed conversion ratio
    16Polyunsaturated fatty acid content
    16Saturated fatty acid content
    16Monounsaturated fatty acid content
    14Sperm concentration
    14Semen volume
    14Loin muscle area
    13Daily feed intake
    13Teat number
    13Lean meat percentage
    12Residual feed intake
    12Days to 100 kg
    12Sperm per ejaculate
    12Linolenic acid content
    11Sperm progressive motility
    10Eicosadienoic acid content
    10Arachidonic acid content
    10Intramuscular fat content
    10Meat color L*
    10Arachidic acid content
    10Carcass weight (hot)
    9Time in feeder per day
    9cis-11-Eicosenoic acid content
    9Number of visits to feeder per day
    9Loin muscle depth
    8Time in feeder per visit
    8Feed intake per feeding
    8Omega-6 fatty acid content
    8Omega-3 fatty acid content
    8Water holding capacity
    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
    7Age at first farrowing
    7Days to 90 kg
    7Palmitoleic acid to palmitic acid ratio
    7Arachidonic acid to linoleic acid ratio
    7Carcass length
    7Monounsaturated fatty acid to saturated fatty acid ratio
    7Unsaturated index
    # ReportsSheep Traits
    14Body weight
    6Mean fiber diameter
    6Average daily gain
    6Greasy fleece weight
    6Staple length
    5Fecal egg count
    5Somatic Cell Score
    4Milk Yield
    3Fiber diameter coefficient of variance
    3Longissimus muscle area
    3Fleece yield
    2Nematodirus FEC
    2Teat size
    2Backfat at 12th/13th ribs
    2udder attachment
    2Dressing percentage
    2udder depth
    2Teat placement
    2Longissimus muscle depth
    2Hot carcass weight
    2Kleiber ratio
    1Milk protein content
    1Hind leg bone weight
    1Topside weight
    1Meat saturated fatty acid content
    1Meat linoleic acid content
    1Cooking loss
    1Wool crimp
    1Longissimus muscle width
    1Loin fat weight
    1Meat omega-3 fatty acid content
    1Backfat at GR site
    1Milk protein yield
    1Meat linolenic acid content
    1Longissimus muscle weight
    1Horn circumference
    1Meat monounsaturated fatty acid content
    1Fiber diameter standard deviation
    1Meat omega-6 to omega-3 fatty acid ratio
    1Round weight
    1Shear force
    1Pneumonia susceptibility
    1Haemonchus contortus FEC
    1Backfat at fifth rib
    1Meat palmitic acid content
    1Kidney fat weight
    1Clean fleece weight
    1Meat omega-6 fatty acid content
    1Chest width
    1Lean meat yield percentage
    1Carcass length
    1Meat polyunsaturated fatty acid content
    1Meat palmitoleic acid content
    1Meat polyunsaturated fatty acid to saturated fatty acid ratio
    1Meat stearic acid content
    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 15 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 (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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