the purpose of this research was to design a semi-industrial culture medium to obtain the maximum biomass production from bacterium bacillus subtilis utb96. in the first step, in order to reduce the cost of culture medium components, commercial products and industrial by products including, sugar beet molasses, sugar cane molasses, potato waste water and milk serum as carbon sources and corn st...

review and goals: the ajowan(carum copticum) is a medicinal plants from apiaceae family that seeds contains 2-4% of volatile oil. 9-17 of chemical composition of ajowan essential oil have been reported(2), it have antibacterial and antioxidant activity of it caused to preserve the food materials(1). the application of chemical fertilizer leads to environmental pollution and ecological disaster ...

Eight crossbred (75% Holstein Friesian) cows in mid-lactation were randomly assigned to a switchback design with a 2x2 factorial arrangement to evaluate two nonstructural carbohydrate (NSC) sources (corn meal and cassava chips) with different rumen degradability and used at two levels of NSC (55 vs. 75%) with protein source (supplied by urea in the concentrate mix). The treatments were 1) Low d...

in order to evaluate the efficiency of inoculation of chickpea seeds with mesorhizobium and application of nitrogen and zinc on yield and yield components of rainfed chickpea an experiment was carried out in research station of shirvan-chardavel, ilam. the experiment was conducted in randomized complete block design (rcbd) with six treatments including mesorhizobium inoculation, nitrogen (40 kg...

In Australia, the main interest in urea. feeding to ruminants is the possibility of using this substance as a protein supplement for roughages so high in fibre and low in protein that they constitute sub-maintenance rations for animals grazing them. Several workers have shown that the loss of weight of ruminants fed such roughages can be prevented, or reduced, by adding a supplement of urea and...