نتایج جستجو برای: a completely randomized design
تعداد نتایج: 13621025 فیلتر نتایج به سال:
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
the effect of dose and regimen of organic acids on micro-flora and morphology of small intestine were studied in a total of 300 male day old broiler chicks using completely randomized design. salkil had no significant effects on the number of villi per view field and percent of convoluted villi. salkil had a significant effect on the number of tongue, ridge shaped (p
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
the study was conducted to investigate the effect of humic acid on the germination properties of medicinal plants borago officinalis and cichorium intybus in a completely randomized design with five replications. experimental treatment comprised the following dosages 0, 15, and 30 g l-1. the results revealed that effect of humic acid on the germination properties of c. intybus was significant (p
abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...
the probiotic effects of two gram positive bacteria, bacillus subtilis and bacillus licheniformis, were examined on growth performance, body composition and survival rate of artemia urmiana. three diets containing 102 (t1), 104 (t2), 106 (t3) cfu of probiotics g feed-1 and a control diet (c) without probiotic were used through a completely randomized design (each with three replicates). the use...
an experiment was conducted on 240 one-day old ross 308 broiler chicks using a completely randomized design in a 2×3 factorial arrangement with two levels of nano-adjuvant (with and without) and three levels of dietary protein (low, medium and high) during a 42 d experimental period. the main effect of protein density on feed intake was significant during the starter and grower periods (p
to evaluate the effect of metarhizium anisopliae and trichoderma harzianum on root knot nematode (meloidogyne javanica) in tomato, experiments was performed under controlled as well as greenhouse conditions. volatile and non-volatile tests showed that there is no inhibitory effect against every one of each biocontrol agents. on the larval mortality and inhibition of egg hatching, a laboratory t...
The aim of this study was to evaluate the effects of copper (Cu) sulfate (0, 125 and 250 mg/kg), arginine (Arg) supplements (0, 0.1 and 0.2%) and glucosinolate content on performance and carcass traits in broiler chickens fed with canola meal based diet. During a three-week experimental period (22-42 d), 405 male broilers were used in completely randomized design with a 3 × 3 factorial experime...
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