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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F12%3A43883481%21RIV13-AV0-12520___
rdf:type
skos:Concept n9:Vysledek
dcterms:description
Spermiation and changes in androgen (testosterone, T and 11-ketotestosterone, 11-KT) levels were studied in sterlet (Acipenser ruthenus) treated with GnRH agonist implants (dAla(6)-Pro(9)-LHRHa) at 25 and 75 mu g kg(-1) b.w. and compared with those males treated with 4 mg kg(-1) b.w. of carp pituitary extract (CPE) and 3 pellets of Ovopel kg(-1) b.w., which contains dAla(6)-Pro(9)NEt-mGnRH and metoclopramide. Sperm quality (sperm mass, spermatozoa concentration and sperm motility and velocity) was evaluated 24, 48 and 72 h after hormonal treatments. Males did not release sperm in the control group injected with physiological solution, while sperm could not be collected 7 days after treatments in all hormonally treated groups. Spermiation rates were 100 % in the CPE and Ovopel groups and 25-50 % in the GnRHa-treated groups. Sperm production was significantly lower in the GnRHa-treated groups than in the CPE and Ovopel groups and decreased 72 h after hormonal treatment. Sperm motility and velocity were higher in the Ovopel and GnRHa (75 mu g) groups compared to the CPE and GnRHa (25 mu g) groups and decreased 72 h after hormonal treatment. Androgens were only affected in spermiating males and changed in the Ovopel and GnRHa (75 mu g) after hormonal treatment. Significant correlations were observed between sperm production, sperm motility and sperm velocity, but not androgens. The present study suggests involvement of dopamine in sturgeon spawning. Additionally, better sperm quality observed in the Ovopel group and particularly sperm motility in the GnRHa (75 mu g) suggests enhancement of sperm quality in sturgeon treated with GnRHa. Therefore, further study is needed to induce fully spermiation using GnRHa implants in combination with a dopamine inhibitor. Spermiation and changes in androgen (testosterone, T and 11-ketotestosterone, 11-KT) levels were studied in sterlet (Acipenser ruthenus) treated with GnRH agonist implants (dAla(6)-Pro(9)-LHRHa) at 25 and 75 mu g kg(-1) b.w. and compared with those males treated with 4 mg kg(-1) b.w. of carp pituitary extract (CPE) and 3 pellets of Ovopel kg(-1) b.w., which contains dAla(6)-Pro(9)NEt-mGnRH and metoclopramide. Sperm quality (sperm mass, spermatozoa concentration and sperm motility and velocity) was evaluated 24, 48 and 72 h after hormonal treatments. Males did not release sperm in the control group injected with physiological solution, while sperm could not be collected 7 days after treatments in all hormonally treated groups. Spermiation rates were 100 % in the CPE and Ovopel groups and 25-50 % in the GnRHa-treated groups. Sperm production was significantly lower in the GnRHa-treated groups than in the CPE and Ovopel groups and decreased 72 h after hormonal treatment. Sperm motility and velocity were higher in the Ovopel and GnRHa (75 mu g) groups compared to the CPE and GnRHa (25 mu g) groups and decreased 72 h after hormonal treatment. Androgens were only affected in spermiating males and changed in the Ovopel and GnRHa (75 mu g) after hormonal treatment. Significant correlations were observed between sperm production, sperm motility and sperm velocity, but not androgens. The present study suggests involvement of dopamine in sturgeon spawning. Additionally, better sperm quality observed in the Ovopel group and particularly sperm motility in the GnRHa (75 mu g) suggests enhancement of sperm quality in sturgeon treated with GnRHa. Therefore, further study is needed to induce fully spermiation using GnRHa implants in combination with a dopamine inhibitor.
dcterms:title
Sperm characteristics and androgens in Acipenser ruthenus after induction of spermiation by carp pituitary extract or GnRHa implants Sperm characteristics and androgens in Acipenser ruthenus after induction of spermiation by carp pituitary extract or GnRHa implants
skos:prefLabel
Sperm characteristics and androgens in Acipenser ruthenus after induction of spermiation by carp pituitary extract or GnRHa implants Sperm characteristics and androgens in Acipenser ruthenus after induction of spermiation by carp pituitary extract or GnRHa implants
skos:notation
RIV/60076658:12520/12:43883481!RIV13-AV0-12520___
n9:predkladatel
n10:orjk%3A12520
n3:aktivita
n12:S n12:P
n3:aktivity
P(ED2.1.00/01.0024), P(GA523/09/1793), P(GAP502/11/0090), P(GAP503/12/1834), P(IAA608030801), P(ME10015), S
n3:cisloPeriodika
6
n3:dodaniDat
n15:2013
n3:domaciTvurceVysledku
n5:5876001 n5:6919707 n5:6555799 n5:9895744 n5:1593579 n5:3624900 n5:4849825 Hatef, Azadeh
n3:druhVysledku
n13:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
170411
n3:idVysledku
RIV/60076658:12520/12:43883481
n3:jazykVysledku
n16:eng
n3:klicovaSlova
11-ketotestosterone; Testosterone; Sperm production; Sperm motility; Ovopel; GnRHa implant
n3:klicoveSlovo
n7:11-ketotestosterone n7:Sperm%20motility n7:Testosterone n7:Ovopel n7:Sperm%20production n7:GnRHa%20implant
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[7B9FDAFCBC2F]
n3:nazevZdroje
Fish Physiology and Biochemistry
n3:obor
n8:GL
n3:pocetDomacichTvurcuVysledku
8
n3:pocetTvurcuVysledku
10
n3:projekt
n6:GA523%2F09%2F1793 n6:GAP503%2F12%2F1834 n6:ED2.1.00%2F01.0024 n6:IAA608030801 n6:GAP502%2F11%2F0090 n6:ME10015
n3:rokUplatneniVysledku
n15:2012
n3:svazekPeriodika
38
n3:tvurceVysledku
Papadaki, M. Gela, David Alavi, Sayyed Mohammad Hadi Kašpar, Vojtěch Hatef, Azadeh Mylonas, C. C. Rodina, Marek Podhorec, Peter Pšenička, Martin Linhart, Otomar
n3:wos
000310954900012
s:issn
0920-1742
s:numberOfPages
12
n18:doi
10.1007/s10695-012-9662-9
n17:organizacniJednotka
12520