Browsing Naturwissenschaften, Mathematik und Informatik by Advisor "Hörstgen-Schwark, Gabriele Prof. Dr."
Now showing items 1-7 of 7
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Development of ovarian germline stem cells in Nile tilapia (Oreochromis niloticus) reared under different temperature regimes
(2017-02-14)Germ cells originate from progenitor cells, denominated as primordial germ cells (PGC). PGC are of extragonadal origin and migrate toward the gonad primordia where they proliferate and, in gonochoristic species, differentiate ... -
Quantitative and molecular genetic studies on temperature-dependent sex determination of Nile tilapia (<i>Oreochromis niloticus</i>)
(2012-06-13)Tilapia is one of the most important species group for aquaculture production. Particularly Nile tilapia (Oreochromis niloticus) amounts to over 80 % of the world tilapia production. All-male populations are favourable due ... -
Temperature Dependent Sex Determination In Zebrafish (Danio rerio)
(2012-02-23)Summary Despite zebrafish (Danio rerio) is an important model for understanding vertebrate development during the last decades, sex determination and differentiation are not ... -
Temperature dependent sex differentiation in rainbow trout (Oncorhynchus mykiss)
(2010-11-01)The aim of the project was the evaluation of an alternative to the usage of hormonal treatment in order to produce rainbow trout neo-males for an all female production by mating these ... -
Erfassung und Risikoanalyse von niedersächsischen Aquakulturbetrieben vor dem Hintergrund der Fischseuchengesetzgebung
(2010-07-20)From a global view no sector within the food producing chain has grown so fast as aquaculture production business during the past four decades. However this development can neither be ... -
CONTROL OF REPRODUCTION IN NILE TILAPIA (OREOCHROMIS NILOTICUS) BY MANIPULATION OF ENVIRONMENTAL FACTORS
(2010-06-11)The aim of the study was to determine which holding conditions are most propitious in inducing the greatest number of breeders to spawn within an interval of 5 days. The spawning frequency ... -
Selektionsexperimente zur Erhöhung des Männchenanteils bei Nilbuntbarschen (Oreochromis niloticus) mittels Temperaturbehandlung
(2007-01-02)Tilapia are one of the most important species in commercial aquaculture world wide. On the one hand this is due to their ability to utilize a broad variety of food sources. On the other ...