Release 13
(Aug 23, 2021)
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 23,552 correlation data on 866 traits, and 4,273 heritability data on 1,069 traits, in 6 livestock animal species have been curated from 408 publications.

Cattle Chicken Goat Horse Pig Sheep
Release 13 data summary
Species Correlations Heritability
CountTraits CountTraits
Cattle 12,801377 2,173481
Chicken 1,45584 318114
Goat 31132 21
Horse 20927 11853
Pig 7,161260 1,444301
Sheep 1,61586 218119
Sum23,552866 4,2731,069
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  • Correlation data reported by species and correlation types
    Species Corr Types CattleChickenGoatHorsePigSheepSUM
    Environment  329 
    (490)
    55 
    (55)

    (2)
    34 
    (166)
    74 
    (82)
    493 
    (795)
    Genetic  3,233 
    (6,408)
    426 
    (693)
    76 
    (106)
    1,574 
    (4,278)
    626 
    (753)
    5,935 
    (12,238)
    Phenotypic  3,453 
    (5,462)
    400 
    (707)
    308 
    (311)
    60 
    (86)
    1,503 
    (2,535)
    642 
    (759)
    6,366 
    (9,860)
    Residual  349 
    (441)
    12 
    (15)
    118 
    (182)
    21 
    (21)
    500 
    (659)
    SUM7,364
    (12,801)
    881
    (1,455)
    308
    (311)
    149
    (209)
    3,229
    (7,161)
    1,363
    (1,615)
    13,294 
    (23,552)
    Note:: Bold numbers represent counts of correlation trait pairs;
    In parenthesis are counts of multiple correlations reported.
    Heritability data reported by species
    # ReportsCattle Traits
    54Milk yield
    48Milk fat yield
    47Milk protein yield
    40Somatic cell score
    36Longissimus muscle area
    35Marbling score
    35Carcass weight
    34Average daily gain
    32Milk protein percentage
    31Milk fat percentage
    22Fat thickness at the 12th rib
    20Dry matter intake
    19Clinical mastitis
    19Residual feed intake
    17Subcutaneous fat
    16Body weight (birth)
    16Metabolic body weight
    15Udder cleft
    14Udder attachment
    14Calving interval
    14Udder depth
    13Milk lactose content
    13Shear force
    13Milk palmitic acid content
    13Milk myristic acid content
    13Dressing percentage
    13Milk oleic acid content
    13Milk stearic acid content
    12Muscularity
    12Milk capric acid content
    12Milk lauric acid content
    12Milk saturated fatty acid content
    12Age at first calving
    12305-day milk yield
    12Milk lactose yield
    12Milk caprylic acid content
    12Body weight (weaning)
    12Stature
    12Ketosis
    12Udder height
    11Milk unsaturated fatty acid content
    11M. paratuberculosis susceptibility
    11Calving to conception interval
    11Feet and leg conformation
    11Dairy form
    11Interval to first estrus after calving
    11Kidney, pelvic, and heart fat percentage
    11Yield grade
    11Body condition score
    11Conformation score
    10Teat placement - front
    10Body depth
    10Tenderness score
    10Retail product yield
    10Juiciness
    9Milk alpha-S2-casein percentage
    9Body weight (yearling)
    # ReportsChicken Traits
    14Egg weight
    13Eggshell strength
    11Abdominal fat weight
    10Egg number
    9Abdominal fat percentage
    8Eggshell thickness
    7Albumen height
    7Eggshell shape
    7Feed conversion ratio
    7Feed intake
    6Residual feed intake
    6Age at first egg
    6Eggshell color
    5Body weight (42 days)
    5Liver weight
    5Body weight (49 days)
    5Breast muscle percentage
    4Blood bile acid level
    4Triglyceride level
    4Blood albumin to globulin ratio
    4Blood globulin level
    4Average daily gain
    4Blood uric acid level
    4Eggshell stiffness
    4Breast muscle weight
    3Blood alanine transaminase level
    3Gizzard weight
    3HDL cholesterol level
    3Wooden breast
    3Blood aspartate transaminase level
    3Body weight (28 days)
    3Haugh units
    3HDL/LDL ratio
    3Cholesterol level
    3LDL cholesterol level
    3Blood total protein level
    3Carcass weight
    3Liver percentage
    3Blood creatinine level
    3Blood gamma-glutamyltranspeptidase level
    3Blood albumin level
    3Heart weight
    3Glucose level
    3AST to ALT ratio
    3White striping
    3Body weight
    2Yolk color
    2Intramuscular fat percentage
    2Fowl typhoid susceptibility
    2Body weight (slaughter)
    2Deep pectoral myopathy
    2Liver fat percentage
    2Meat color L*
    2Meat color b*
    2Drumstick and thigh muscle percentage
    2Skin weight
    2Egg weight {28wks}
    # ReportsGoat Traits
    2Teat number
    # ReportsHorse Traits
    12Insect bite hypersensitivity
    12Recurrent exertional rhabdomyolysis
    8Tendon injury
    7Bone fracture
    5Strongyle fecal egg count
    4Suspensory ligament injury
    4Withers height
    4Osteoarthritis
    3Strongyle infection
    3twinning
    2Epistaxis
    2Skinfold thickness
    2Walk score
    2Hair shaft diameter
    2Hoof conformation
    2Body condition score
    2Croup height
    2Conformation score
    2chronic progressive lymphedema
    2Trot score
    2Equine sarcoids
    2Gestation length
    2Leg conformation
    1Sperm count
    1Leptin level
    1Plasma protein level
    1Hematocrit
    1Blood lactate level
    1Aspartate aminotransferase activity
    1Blood glucose level
    1Hemoglobin
    1neuroaxonal dystrophy
    1Semen volume
    1Blood creatinine level
    1ACTH level
    1Lymphocyte number
    1Red blood cell number
    1Creatine kinase level
    1Insulin level
    1Sperm concentration
    1White blood cell number
    1Triglyceride level
    1Blood adiponectin level
    1Neutrophil number
    1Chest circumference
    1Sperm progressive motility
    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
    47Average backfat thickness
    47Average daily gain
    41Total number born alive
    20Feed conversion ratio
    19Linoleic acid content
    19Oleic acid content
    19Palmitic acid content
    19Stearic acid content
    18Palmitoleic acid content
    18Sperm abnormality rate
    17Litter size
    17Myristic acid content
    16Polyunsaturated fatty acid content
    16Litter weight, total {21d}
    16Saturated fatty acid content
    16Monounsaturated fatty acid content
    15Total number born alive {1stPrty}
    15Total number born alive {3rdPrty}
    15Loin muscle area
    15Sperm motility
    15Total number born alive {2ndPrty}
    14Daily feed intake
    14Total number born alive {4thPrty}
    13Intramuscular fat content
    13Number weaned
    13Residual feed intake
    13Teat number
    13Lean meat percentage
    12Days to 100 kg
    12Linolenic acid content
    11Semen volume
    11Sperm progressive motility
    11Sperm concentration
    11Carcass weight (hot)
    10Sperm per ejaculate
    10Eicosadienoic acid content
    10Litter size {1stPrty}
    10Arachidonic acid content
    10Meat color L*
    10Litter size {2ndPrty}
    10Litter size {4thPrty}
    10Litter size {3rdPrty}
    10Arachidic acid content
    9Loin muscle depth
    9Time in feeder per day
    9cis-11-Eicosenoic acid content
    9Number of visits to feeder per day
    8Number weaned {4thPrty}
    8Omega-6 fatty acid content
    8Omega-6 to omega-3 fatty acid ratio
    8Number weaned {3rdPrty}
    8Average feeding rate
    8Dihomo-gamma-linolenic acid content
    8Time in feeder per visit
    8Feed intake per feeding
    8Omega-3 fatty acid content
    8Number weaned {2ndPrty}
    # ReportsSheep Traits
    10Body weight (birth)
    10Body weight (weaning)
    7Average daily gain {pre-weaning}
    6Kleiber ratio
    5Mean fiber diameter
    5Backfat at 12th/13th ribs
    5Average daily gain
    5Greasy fleece weight
    5Longissimus muscle depth
    4Somatic Cell Score
    4Staple length
    3Body weight {6mo}
    3Fiber diameter standard deviation
    3Body weight {yearling}
    3Average daily gain {BirthToWeaning}
    3Kleiber ratio {BirthToWeaning}
    3Dressing percentage
    3Fiber diameter coefficient of variance
    3Hot carcass weight
    3Staple strength
    3Milk Yield
    3Body weight {9mo}
    3Fleece yield
    2Residual feed intake
    2Kleiber ratio {BirthTo6Mos}
    2Average daily gain {WeaningTo6Mos}
    2Longissimus muscle width
    2Fiber curvature
    2Backfat at GR site
    2Nematodirus FEC
    2Fecal egg count
    2Feed intake {PerDay}
    2Kleiber ratio {WeaningTo6Mos}
    2Teat size
    2udder attachment
    2Clean fleece weight
    2Average daily gain {3-6Mos}
    2Kleiber ratio {3-6Mos}
    2udder depth
    2Teat placement
    2Average daily gain {BirthTo6Mos}
    2Longissimus muscle area
    2Body weight
    1Number of visits to feeder per day
    1udder depth {LaterPrty}
    1Hind leg bone weight
    1Topside weight
    1Breech wrinkle
    1Meat saturated fatty acid content
    1Meat linoleic acid content
    1Cooking loss
    1Hematocrit
    1Time in feeder per visit
    1udder attachment {LaterPrty}
    1Body weight {weaning}
    1Body weight (yearling)
    1Kleiber ratio {WeaningTo9Mos}
    Database maintenance note:
     Feb. 24, 2021: 1,241 heritability data entered prior to 2012 were recalled as part of our data quality assurance efforts.
    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.
    REFERENCE:
    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 7-16, 2018.

    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.

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