IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v60y2015i2id7977-cjas.html
   My bibliography  Save this article

Genetic correlations between type traits of young Polish Holstein-Friesian bulls and their daughters

Author

Listed:
  • W. Jagusiak

    (Agricultural University, Krakow, Poland)

  • A. Otwinowska-Mindur

    (Agricultural University, Krakow, Poland)

  • E. Ptak

    (Agricultural University, Krakow, Poland)

  • A. Żarnecki

    (National Research Institute of Animal Production, Balice, Poland)

Abstract

The objective of this study was to evaluate the usefulness of young bulls' conformation scores in a national type evaluation system. For this purpose the genetic correlations between conformation traits of sires and the same type traits of their daughters were estimated. Young bulls were evaluated as required for registration in the herd book and for entering progeny testing. Data were 7 linearly scored (1-9 scale) and 3 descriptive (scored from 50 to 100) conformation traits of 933 young bulls born between 2005 and 2008, and the same traits evaluated in their 65 479 daughters. A two-trait animal model was used to estimate genetic correlations between the type traits of bulls and their daughters. (Co)variance components were estimated by a Bayesian method via Gibbs sampling. Two linear models were used: the linear model for bulls included fixed linear regressions on age at evaluation, fixed effects of herd and classifier, and random additive genetic effect; the linear model for cows contained fixed effects of herd-year-season-classifier, lactation stage, fixed linear regression on age at calving, and random additive genetic effect. Estimates of bulls' heritabilities for all analyzed traits ranged from 0.07 for feet and legs to 0.25 for body depth. Heritabilities of cows were the lowest for rear legs rear view (0.05) and foot angle (0.06), and the highest for size (0.43). The genetic correlations between similarly described traits of bulls and their daughters were moderate to high (0.42-0.91). The lowest genetic correlation (0.42) was for chest width, and the highest (0.91) for rump angle. The magnitude of genetic correlations between pairs of type traits of sires and daughters was high enough to suggest that the body conformation of dairy cows can be improved by making use of some measurements taken from young bulls. Including highly correlated bull scores for size, rump angle, and three linear leg traits in the evaluation system could improve the accuracy of type breeding value evaluation.

Suggested Citation

  • W. Jagusiak & A. Otwinowska-Mindur & E. Ptak & A. Żarnecki, 2015. "Genetic correlations between type traits of young Polish Holstein-Friesian bulls and their daughters," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 60(2), pages 75-80.
    • Handle: RePEc:caa:jnlcjs:v:60:y:2015:i:2:id:7977-cjas
    DOI: 10.17221/7977-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/7977-CJAS.html
    Download Restriction: free of charge
    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/7977-CJAS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/7977-CJAS?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. L. Zavadilová & M. Štípková, 2012. "Genetic correlations between longevity and conformation traits in the Czech Holstein population," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(3), pages 125-136.
    2. E. Ptak & W. Jagusiak & A. Żarnecki & A. Otwinowska-Mindur, 2011. "Heritabilities and genetic correlations of lactational and daily somatic cell score with conformation traits in Polish Holstein cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(5), pages 205-212.
    3. E. Němcová & M. Štípková & L. Zavadilová, 2011. "Genetic parameters for linear type traits in Czech Holstein cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(4), pages 157-162.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. A. Otwinowska-Mindur & E. Ptak & W. Jagusiak, 2016. "Genetic relationship between lactation persistency and conformation traits in Polish Holstein-Friesian cow population," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(2), pages 75-81.
    2. V. Zink & L. Zavadilová & J. Lassen & M. Štípková & M. Vacek & L. Štolc, 2014. "Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 59(12), pages 539-547.
    3. J. Ducháček & J. Přibyl & L. Stádník & L. Vostrý & J. Beran & L. Štolc, 2011. "Stability of Aberdeen Angus breeding values in the Czech Republic from 1997 to 2007," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(11), pages 509-520.
    4. Luboš Novotný & Jan Frelich & Jan Beran & Ludmila Zavadilová, 2017. "Genetic relationship between type traits, number of lactations initiated, and lifetime milk performance in Czech Fleckvieh cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 62(12), pages 501-510.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlcjs:v:60:y:2015:i:2:id:7977-cjas. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.