نتایج جستجو برای: growth and survival
تعداد نتایج: 16967108 فیلتر نتایج به سال:
The aim of this study was to increase the production efficiency of reared Great sturgeon (Huso huso) in the larval stage (after hatching until absorption of the yolk sac) under the corresponding influence of photoperiod and light intensity. In this study, the larvae from the after hatching to the complete absorption of the yolk sac were exposed to four light intensities (0-10; 70-100; 200-170 a...
Background and Objectives: Before any development in scientific health activities, we have to observe its scope and compare it with health sector. Accordingly, the aim of this study was to determine the quality and quantity of the health-prioritized disciplines mentioned in the comprehensive health plan of Iran. Methods: This scientometric cross-sectional study was done during 2010-2017. The s...
This study was conducted with different levels (0, 0.25, 0.5,1,2 g) of Zingiber officinale powder per 100 g of common carp commercial diet. Feed was offered for 8 weeks by the post pelleting liquid spraying method. Results showed that there were significant differences in all growth parameters and body composition except in survival rate, Gain Weight Percent (GW%) ,SGR and NFE between treatment...
تأثیر عصاره تخلیص شده پلاکتهای خون بر روی رشد و بقاء اووسیت و فولیکول پرهآنترال موش سوری نژاد NMRI
Introduction: culture medium can be considered as one of important part in cell culturing and in vitro Folliculogenesis and in recent years lots of research have been focused on improving culture medium. Platelet Layset with high percent of growth factors and micro elements can be effective on oocytes growth and development. This study was done to evaluated whether Follicles and oocytes can sur...
This study was carried out to show the effects of herbal supplement of Sangrovit on the growth parameters, blood biochemical factors, survival and resistance to salinity of the Caspian kutum fry. Fish (1±0.003 g) were divided into four groups fed on diets containing sangrovit at different levels: 0 (control), 0.05, 0.1 and 0.15 % for 45 days. The results showed that there was a significa...
in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...
The application of nanotechnology in drug delivery and a variety of supplements is very impressive. In this regard, the use of this knowledge can be effective in the performance of medicinal plants in aquaculture. In the present study Aloe vera was extracted and its nanoparticles were produced. Three levels of Aloe vera nanoparticles in Siberian sturgeon (Acipenser baerii) were evaluated for th...
Enrichment of live foods by essential nutrients such as highly unsaturated fatty acids is an important tool for improvement of larval fish quality. In this study, nutritional effects of Artemia urmiana enriched by fish and plant oils on growth, survival rate, body compositions and resistance against thermal, salinity and hypoxic stresses in rainbow trout, Oncorhynchus mykiss were examined. Six ...
Low survival at early stages of life is of great concern for fish culturists. Considering the effects of herbal immunostimulants on innate immune response and growth improvement of aquatic animals, the impacts of a native herb of Hormozgan province named Zhumeria majdae extract on growth indices and immunology of catfish fingerlings Pangasianodon hypophthalmus with mean weight of 1.27±0.24 were...
abstract in order to investigation the effect of different levels of onion powdr (allium cepa) on growth performance, survival, fillet composition and hematological parameters of rainbow trout, a completly randomize design with six treatments and three replicates (15 fish in each replicate) were conducted for eight weeks. experimental dietary included 0, 0.5, 1, 2, 3 and 5% onion powder. all t...
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