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<dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:invenio="http://invenio-software.org/elements/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:identifier>doi:10.2174/0118740707389100251014053002</dc:identifier><dc:language>eng</dc:language><dc:creator>Doghbri, Lamia</dc:creator><dc:creator>Atigui, Moufida</dc:creator><dc:creator>Salhi, Imed</dc:creator><dc:creator>Carvajal-Serna, Melissa</dc:creator><dc:creator>Casao, Adriana</dc:creator><dc:creator>Dbara, Mohamed</dc:creator><dc:creator>Pérez Pe, Rosaura María</dc:creator><dc:creator>Hammadi, Mohamed</dc:creator><dc:creator>Kdidi, Samia</dc:creator><dc:title>Cam β-NGf supplementation: a promising approach to preserve dromedary camel sperm quality during short-term storage</dc:title><dc:identifier>ART-2025-148919</dc:identifier><dc:description>Introduction
The role of camel βeta-Nerve Growth Factor protein (Cam β-NGF), isolated from camel seminal plasma, in preserving sperm quality remains poorly defined. This study aimed to evaluate the impact of Cam β-NGF on mass motility, viability, and membrane integrity in dromedary (Camelus dromedarius) semen stored for 24 hours at 4 °C.

Methods
The semen samples were treated with varying concentrations of Cam β-NGF (10, 100, 500, and 1000 ng/mL) after preservation. Ten semen samples with mass motility ≥ 3 and viability ≥ 60% were selected, washed, suspended in HBSS, and treated with TCF-EY. After 24 hours of storage at 4 °C, samples were maintained at 36 °C with Cam β-NGF supplementation for 60 minutes. Mass motility, viability, and membrane integrity were assessed at T0, T30, and T60 minutes.

Results
The results revealed a significant decline in sperm quality traits after 24 hours of storage at 4 °C. However, mass motility was conserved after 30 minutes of incubation with 1000 ng/mL and 500 ng/mL of Cam β-NGF (p &lt; 0.05). On the other hand, viability was significantly higher after 60 minutes of incubation with 1000, 500, and 100 ng/mL of Cam β-NGF compared to the control extender and 10 ng/mL supplementation (p &lt; 0.05). Additionally, membrane integrity was significantly maintained at T30 and T60 minutes with 1000, 500, and 100 ng/mL of Cam β-NGF (p &lt; 0.05).

Discussion
Short‐term storage at 4 °C markedly reduced dromedary camel sperm motility, viability, and membrane integrity, consistent with cold‐induced oxidative stress. Adding purified Cam β-NGF dose-dependently preserved these parameters over 1 h of incubation, indicating its value as a protective supplement for semen storage.

Conclusion
Cam β-NGF helps protect and maintain sperm traits during short-term storage; it seems to reduce alterations that might lower sperm quality. Thus, supplementing semen with Cam β-NGF may help maintain sperm quality, offering potential benefits for artificial insemination programs in dromedaries.</dc:description><dc:date>2025</dc:date><dc:source>http://zaguan.unizar.es/record/170379</dc:source><dc:doi>10.2174/0118740707389100251014053002</dc:doi><dc:identifier>http://zaguan.unizar.es/record/170379</dc:identifier><dc:identifier>oai:zaguan.unizar.es:170379</dc:identifier><dc:relation>info:eu-repo/grantAgreement/ES/DGA/A07-17R</dc:relation><dc:identifier.citation>Open Biotechnology Journal 19 (2025), e18740707389100 [9 p.]</dc:identifier.citation><dc:rights>by</dc:rights><dc:rights>https://creativecommons.org/licenses/by/4.0/deed.es</dc:rights><dc:rights>info:eu-repo/semantics/openAccess</dc:rights></dc:dc>

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