theaim of the current study was to assess effects of different levels of origanum vulgare (0, 250, 500, 750 and 1000 mg/l) on kinetics of gas production, some ruminal digestion and fermentation parameters, methane production and also to determine its potential in controlling rumen acidosis using in vitro method in four separate phases. in the first phase, the asymptote of gas production (a) and...

to evaluate the effects of planting date and plant density on morphological characteristics, including essential oil content of ajowan (trachyspermum ammi) a study was conducted during the years 2003 and 2004 at the experimental farm, faculty of agriculture, ferdowsi university of mashhad. treatments were laid out in a factorial form based on a complete randomized block design of three replicat...

heterocyclic systems are one of the most important classes of organic compounds present in nature or synthesized in laboratory. these compounds posses an array of biological activities and are employed in the treatment of commonly occurring diseases. keeping this in view, some new 2-amino-4,6-diarylpyrimidine from chalcones were synthesized. eight novel 2-amino-4,6-diarylpyrimidine derivatives ...

in this research, the effect of ph onthe performance of nanobentonite -chitosan system (as dry strength additives) in hardwood chemi-mechanicalpulp (cmp) was studied.for this purpose, 3 levels of ph(5.5, 7, 8.5) and 3 levels of chitosan (0.75, 1.25 and 2% - based on oven dried pulp) in constant level of 0.3 nanobentonite(based on oven dried pulp) were applied.the atomic force microscopy(afm) im...

in order to determine the best traits related to indirect increasing of grain yield, five wheat genotypes (zagros, tajan, durum cul., kohdasht and n-81-18 line) were evaluated by using randomized complete block design (rcbd) with 4 replications in research field of gorgan university of agricultural sciences and natural recourses. the studied traits included leaf area index (lai), crop growth ra...

to evaluate effected of supplemental irrigation and seed priming on yield and some quantity and quality characteristics of  vetch (vicia dasycarpa) rainfed maragheh cultivar, an experiment was carried out at the research farm of faculty agriculture of urmia university, west azarbaijan province, iran, during 2011. the experimental design was split-plot, laid out in randomized complete block with...

plant analysis is successfully used in monitoring nutritional status, recommending fertilizer rates and types, and maximizing fertilizer efficiency in sugar beet. diagnosis and recommendation integrated system (dris) is a comprehensive approach which does not have limitations of the critical value approach (cva) and sufficiency range approach (sra). over- dose application of fertilizer increase...

the objective followed in this study was to determine the amen equivalency of multienzyme natuzyme-p. one hundred and sixty male ross 308 broiler chicks were made use of in the experimentations. graded levels of amen, 2600, 2750, 2900, plus 3050 kcal/kg in the starter, and 2700, 2850, 3000, plus 3150 kcal/kg of the diet in the grower periods were used throughout the study. all the nutrients oth...

recently, it has been shown that a number of hydroxypyridinones such as 1,2-dimethyl-3-hydroxypyridin-4-one (l1) are useful for the treatment of iron overload in place of desferrioxamine in thalassaemic patients. in this study, the intestinal absorption (i.a.) of l1 and one of its analogues namely 2-methy-3-hydroxypyridin-4-one (l2), which possesses a higher partition coefficient (kpart) than l...

the present experiment was conducted to determine metabolizable energy of pomegranate peel and pulp by adult cockerels. the pomegranate peel and pulp samples were gathered from three industries. this study had two experiments. each experiment was done in a completely randomized design with 4 treatments and 4 replicate (1 cockerel each). the cockerels fed conventional addition method (cam). the ...