Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Linhart A"'
Publikováno v:
Aquatic Living Resources. 21:207-212
The effects of osmolality and accidental urine contamination on spermatozoa velocity and motility were studied, combined with an examination of the biological characteristics of stripped and testicular sperm. Analysis of Northern pike sperm showed hi
Publikováno v:
Aquatic Living Resources. 21:75-80
Eighteen spermiating males were randomly selected from a hatchery-reared stock and electronically tagged to record changes in their sperm quality parameters (spermatozoa morphology, ultrastructure and motility, ionic composition and osmolality of the
Publikováno v:
Aquatic Living Resources. 16:450-456
Cette etude resume l'optimisation des techniques pour la fecondation artificielle chez la carpe, y compris les ameliorations des solutions d'activation, du processus d'insemination, et d'elimination de la viscosite des oeufs. Pour obtenir de bons tau
Autor:
Ludĕk Šĕtch, Roland Billard, Jean Pear Audebert, Marek Rodina, Jan Švarc, Jean Grecu, Otomar Linhart
Publikováno v:
Aquatic Living Resources. 15:139-144
The European catfish Silurus glanis has been cultivated in extensive ponds in central and Eastern Europe in association with carps for more than 100 years. The total production of S. glanis in aquaculture from ten European countries (Austria, Bulgari
Autor:
Boris Gomelsky, Anna E. Hiott, Jacky Cosson, Marek Rodina, David Gela, William L. Shelton, Steve D. Mims, Otomar Linhart
Publikováno v:
Aquatic Living Resources. 13:455-460
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– ethylamide , at three different doses to stimulate spermiation in paddlefish ( Polyodon s
Publikováno v:
Aquatic Living Resources. 11:341-345
Two experiments were developed in France to assess whether growth and processing traits differ for males and females in the European catfish, Silurus glanis. In the first experiment, fish were raised from 5 to 200 g in a pond for 7 months. A signific
Publikováno v:
Aquatic Living Resources. 9:229-235
La production aquacole de Siluroidei en Europe concerne le silure glane (Silurus glanis) , indigene, et des especes introduites assez recemment, comme le silure africain (Clarias gariepinus ) ou les poissons-chats americains tels que Ictalurus puncta
Autor:
Otornar Linhart, Roland Billard
Publikováno v:
Aquatic Living Resources. 8:317-322
Survival of Silurus glanis ovulated oocytes (ova) measured by the capacity of normal development i.e. percentage of normal and abnormal hatched larvae after in vivo and in vitro storage and exposure to sperm activating or immobilizing solutions and u
Publikováno v:
Aquatic Living Resources. 7:93-98
The process of sperm penetration into the egg of the European catfish Silurus glanis L. was investigated by scanning and transmission electron microscopy. Unfertilized ovum membrane under the internal micropylar aperture shows a critical depression w
Publikováno v:
Aquatic Living Resources. 4:139-145
Cold shocks and hydrostatic pressure shocks, respectively, were applied for the induction of both triploidy and tetraploidy in the common carp. Cold shocks of 0-2 °C, lasting 40 minutes and starting 2–5 minutes after the activation of gametes and