Influence of testis state, temperature and delay in semen collection on spermatozoa motility in the cultured Siberian sturgeon (Acipenser baeri Brandt)

• Published in: Aquaculture
• Main Authors: Williot, Patrick, Kopeika, E.F., Goncharov, B.F.
• Other Authors: Ressources aquatiques continentales (UR RABX), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), ACADEMY OF SCIENCES OF UKRAINE KHARTOV UKR, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), ACADEMY OF SCIENCES OF RUSSIA MOSCOW RUS
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2000
• Subjects: CEMAGREF; RABX; [SDE]Environmental Sciences; Siberian sturgeon
• Online Access: https://hal.inrae.fr/hal-02579167; https://doi.org/10.1016/S0044-8486(00)00358-6

[Departement_IRSTEA]GMA [TR1_IRSTEA]12 - MILEAU / REPIGE International audience A factorial design was set up to test the effects of three factors on spermatozoa motility in cultured Siberian sturgeons, Acipenser baeri, removed from 10°C water temperature. From the four tested temperatures (10°C, 12.5°C, 15°C and 17.5°C) during hormonal treatment, the significantly highest spermatozoa motilities (65%) were obtained at 10°C and the lowest (41%) at 17.5°C. The increasing delay in semen collection gave the following results : 24 h (30% motility), 36 h (72%), 48 h (64%) and 60 h (53%). Males of which the testis state was referred to as firm or soft gave significantly better spermatozoa motilities (70%) as compared with viscous or liquid testis (40%). Semen pH, osmotic pressure and spermatocrit did not show any relationship with spermatozoa motility.