http://www.cnr.it/ontology/cnr/individuo/prodotto/ID48766
More effective induction of spawning with long-acting gnrh agonist in the shi drum, Umbrina cirrosa L. (Sciaenidae, Teleostei), a valuable canditate for Mediterranean mariculture (Articolo in rivista)
- Type
- Label
- More effective induction of spawning with long-acting gnrh agonist in the shi drum, Umbrina cirrosa L. (Sciaenidae, Teleostei), a valuable canditate for Mediterranean mariculture (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Alternative label
Barbaro A., Francescon A., Bertotto D, Bozzato G., Di Maria I., Patarnello P., Furlan F., Colombo L. (2002)
More effective induction of spawning with long-acting gnrh agonist in the shi drum, Umbrina cirrosa L. (Sciaenidae, Teleostei), a valuable canditate for Mediterranean mariculture
in Journal of applied ichthyology
(literal)
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- Barbaro A., Francescon A., Bertotto D, Bozzato G., Di Maria I., Patarnello P., Furlan F., Colombo L. (literal)
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- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
- Titolo
- More effective induction of spawning with long-acting gnrh agonist in the shi drum, Umbrina cirrosa L. (Sciaenidae, Teleostei), a valuable canditate for Mediterranean mariculture (literal)
- Abstract
- Three experiments of spawning induction in shi drum were performed in six
different commercial Italian hatcheries from May to August (water
temperatures: 19-29°C; salinity: 21-37 ppt). In the 1st experiment, 119
females (1-4.7 kg), subdivided into 29 lots, were injected with a single
dose (2, 5, 8, 10, 15 and 20 µg×kg-1 body weight) of short-acting GnRH
agonist (GnRHa-S), des-Gly10,[D-Ala6]-LH-RH ethylamide. In the other two
experiments, 85 females (0.7-5.8 kg), subdivided into 22 and 4 lots, were
treated with one (40 or 80 µg×kg-1) or three doses (40 µg×kg-1) of long-
acting GnRHa (GnRHa-L), respectively. GnRHa-S stimulated spawning in 69%
of the 29 treated lots; the number of laid eggs reached a maximum of
130,000 and a weighted mean of 29,200 total eggs×kg-1. GnRHa-L elicited a
spawning response in 95% of the 22 one-dose treated lots; the number of
laid eggs was higher than with GnRHa-S, reaching a maximum of 213,100 and
a weighted mean of 59,400 total eggs×kg-1. The yield of developing embryos
in 67% of the single GnRHa-L treatments was higher (sometimes up to three
times) than with GnRHa-S. Triple treatments of the 4 lots of females with
GnRHa-L resulted always in spawning responses; the best result
corresponded to a number of total laid eggs of 358,900 eggs×kg-1 with a
yield of 177,300 developing embryos. (literal)
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