305 articles for “nitrogen”

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Research ArticleOpen accessIn the abstractEffects of Dietary Inclusion of Guar Meal Supplemented by β-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood CellsMohammad Ehsani, Mehran TorkiProblem statement: Using Guar Meal (GM) in poultry diets has being limited because of having β-mannan, one of the Nonstarch Polysaccharides (NSP). In this study we try evaluating effects of enzyme supplementation of GM-included diets on productive performance of laying hens. Approach: A total number of 144 Lohmann LSL-Lite hens were divided in 24 cages (n = 6). Based on … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 4 · 27 Dec 2010 · 8,496 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAdding Medicinal Herbs Including Garlic (Allium sativum) and Thyme (Thymus vulgaris) to Diet of Laying Hens and Evaluating Productive Performance and Egg Quality CharacteristicsR. Ghasemi, M. Zarei, M. TorkiProblem statement: In trying to finding phytogenic antibiotic-substitutes this study was done and effects of adding graded levels of Medicinal Herbs (MH) including garlic (Allium sativum) and thyme (Thymus vulgaris) to laying hens’ diet on productive performance investigated. Approach: A total number of 108 Lohmann LSL-Lite hens after production peak were randomly divided in 18 cages (n = 6). Three … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 18,511 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Review: Microbiological, Physicochemical and Health Impact of High Level of Biogenic Amines in Fish SauceMuhammad Zukhrufuz Zaman, A. S. Abdulamir, Fatimah Abu Bakar et al.Problem statement: Biogenic amines are basic nitrogenous compounds present in a wide variety of foods and beverages. Their formations were mainly due to the amino acids decarboxylase activity of certain microorganisms. Excessive intake of biogenic amines could induce many undesirable physiological effects determined by their psychoactive and vasoactive action. Fish sauce which is considered as a good source of dietary … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 8,915 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe NifX Protein is Involved in the Final Stages of FeMo-cofactor Transport to the MoFe ProteinSurobhi Lahiri, Byron Cole, Lakshmi Pulakat, Nara GaviniThe nitrogenase enzyme catalyzes the reduction of dinitrogen to ammonia and is composed of the Fe and MoFe proteins. The iron molybdenum cofactor (FeMo-co) of the MoFe protein is the site of active substrate reduction. The NifX protein has also been suggested to have a role in the FeMo-co synthesis, although its exact role is still open to investigation. We … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 2 · 30 Jun 2007 · 7,262 accessesView PDF Cite

Research ArticleOpen accessIn the abstractModeling Water Quality in RiversLiren Yu, N. N.B. SalvadorThis study reports a PC software, used in a Windows-based environment, which was developed based on the first order reaction of Biological Oxygen Demand (BOD) and a modified Streeter and Phelps equation, in order to simulate and determine the variations of Dissolved Oxygen (DO) and of the BOD along with the studied river reaches. The software considers many impacts of … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,858 accessesView PDF Cite