نتایج جستجو برای: nitrogen utilization
تعداد نتایج: 236571 فیلتر نتایج به سال:
AIM This experiment was conducted to evaluate the effect of L-carnitine supplementation on growth performance, nutrient utilization and nitrogen balance in broilers fed with animal fat. MATERIALS AND METHODS 80 day-old Cobb commercial broiler chicks were randomly assigned into two dietary treatment groups with four replicates of ten chicks each. The diets were isonitrogenous and isocaloric. T...
I M P R O V I N G the utilization of urea nitrogen by ruminants has been the goal of many investigations. One approach, as exemplified by the study of Karr et al. (1965), has involved the addition of certain feedstuffs, which are thought to be sources of "rumen stimulatory" factors, to the diet with the hope of increasing microbial protein synthesis. Two examples of such feedstuffs are corn dis...
Limitation of different nutrients in Streptomyces coelicolor A3(2) triggers nutrient-stress responses, mediated by PhoP, GlnR, AfsR and other regulators, that are integrated at the molecular level and control secondary metabolite biosynthesis and differentiation. In addition, utilization of chitin or N-acetylglucosamine regulates secondary metabolite biosynthesis by a mechanism mediated by DasR...
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