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Influence of testis state, temperature and delay in semen collection on spermatozoa motility in the cultured Siberian sturgeon (Acipenser baeri Brandt)
Williot, P.; Kopeika, E.F.; Goncharov, B.F. (2000). Influence of testis state, temperature and delay in semen collection on spermatozoa motility in the cultured Siberian sturgeon (Acipenser baeri Brandt). Aquaculture 189: 53-61
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Williot, P.
  • Kopeika, E.F.
  • Goncharov, B.F.

Abstract
    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. 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.

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