IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v70y2025i2id203-2024-cjas.html
   My bibliography  Save this article

Analysis of ejaculate parameters and sperm morphology in roosters of initial laying strains

Author

Listed:
  • Ladislav Máchal

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Tomáš Kopec

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Zuzana Rečková

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Radek Filipčík

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Milan Večeřa

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Vojtěch Pešan

    (Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Eva Tůmová

    (Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The aim of this study was to evaluate the influence of laying hybrid lines of domestic fowl (Gallus gallus f. domestica) and their age on ejaculate parameters in roosters. Parameters assessed included ejaculate volume, sperm concentration, total sperm count (TSC), percentage of normal spermatozoa, and sperm motility. Additionally, morphological defects were observed: defects of the acrosome, head, neck, tail, and immature spermatozoa. The study included 120 roosters of the Barred Plymouth Rock, Sussex Light, Rhode Island Red, and Rhode Island White laying lines. Ejaculate was repeatedly evaluated at the ages of 34, 43, and 52 weeks. The average ejaculate volume was 0.52 ml, sperm concentration 2.53 × 109 cm-3, motility 81.1%, and defect occurrence rates were as follows: acrosome defects 0.7%, head defects 3.0%, neck defects 2.4%, and tail defects 2.9%. A statistically significant effect (P < 0.01) of the line was observed for all parameters except tail defects. Statistically significant differences between age categories were confirmed for volume, sperm concentration, TSC, immature spermatozoa, and normal spermatozoa (P < 0.01), as well as for ejaculate volume, neck, and tail defects (P < 0.05). The volume, concentration and TSC reached significantly higher values at 43 weeks of age. The incidence of normal spermatozoa and immature spermatozoa was significantly lower at 34 weeks of age. The interaction of age and line was significant (P < 0.01) for sperm concentration, TSC, motility, head, tail, and normal spermatozoa. The highest values of volume, concentration, and TSC were observed in the BPR line, which also exhibited the lowest occurrence of head defects and immature spermatozoa. The RIR line showed a higher occurrence of sperm defects. Younger roosters (34 and 43 weeks of age) had higher ejaculate parameter values and a higher occurrence of sperm defects compared to the older ones.

Suggested Citation

  • Ladislav Máchal & Tomáš Kopec & Zuzana Rečková & Radek Filipčík & Milan Večeřa & Vojtěch Pešan & Eva Tůmová, 2025. "Analysis of ejaculate parameters and sperm morphology in roosters of initial laying strains," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 70(2), pages 72-81.
  • Handle: RePEc:caa:jnlcjs:v:70:y:2025:i:2:id:203-2024-cjas
    DOI: 10.17221/203/2024-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/203/2024-CJAS.html
    Download Restriction: free of charge

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/203/2024-CJAS.pdf
    Download Restriction: free of charge

    File URL: https://libkey.io/10.17221/203/2024-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. Jarinkovičová & L. Máchal & J. Máchal & R. Filipčík & E. Tůmová & R. Horský, 2012. "Relationship of ejaculate quality and selected biochemical parameters of blood in cockerels of three laying lines," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(8), pages 370-376.
    2. M. Meamar & A.Z. Shahneh & M.J. Zamiri & S. Zeinoaldini & H. Kohram & M.R. Hashemi & S. Asghari, 2016. "Preservation effects of melatonin on the quality and fertility of native Fars rooster semen during liquid storage," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(1), pages 42-48.
    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. O. Šimoník & R. Rajmon & L. Stádník & J. Šichtař & J. Beran & J. Ducháček & P. Hodek & P. Trefil, 2016. "Effect of low-density lipoprotein addition to soybean lecithin-based extenders on bull spermatozoa following freezing-thawing - preliminary results," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(12), pages 560-567.
    2. M. Doležalová & L. Stádník & Z. Biniová & J. Ducháček & R. Stupka, 2016. "Equilibration and freezing interactions affecting bull sperm characteristics after thawing," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 61(11), pages 515-525.

    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:70:y:2025:i:2:id:203-2024-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.