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Titolo:
Spermiation of paddlefish (Polyodon spathula, Acipenseriformes) stimulatedwith injection of LHRH analogue and carp pituitary powder
Autore:
Linhart, O; Mims, SD; Gomelsky, B; Hiott, AE; Shelton, WL; Cosson, J; Rodina, M; Gela, D;
Indirizzi:
Univ S Bohemia, Res Inst Fish Culture & Hydrobiol, Vodnany 38925, Czech Republic Univ S Bohemia Vodnany Czech Republic 38925 odnany 38925, Czech Republic
Titolo Testata:
AQUATIC LIVING RESOURCES
fascicolo: 6, volume: 13, anno: 2000,
pagine: 455 - 460
SICI:
0990-7440(200011/12)13:6<455:SOP(SA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
GNRH ANALOGS; IMPLANTATION; EXTRACT;
Keywords:
hormone; spermiation; paddlefish; Polyodon spathula; induced breeding;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Linhart, O Univ S Bohemia, Res Inst Fish Culture & Hydrobiol, Vodnany 38925, Czech Republic Univ S Bohemia Vodnany Czech Republic 38925 5, Czech Republic
Citazione:
O. Linhart et al., "Spermiation of paddlefish (Polyodon spathula, Acipenseriformes) stimulatedwith injection of LHRH analogue and carp pituitary powder", AQU LIV RES, 13(6), 2000, pp. 455-460

Abstract

The potential of carp pituitary powder (CPP) at one dose, or the luteinizing hormone-releasing hormone (LH-RH) analogue, des-Gly(10), (D-Ala(6))-LH-RH-ethylainide, at three different doses to stimulate spermiation in paddlefish (Polyodon spathula) was tested. Single injections of the LH-RH analogueat 0.2, 0.1, or 0.05 mg.kg(-1) increased the number of spermatozoa per kilogram of body weight (kg(-1) b.w.) by 4.7, 3.4, and 3.4 times respectively compared to control, but the number of spermatozoa per kilogram of body weight decreased with CPP (4 mg.kg(-1)) by 1.7 times compared to the control. The LH-RH analogue prolonged active spermiation, with numbers of spermatozoa ranging from 7.69 to 1.19 x 10(9) kg(-1) b.w. up to 96 h after treatment. Analysis of variance showed significant influence of experimental groups on volume of sperm per male and per kilogram of body weight, and the total number of spermatozoa per kilogram of body weight, but insignificant influence on the total number of spermatozoa per male. The percentage of motile spermatozoa was not different between experimental groups for sperm collection at different times after injection. A very high positive correlation (r =0.93) was obtained between sperm concentration and sperm transmittance measured with a spectrophotometer. This relationship was described with the following linear regression: sperm concentration (x 10(9) mL(-1)) = 1.3244 X-0.9969 where X is the percentage of sperm transmittance. (C) 2000 Ifremer/CNRS/INRA/IRD/Cemagref/Editions scientifiques et medicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 15:27:26