نتایج جستجو برای: fcr and survival ratio were 146
تعداد نتایج: 16907809 فیلتر نتایج به سال:
objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...
In this study the enrichment dietary effect with different crude protein levels (CP) and feed additives on growth, survival, conversion ratio (FCR), consumption (FC) total hemocyte count (THC) in juvenile white shrimp Litopenaeus vannamei were evaluated. The covered two bioassays: first one, juveniles daily fed for 45 days four experimental diets containing: (1) Control, commercial (35% CP); (2...
in this study, the effects of oxygen supplementation in different stocking densities of rainbow trout (oncorhynchus mykiss) on the specific growth rates (sgr), feed conversion ratios (fcr) and survival rates were investigated in a commercial-scale culture system. high density cultures were maintained in a total of nine (12 m3) flow-through systems supplemented with o2. initial stocking rates fo...
Selenium, a trace mineral complement is used as cofactor of antioxidant enzymes that protects fishes against environmental stress agents and enhances performance in fishes. In this study the different levels of organic and inorganic source of selenium were included in juvenile rainbow trout diet to evaluate feed conversion ratio (FCR), specific growth rate (SGR), weight gain percent (WG), cond...
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
critical thinking ability has an important role in education. accordingly, scholars around the world are searching for new ways for teaching and improving students critical thinking ability. in line with the studies in efl contexts supporting the positive relationship between critical thinking and writing performances, this study investigated the differential effects of halverson’s critical thi...
This study was conducted to evaluate the effects of different levels of Mentha piperita extract on growth factors, survival rate and body composition of Rutilus frisii kutum fry. For this purpose, four groups of fish with mean weight of 1.12± 0.14 g were raised for 56 days in plastic tanks (40 fish to each tank) and feeding with different levels of M. piperita with concentrations of 0, 1, 2.0 a...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
This study aimed to develop a suitable feeding program for the Asian sea bass, lates calcarifer fingerlings under supersaline condition by testing different feeding rates (FR) and feeding frequencies (FF). Three feeding rates namely; 1%, 2% and 4% and three feeding frequencies 1X, 2X and 4X were used in the study. Results showed that growth after 60 days parameters gave the highest values with ...
This study aims to analyze the effect of feed based on coconut husk waste fermented Neurospora sitophila growth red tilapia, and determine optimal dose waste. research was carried out in May – June 2021, at Aquaculture Laboratory Building IV, Faculty Fisheries Marine Sciences, Padjadjaran University Bandung, West Java45363 Indonesia. used a completely randomized design with four treatments repl...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید