نتایج جستجو برای: growth and survival
تعداد نتایج: 16967108 فیلتر نتایج به سال:
variation in growth, feed utilization and survival was assessed in sturgeon fingerlings of beluga fed different dietary lipid levels. all diets were iso-nitrogenous (protein = 45%) comprising 3.4-3.7 kcal digestible energy g-1. triplicate groups of 35 fingerling beluga with a mean initial wet weight of 2.14 ± 0.07 g (± sd) were fed with four experimental diets containing 6.7, 10.5, 14 and 17% c...
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...
The use of selected bacteria to improve growth parameters and the microbial population in the host is one of the new ideas carried out for manipulating the bacterial population in aquatic organisms. These bacteria also consumed in the diets of farmed fish to optimize the balance of the microbial population of the gastrointestinal tract and they have a great effect on the growth and survival pro...
مطالعات قبلی بازار بیمه را به صورت کلی در نظر می گرفتند اما در این مطالعه صنعت بیمه به عنوان متغیر مستفل به بیمه های زندگی و غیر زندگی شکسته شده و هم چنین بیمه های زندگی به رشته های مختلف بیمه ای که در بازار بیمه ایران سهم قابل توجهی دارند تقسیم میشود. با استفاده از روشهای اقتصاد سنجی داده های برای دوره های 48-89 از مراکز ملی داده جمع آوری شد سپس با تخمین مدل خود بازگشتی برداری همراه با تعدادی ...
The objective of this project is to compare growth and survival rate in Chinese carps reared under traditional culture conditions versus those reared in ponds treated with slurry (anaerobic fermented of cow manure). This experiment was conducted using two treatments one treatment using slurry and the other using cow manure plus chemical fertilizer as the control with three replicates for each....
The purpose of this study was to elucidate some factors affecting the growth of Salmonella typhimurium. These factors included Carum copticum essential oil (0%, 0.015%, 0.03% and 0.06%), temperature (25 ˚C and 35 ˚C), pH (5, 6 and 7) and inoculum size (103 and 105 CFU mL-1). Brain heart infusion broth was used as the growth medium. There...
Growth in animals is controlled by genetic, environmental, and nutritional factors, including external factors (temperature, pressure, salinity, and light) in the evolution of cold-blooded animals. In this study, the effects of three different light treatments on the growth and survival rates of guppy larvae (Poecilia reticulata) were investigated. The larvae of this species with an average ini...
The present study aimed to determine the effects of iron nanoparticles (Fe-NPS) on growth performance, survival rate, liver histopathology and some blood and immune parameters of stellate sturgeon (Acipenser stellatus) juvenile. A total of 144 fish (175-195 g) were fed diets containing graded levels of Fe-NPs (0, 25, 50 and 100 mg kg -1 diet) for 8 weeks. Based on results, no significant differ...
Background and Objective: Due to progressive increase in the number of cases of cancer, there is a need to develop anti- tumor compounds. Statins have a variety of different effects on proliferation, migration and survival of cells and have been suggested as proper candidates for the inhibition of this disease. The aim of this study was to determine cytotoxicity effects of Atorvastatin with var...
Bacillus spp. are Gram-positive spore-forming bacteria used commercially as probiotics in the larviculture of fish. Bacillus spp. can act positively on cultured organisms by enhancing their survival and growth, stimulating their digestive and immune systems, and improving water quality. In this present study, grass carp larvae were fed on Artemia urmiana, Artemia fransiscana and Artemia parthen...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید