The microbial profiles and activities of microbes in the digesta from chickens on diets containing Bogong or Canobolas with or without inclusion of microbial enzymes were investigated on the 384 day-old male Ross 308 broiler chickens. There was a reduction in population of C. perfringens (P < 0.01) of the ileum as a result of interaction between cultivar and xylanase. On the other hand, in the ...

b a ckground: microbes particularly bacteria presenting in the gut of haematophagous insects may have an important role in the epidemiology of human infectious disease. m e t hods: the microbial flora of gut and surrounding environmental of a laboratory strain of phlebotomus papatasi , the main vector of zoonotic cutaneous leishmaniasis (zcl) in the old world, was investigated. biochemical reac...

background and objectives: this study is the first research on the physiochemical characteristics, microbial population and microstructure of poosti cheese over 90-days of ripening. the main difference between poosti cheese and other types of traditional cheese is the skin, which is used for its storage. materials and methods: physicochemical characteristics including moisture, salt, ph, acidit...

rumen is a persistent and specific ecosystem consists of bacteria, protozoa and fungus where feed fermentation takes place in it. produced hydrogen in rumen can be used in the synthesis of the volatile fatty acids and the microbial protein and its excess would be eliminated through the production of methane by methanogenesis. nutritionists have tried to find ways to decrease loss and energy and...

microbial activity and spoilage of chicken meat from the market in mashhad, iran, stored in air at 0, 4, 10 and 15°c was assessed. microbial spoilage population, total volatilebase nitrogen (tvb-n), ph and organoleptic changes were determined. based on the results of sensory analysis, shelf-life of chicken meat stored at 0, 4, 10 and 15°c was 72, 120, 220 and 320 h, respectively. tvb-n that ser...

This paper describes a stochastic implementation of Austin et al.’s (1999) model of the spread of antibiotic resistance in a population of fixed size under varying conditions of antibiotic use. The population is divided into sub-groups: individuals colonized by commensal bacteria and an uncolonized group. The colonized group is further divided according to whether the commensal bacteria are sen...

Microbial growth curves are used to study differential effects of media, genetics, and stress on microbial population growth. Consequently, many modeling frameworks exist to capture microbial population growth measurements. However, current models are designed to quantify growth under conditions for which growth has a specific functional form. Extensions to these models are required to quantify...

BACKGROUND Microbial communities in floral nectar have been shown to be characterized by low levels of species diversity, yet little is known about among-plant population variation in microbial community composition. METHODOLOGY/PRINCIPAL FINDINGS We investigated the microbial community structure (yeasts and bacteria) in floral nectar of ten fragmented populations of the bee-pollinated forest...

The study focused on variable kinetics for substrate utilization, primarily addressing the following issue: Is variable process kinetics observed under different operating conditions and culture history (sludge ages), the result of changes inflicted on the metabolic machinery of the same microbial culture? Or, is this the result of a different microbial population selected under different opera...

background: today, in an attempt to reduce the human exposure to synthetic compounds such as chemical preservatives, some studies aimed at the replacement of artificial preservatives with natural ingredients with natural protective effects. methods: in the present study the microbial inhibition effect of saturejaba chtiarica essential oil in three different concentrations (0.1, 0.05, and 0.025%...