in vitro effects of steroid hormones on inducing gvbd in caspian salmon (salmo trutta caspius) oocytes
Authors
abstract
this study was inducted to elucidate the effect of different steroid hormones on simultaneous maturation of oocytes in caspian salmon. oocytes were incubated with 1, 10, 100 and 1000 ng/ml of testosterone, progesterone and 17 β stradiol, in vitro, for 40 hrs. gvbd was considered as hormones effectiveness. 17β estradiol was effective just in 1000 ng/ml and testosterone had no positive effect on maturatin procces. in this study progesterone was the most effective hormone in maturation.
similar resources
The effect of probiotic Bactocell (Pediococcus acidilactici) and iron on growth in Caspian Sea Salmon (Salmo trutta caspius)
In the present study the effect of Probiotic Pediococcus acidilactici (Bactocell) and Iron was examined on growth performance in Caspian Sea Brown trout (Salmo trutta caspius) fry. 2430 fish with primary weight 3.59 g were divided in 9 experimental groups each include 90 fish, with 3 replications and studied for 60 days. Fish in control group was feed using commercial food (Skretting, Co.) And...
full textCost factor analysis of Caspian salmon (Salmo trutta caspius Kessleri, 1877) fingerling production and release in Iran
Iran contributes to the stock enhancement of several economically valuable fish species, including the Caspian salmon, S. trutta caspius, by producing and releasing millions of fingerlings into the sea. This work was conducted to determine the production costs of the Caspian salmon fingerlings in the years 2002 and 2003. For this purpose, a questionnaire was prepared and filled in by an expert ...
full textSperm fertilization capacity of Caspian salmon, Salmo trutta caspius under ultraviolet irradiation
The optimum dose of ultraviolet (UV) irradiation to produce gynogenetic Caspian salmon, Salmo trutta caspius, with emphasis on the "Hertwig effect" and photoreactivation (PR) were investigated. The sperm of Caspian salmon was irradiated with UV at 2010 ? 200 ?w.cm-2 in different times including 0, 1, 3, 5, 8, 10, 15, 20, 25, 35 and 45 min and was allowed to fertilize normal ova; the fertilizati...
full textIonocyte Immunolocalization and the Effects of Ultraviolet Radiation on Their Abundance and Distribution in the Alenins of Caspian Sea Salmon, Salmo trutta caspius
OBJECTIVE On a global scale, stratospheric ozone depletion has caused an increase in UV-B radiation reaching the earth's surface. Ultraviolet radiation has long been suspected to be harmful to aquatic organisms. MATERIALS AND METHODS In order to study ionocyte localization (by Na(+)/K(+)-ATPase immunolocalization) and the effects of UV radiation on the ionocytes of skin and gills, the alevins...
full textCost factor analysis of Caspian salmon (Salmo trutta caspius Kessleri, 1877) fingerling production and release in Iran
Iran contributes to the stock enhancement of several economically valuable fish species, including the Caspian salmon, S. trutta caspius, by producing and releasing millions of fingerlings into the sea. This work was conducted to determine the production costs of the Caspian salmon fingerlings in the years 2002 and 2003. For this purpose, a questionnaire was prepared and filled in by an expert ...
full textEffects of Chlorella vulgaris on blood and immunological parameters of Caspian Sea salmon (Salmo trutta caspius) fry exposed to Viral Nervous Necrosis (VNN) virus
In the present study, the effects of Chlorella vulgaris on blood and immunological parameters of Caspian salmon (Salmo trutta caspius) before and after exposure to Viral Nervous Necrosis (VNN) virus were examined. In this regard, four treatments in triplicate were chosen. Groups included one control and 3treatments (T1, T2 and T3). Fish in control group, T1, T2 and T3 were fed diets supplement...
full textMy Resources
Save resource for easier access later
Journal title:
شیلاتجلد ۶۸، شماره ۴، صفحات ۶۳۱-۶۳۴
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023