OPTIMIZATION OF UV IRRADIATION FOR PRODUCTION OF GYNOGENETIC RAINBOW TROUT, ONCORHYNCHUS MYKISS: EMPHASISING HERTWIG EFFECT AND PHOTOREACTIVATION

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

DORAFSHAN S.; KALBASI M.R.; POURKAZEMI MOHAMMAD; MOJAZI AMIRI B.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Fisheries Sciences Year:2006 | Volume:6 | Issue:1 Page(s): 19-34

Download Full-Text

Persian Verion

View:

744

Download:

Cites:

Information Journal Paper

Title

OPTIMIZATION OF UV IRRADIATION FOR PRODUCTION OF GYNOGENETIC RAINBOW TROUT, ONCORHYNCHUS MYKISS: EMPHASISING HERTWIG EFFECT AND PHOTOREACTIVATION

Author(s)

DORAFSHAN S. | KALBASI M.R. | POURKAZEMI MOHAMMAD | MOJAZI AMIRI B. | Issue Writer Certificate

Keywords

GYNOGENESISQ3

HERTWIG EFFECTQ3

ONCORHYNCHUS MYKISSQ3

PHOTOREACTIVA-TIONQ2

RAINBOW TROUTQ2

ULTRAVIOLET IRRADIATIONQ2

Abstract

The optimum dose of UV irradiation to produce GYNOGENESIS RAINBOW TROUT, Oncorhynchusmykiss with emphasis of Hertwing effect and photoreactivation (PR) was investigated. For this purpose, the sperm of RAINBOW TROUT were inadiated with UV at 2010±200 µw.cm-2 intensity in different alternatives of 0, 1, 3, 5, 8, 10, 15, 20, 25, 35 and 45 minutes and allowed to fertilize normal ova; the fertilization, eyed and hatching rate were calculated to assess the performance. Using the irradiated sperm decreased the fertilization, eyed as well as hatching rates and the so-called "Hertwig effect" was observed, with the time-dependent decrease in hatching rate at 0+to 10 min of irradiation, but a better hatching rate at greater time of irradiation was observed. The highest hatching rate was observed in 20 min of UV irradiation; after that the survival rate decreased rapidly. Interestingly, irradiation even up to 45 min could not eradicate sperm fertility and a hatching rate above zero was observed at this treatment. For PR studies the semen was irradiated with UV for 5, 30 and 120 seconds and untreated semen (Os) was used as control. Irradiated semen and/or fertilized eggs by treated semen were exposed to visible light (60 W) at a distance of 30 cm for 10 min; the eyed and hatching rates were measured. The results showed that UV irradiation in as low as 5s could cause deleterious effect on semen chromatin and decrease the eyed and hatching rates (P<0.05). Illumination of semen and\or eggs with visible light resulted in PR in RAINBOW TROUT when sperm was irradiated by UV at 120s. We could conclude that the best UV irradiation time for production of GYNOGENESIS RAINBOW TROUT was 20 min and UV irradiation, fertilization and egg hardening must be done far from visible light to eliminate the PR mechanism.

Cites

No record.

References

No record.

Cite

APA: Copy

DORAFSHAN, S., KALBASI, M.R., POURKAZEMI, MOHAMMAD, & MOJAZI AMIRI, B.. (2006). OPTIMIZATION OF UV IRRADIATION FOR PRODUCTION OF GYNOGENETIC RAINBOW TROUT, ONCORHYNCHUS MYKISS: EMPHASISING HERTWIG EFFECT AND PHOTOREACTIVATION. IRANIAN JOURNAL OF FISHERIES SCIENCES, 6(1), 19-34. SID. https://sid.ir/paper/85955/en

Vancouver: Copy

DORAFSHAN S., KALBASI M.R., POURKAZEMI MOHAMMAD, MOJAZI AMIRI B.. OPTIMIZATION OF UV IRRADIATION FOR PRODUCTION OF GYNOGENETIC RAINBOW TROUT, ONCORHYNCHUS MYKISS: EMPHASISING HERTWIG EFFECT AND PHOTOREACTIVATION. IRANIAN JOURNAL OF FISHERIES SCIENCES[Internet]. 2006;6(1):19-34. Available from: https://sid.ir/paper/85955/en

IEEE: Copy

S. DORAFSHAN, M.R. KALBASI, MOHAMMAD POURKAZEMI, and B. MOJAZI AMIRI, “OPTIMIZATION OF UV IRRADIATION FOR PRODUCTION OF GYNOGENETIC RAINBOW TROUT, ONCORHYNCHUS MYKISS: EMPHASISING HERTWIG EFFECT AND PHOTOREACTIVATION,” IRANIAN JOURNAL OF FISHERIES SCIENCES, vol. 6, no. 1, pp. 19–34, 2006, [Online]. Available: https://sid.ir/paper/85955/en

Related Journal Papers