نتایج جستجو برای: nutrient components

تعداد نتایج: 455191  

2016
Irem Sepil Pau Carazo Jennifer C. Perry Stuart Wigby

Genetic manipulations in nutrient-sensing pathways are known to both extend lifespan and modify responses to environmental stressors (e.g., starvation, oxidative and thermal stresses), suggesting that similar mechanisms regulate lifespan and stress resistance. However, despite being a key factor reducing female lifespan and affecting female fitness, male-induced harm has rarely been considered ...

Journal: :Ecology 2010
Colleen M Iversen Scott D Bridgham Laurie E Kellogg

Nitrogen (N) is the primary growth-limiting nutrient in many terrestrial ecosystems, and therefore plant production per unit N taken up (i.e., N use efficiency, NUE) is a fundamentally important component of ecosystem function. Nitrogen use efficiency comprises two components: N productivity (A(N), plant production per peak biomass N content) and the mean residence time of N in plant biomass (M...

Journal: :آب و خاک 0
محمود محمدی محمد جعفر ملکوتی کاظم خاوازی فرهاد رجالی محمد حسین داوودی

introduction: use of unbalanced chemical fertilizers especially p, having low absorption efficiency and low solubility compounds with soil components, has resulted in the production and use of bio-fertilizers (17, 23 and 29). bio-fertilizer is a preservative material consisting of one or several specific beneficial micro-organisms or their metabolic products used to supply plant nutrients and d...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Journal: :Global change biology 2015
Adrien C Finzi Rose Z Abramoff Kimberly S Spiller Edward R Brzostek Bridget A Darby Mark A Kramer Richard P Phillips

While there is an emerging view that roots and their associated microbes actively alter resource availability and soil organic matter (SOM) decomposition, the ecosystem consequences of such rhizosphere effects have rarely been quantified. Using a meta-analysis, we show that multiple indices of microbially mediated C and nitrogen (N) cycling, including SOM decomposition, are significantly enhanc...

2013
Dipika Agrahar Murugkar Paridhi Gulati Chetan Gupta

Multi-nutrient mixes with different combinations of cereals, millets, pulses, soy protein isolate and dairy whitener were formulated as per the nutritional requirements of school-going children. Effect of malted finger-millet or sprouted green gram present in the mixes on the nutritional and functional properties were studied and compared with their un-sprouted counterparts. On sprouting the Wa...

2017
Le-Thuy T. Tran Philip J. Brewster Valliammai Chidambaram John F. Hurdle

This study presents a method laying the groundwork for systematically monitoring food quality and the healthfulness of consumers' point-of-sale grocery purchases. The method automates the process of identifying United States Department of Agriculture (USDA) Food Patterns Equivalent Database (FPED) components of grocery food items. The input to the process is the compact abbreviated descriptions...

Journal: :Journal of dairy science 1994
R G Dado G E Shook D R Mertens

Dietary requirements for NEL and absorbed true protein were summarized for marginal production of milk components because of genetic improvement through selection. Shelled corn and soybean meal were used to meet marginal nutrient requirements and were assigned variable concentrations of absorbed true protein, depending on rumen-available energy and protein. Mean ratios among national averages f...

2015
Gustavo A. Higuera Hugo Fernandes Tim W.G.M. Spitters Jeroen van de Peppel Nils Aufferman Roman Truckenmueller Maryana Escalante Reinout Stoop Johannes P van Leeuwen Jan de Boer Vinod Subramaniam Marcel Karperien Clemens van Blitterswijk Anton van Boxtel Lorenzo Moroni

This data article contains seven figures and two tables supporting the research article entitled: spatiotemporal proliferation of human stromal cells adjusts to nutrient availability and leads to stanniocalcin-1 expression in vitro and in vivo[1]. The data explain the culture of stromal cells in vitro in three culture systems: discs, scaffolds and scaffolds in a perfusion bioreactor system. Als...

2010
Velmurugu Ravindran

Feed represents the greatest single expenditure associated with poultry production. nutritional research in poultry has therefore centred on issues related to identifying barriers to effective digestion and utilization of nutrients, and on approaches for improving feed utilization. Poultry nutritionists have increasingly combined their expertise with that of specialists in other biological scie...

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