Stripped and testicular sperm of fresh and seawater tilapia, Oreochromis mossambicus.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F99%3A00005789" target="_blank" >RIV/60076658:12610/99:00005789 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Stripped and testicular sperm of fresh and seawater tilapia, Oreochromis mossambicus.

Popis výsledku v původním jazyce

A significantly higher concentration of testicular spermatozoa was obtained from freshwater oreochromis mossambicus /9,9x10 spermatozoa ml/ than seawater O. mossambicus /4,6x10 spermatozoa ml/. The mean osmolality of the urine of freshwater fish /78,5 mosmol kg/ was significantny different that of seawater fish /304,8 mOsmol kg/ the mean lenght of the mid-piece of the spermatozoa together with the tail was more variable in freshwater O. mossambicus /8,80-0,23um/ than in seawater specimens /8,27+0,18/. Stripped sperm of freshwater O,. mossambicus was higly contaminated by urine wchich was a good activator of sperm motility in O. mossambicus held in both fresh and sea water. The osmolality for initiation of motility in freshwater Omossambicus spermatozoawas from 0 to 1022 mOsmol kg. The optimum osmolality for motility was from 70 70 to 333 mOsmolkg, for freshwater fish. In freshwater O. mosambicus spermatozoa the presence of 20 mM CaCl increased the permisive osmolality of NaCl from 184

Název v anglickém jazyce

Stripped and testicular sperm of fresh and seawater tilapia, Oreochromis mossambicus.

Popis výsledku anglicky

A significantly higher concentration of testicular spermatozoa was obtained from freshwater oreochromis mossambicus /9,9x10 spermatozoa ml/ than seawater O. mossambicus /4,6x10 spermatozoa ml/. The mean osmolality of the urine of freshwater fish /78,5 mosmol kg/ was significantny different that of seawater fish /304,8 mOsmol kg/ the mean lenght of the mid-piece of the spermatozoa together with the tail was more variable in freshwater O. mossambicus /8,80-0,23um/ than in seawater specimens /8,27+0,18/. Stripped sperm of freshwater O,. mossambicus was higly contaminated by urine wchich was a good activator of sperm motility in O. mossambicus held in both fresh and sea water. The osmolality for initiation of motility in freshwater Omossambicus spermatozoawas from 0 to 1022 mOsmol kg. The optimum osmolality for motility was from 70 70 to 333 mOsmolkg, for freshwater fish. In freshwater O. mosambicus spermatozoa the presence of 20 mM CaCl increased the permisive osmolality of NaCl from 184

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GL - Rybářství

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

1999

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Fish Biology

ISSN

1095-8649

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

55

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

1344-1358

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—