Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin
The effect of single and double injections of D-Tle6,Pro9,NEt-mGnRHa (Supergestran®) on advancement and induction of ovulation in Arctic grayling was assessed. Sexually mature wild Arctic grayling females (most 2-4 years old) were caught in the Yenisey River at the beginning of May 2010. After a 4-d...
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Czech Academy of Agricultural Sciences
2013
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ftdoajarticles:oai:doaj.org/article:ff34a66cce484b24a9048d0655b370c3 2023-05-15T14:26:23+02:00 Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin V. Švinger T. Hansen Y. Shadrin T. Policar J. Kouřil 2013-01-01T00:00:00Z https://doi.org/10.17221/6520-CJAS https://doaj.org/article/ff34a66cce484b24a9048d0655b370c3 EN eng Czech Academy of Agricultural Sciences https://cjas.agriculturejournals.cz/artkey/cjs-201301-0003_induction-and-advancement-of-ovulation-in-wild-arctic-grayling-thymallus-arcticus-arcticus-using-d-tle6-pro9.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/6520-CJAS https://doaj.org/article/ff34a66cce484b24a9048d0655b370c3 Czech Journal of Animal Science, Vol 58, Iss 1, Pp 8-14 (2013) salmonids reproduction single injection double injection gnrha Animal culture SF1-1100 article 2013 ftdoajarticles https://doi.org/10.17221/6520-CJAS 2023-02-26T01:34:57Z The effect of single and double injections of D-Tle6,Pro9,NEt-mGnRHa (Supergestran®) on advancement and induction of ovulation in Arctic grayling was assessed. Sexually mature wild Arctic grayling females (most 2-4 years old) were caught in the Yenisey River at the beginning of May 2010. After a 4-day acclimatization, the females were randomly divided into four groups and intramuscularly injected as follows: group A, control group, treated with physiological saline only; group B, treated with a single injection (SI) of Supergestran® at 25 µg/kg body weight (BW); group C, injected twice (DI) with 25 µg/kg BW 3 days apart; group D, injected twice with 10 µg/kg BW 3 days apart. After stripping, the pseudo-gonadosomatic index was calculated, and an eggs sample from each female was fertilized. Only fish in the groups treated with DI protocols ovulated. No differences between the two groups were found in the timing of ovulation, ovulation rate, or mean time to ovulation. No females in either group A or B ovulated, since the experiment had to be prematurely terminated due to technical problems at the field hatchery. The DI of 10 µg/kg proved sufficient to induce and advance ovulation in Arctic grayling. Hormone treatments seem to be a promising tool to obtain viable eggs of Arctic grayling in a short time window and thereby to ensure satisfactory numbers of fry for restocking programs. Article in Journal/Newspaper Arctic Arctic grayling Arctic Thymallus arcticus yenisey river Directory of Open Access Journals: DOAJ Articles Arctic Yenisey ENVELOPE(82.680,82.680,71.828,71.828) Czech Journal of Animal Science 58 1 8 14 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
salmonids reproduction single injection double injection gnrha Animal culture SF1-1100 |
spellingShingle |
salmonids reproduction single injection double injection gnrha Animal culture SF1-1100 V. Švinger T. Hansen Y. Shadrin T. Policar J. Kouřil Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
topic_facet |
salmonids reproduction single injection double injection gnrha Animal culture SF1-1100 |
description |
The effect of single and double injections of D-Tle6,Pro9,NEt-mGnRHa (Supergestran®) on advancement and induction of ovulation in Arctic grayling was assessed. Sexually mature wild Arctic grayling females (most 2-4 years old) were caught in the Yenisey River at the beginning of May 2010. After a 4-day acclimatization, the females were randomly divided into four groups and intramuscularly injected as follows: group A, control group, treated with physiological saline only; group B, treated with a single injection (SI) of Supergestran® at 25 µg/kg body weight (BW); group C, injected twice (DI) with 25 µg/kg BW 3 days apart; group D, injected twice with 10 µg/kg BW 3 days apart. After stripping, the pseudo-gonadosomatic index was calculated, and an eggs sample from each female was fertilized. Only fish in the groups treated with DI protocols ovulated. No differences between the two groups were found in the timing of ovulation, ovulation rate, or mean time to ovulation. No females in either group A or B ovulated, since the experiment had to be prematurely terminated due to technical problems at the field hatchery. The DI of 10 µg/kg proved sufficient to induce and advance ovulation in Arctic grayling. Hormone treatments seem to be a promising tool to obtain viable eggs of Arctic grayling in a short time window and thereby to ensure satisfactory numbers of fry for restocking programs. |
format |
Article in Journal/Newspaper |
author |
V. Švinger T. Hansen Y. Shadrin T. Policar J. Kouřil |
author_facet |
V. Švinger T. Hansen Y. Shadrin T. Policar J. Kouřil |
author_sort |
V. Švinger |
title |
Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
title_short |
Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
title_full |
Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
title_fullStr |
Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
title_full_unstemmed |
Induction and advancement of ovulation in wild Arctic grayling (Thymallus arcticus arcticus) using D-Tle6,Pro9,NEt-mGnRHa Lecirelin |
title_sort |
induction and advancement of ovulation in wild arctic grayling (thymallus arcticus arcticus) using d-tle6,pro9,net-mgnrha lecirelin |
publisher |
Czech Academy of Agricultural Sciences |
publishDate |
2013 |
url |
https://doi.org/10.17221/6520-CJAS https://doaj.org/article/ff34a66cce484b24a9048d0655b370c3 |
long_lat |
ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Yenisey |
geographic_facet |
Arctic Yenisey |
genre |
Arctic Arctic grayling Arctic Thymallus arcticus yenisey river |
genre_facet |
Arctic Arctic grayling Arctic Thymallus arcticus yenisey river |
op_source |
Czech Journal of Animal Science, Vol 58, Iss 1, Pp 8-14 (2013) |
op_relation |
https://cjas.agriculturejournals.cz/artkey/cjs-201301-0003_induction-and-advancement-of-ovulation-in-wild-arctic-grayling-thymallus-arcticus-arcticus-using-d-tle6-pro9.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/6520-CJAS https://doaj.org/article/ff34a66cce484b24a9048d0655b370c3 |
op_doi |
https://doi.org/10.17221/6520-CJAS |
container_title |
Czech Journal of Animal Science |
container_volume |
58 |
container_issue |
1 |
container_start_page |
8 |
op_container_end_page |
14 |
_version_ |
1766298911072321536 |