Ostrich ejaculate characteristics and male libido around equinox and solstice dates

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dc.contributor.authorMuvhali, P. T.en_ZA
dc.contributor.authorBonato, M.en_ZA
dc.contributor.authorMalecki, I. A.en_ZA
dc.contributor.authorDu Plessis, L.en_ZA
dc.contributor.authorSoley, J. T.en_ZA
dc.contributor.authorCloete, S. W. P. (Schalk Willem Petrus van der Merwe)en_ZA
dc.date.accessioned2020-09-22T15:55:03Z
dc.date.available2020-09-22T15:55:03Z
dc.date.issued2020
dc.descriptionCITATION: Muvhali, P. T., et al. 2020. Ostrich ejaculate characteristics and male libido around equinox and solstice dates. Tropical Animal Health and Production, 52:2609–2619, doi:10.1007/s11250-020-02299-2.
dc.descriptionThe original publication is available at https://link.springer.com
dc.description.abstractThe study evaluated the effect of time of the year in which changes in photoperiod occurs on ostrich semen characteristics and male libido. Semen was collected for 5 days before, on and 5 days after winter solstice (21 June 2016), spring equinox (22 September 2016), summer solstice (21 December 2016) and autumn equinox (20 March 2017) in the southern hemisphere. Semen was collected from 10 South African Black ostrich males (average age ± standard deviation; 4.5 ± 2.27 years) using the dummy female. Semen volume, sperm concentration, total sperm per ejaculate, sperm motility traits, percentage of normal sperm, head and tail abnormalities and percentage of affected sperm in the hypo-osmotic swelling test (HOS) were evaluated. Male libido defined as the willingness of males to mount the dummy female was also recorded. Semen samples collected around summer solstice, spring and autumn equinox were higher in sperm concentration and sperm output compared with winter solstice (P < 0.05). Study periods did not influence semen volume, sperm motility traits, the percentage of normal sperm, head abnormalities and HOS. Tail abnormalities were higher around winter solstice than around spring equinox (P < 0.05). Male libido and the success of semen collection were significantly higher around spring equinox (P < 0.05). Changes in photoperiod in the southern hemisphere do not affect semen production in ostriches. However, high sperm output and male libido around spring equinox and summer solstice dates suggest that these periods may be preferred for semen collection for artificial insemination and storage purposes.en_ZA
dc.description.urihttps://link.springer.com/article/10.1007%2Fs11250-020-02299-2
dc.description.versionPreprint
dc.format.extent24 pages : illustrations
dc.identifier.citationMuvhali, P. T., et al. 2020. Ostrich ejaculate characteristics and male libido around equinox and solstice dates. Tropical Animal Health and Production, 52:2609–2619, doi:10.1007/s11250-020-02299-2
dc.identifier.issn1573-7438 (online)
dc.identifier.issn0049-4747 (print)
dc.identifier.otherdoi:10.1007/s11250-020-02299-2
dc.identifier.urihttp://hdl.handle.net/10019.1/108837
dc.language.isoen_ZAen_ZA
dc.publisherSpringer
dc.rights.holderAuthors retain copyright
dc.subjectOstriches -- Artificial inseminationen_ZA
dc.subjectPhotoperiodismen_ZA
dc.subjectStruthio camelus -- Artificial inseminationen_ZA
dc.subjectStruthio camelusen_ZA
dc.subjectLibidoen_ZA
dc.subjectEnergy, Sexualen_ZA
dc.subjectOstriches -- Fertilizationen_ZA
dc.subjectOstriches -- Breedingen_ZA
dc.subjectOstriches -- Reproductionen_ZA
dc.titleOstrich ejaculate characteristics and male libido around equinox and solstice datesen_ZA
dc.typeArticleen_ZA
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