testosterone level was determined in six different populations of iran using saliva steroid assay. significant difference was observed in morning and afternoon testosterone level of the same individual (p>0.00l) significant difference was also noticed among different regions studied (p>0.00 1). comparisons between alcoholics and nonalcoholic as well as smokers and nonsmokers showed significant ...

To utilize the plant nutrients efficiently, rumen microbes play a great role in livestock, acting as source of energy. Like other ruminants, yak harbours different microorganisms that are responsible for bioconversion into energy animals. The samples liquor were collected from (Bos grunniens) rumen. specific media was made to culture and isolated pure with serial dilution. colony identified hel...

The effect of site of supplementation of a mixture of two crude preparations (Enzyme C and Enzyme X) of exogenous polysaccharide-degrading enzymes (EPDE) was studied in vivo using four ruminally and duodenally cannulated heifers (Exp. 1). The treatments were as follows: control (no EPDE), EPDE supplied through the diet (EF, 47.0 g/d), and EPDE infused continuously into the abomasum (EA, 41.6 g/...

Lignocellulose, the main component of a plant cell wall, is potential renewable bioenergy source. It composed cellulose, hemicellulose, and lignin structures. Cellulose linear polysaccharide that hydrolyzed chemically or enzymatically by cellulase. The addition lignocellulosic biomass, such as wheat bran coffee pulp, into fermentation culture, induces production cellulases. accounts for 20% enz...

background and objectives: numerous procedures in biology and medicine require the counting of cells. direct enumer- ation of colony forming units (cfus) is time-consuming and dreary accurate cell counting on plates with high numbers of cfus is error prone. in this study we report a new indirect cell counting method that was developed based on the use of redsafe fluorometric assay. the usefulne...