Sperm biology and control of reproduction in sturgeon: (I) testicular development, sperm maturation and seminal plasma characteristics

Sperm biology and control of reproduction in sturgeon: (I) testicular development, sperm... Sturgeon (Chondrostei, Acipenseriformes) are threatened or endangered species due to overfishing and environmental degradation causing disruption of natural reproduction. Commercial sturgeon aquaculture and conservation program requires broodfish management as well as biogeographical and biological knowledge. Therefore, control of sturgeon reproduction in captivity can become as a valid tool in the field of sustainable development. The main objectives of the present review were to summarize, describe and synthesize available data about neuroendocrine control of testicular development, spermiation induction, seminal plasma characteristics and factors affecting sperm quality. In sturgeon, puberty usually occurs late in life and adult males do not spawn on an annual basis. Gonadal differentiation and spermatogonia proliferation occurs at 1–2 and 2–3 year-old, respectively. In spermatogenesis, environmental stimuli affect hypothalamus to release GnRH, which induce FSH release from pituitary stimulating testicular androgenesis, which is involved in spermatogonial proliferation and spermatogenesis. At spawning season, GnRH stimulates LH production from pituitary, regulating 17α,20β-dihydroxy-4-pregnen-3-one production in testis, which control sperm maturation. In captivity, hormonal treatment is essential to induce spermiation. Chemical and biochemical compounds of the seminal plasma are important to protect viability, motility and fertilizing capacity of spermatozoa. Several kinds of acrosomal enzymes have been identified in sturgeon seminal plasma; higher concentrations reported in the frozen/thawed than fresh sperm suggesting their origination from spermatozoa. Moreover, there are numerous factors that influence on sperm quality including temperature, methods for spermiation induction, stripping frequency and stress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Sperm biology and control of reproduction in sturgeon: (I) testicular development, sperm maturation and seminal plasma characteristics

Loading next page...
 
/lp/springer_journal/sperm-biology-and-control-of-reproduction-in-sturgeon-i-testicular-OKiVeTq9KO
Publisher
Springer Netherlands
Copyright
Copyright © 2012 by Springer Science+Business Media B.V.
Subject
Life Sciences; Zoology; Freshwater & Marine Ecology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-012-9268-4
Publisher site
See Article on Publisher Site

References

  • Chemical composition and osmolality of seminal fluid of Acipenser persicus; their physiological relationship with sperm motility
    Alavi, SMH; Cosson, J; Karami, M; Abdoulhay, H; Amiri, BM
  • Semen characteristics in Acipenser persicus in relation to sequential stripping
    Alavi, SMH; Cosson, J; Kazemi, R

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial