搜索结果: 1-15 共查到“理学 Urea”相关记录32条 . 查询时间(0.051 秒)
Effects of Physical Form and Urea Treatment of Rice Straw on Rumen Fermentation, Microbial Protein Synthesis and Nutrient Digestibility in Dairy Steers
Rice Straw Urea Treatment Physical Forms Rumen Fermentation Microbial Protein Synthesis
2016/5/16
This study was designed to determine the effect of physical form and urea treatment of rice straw on rumen fermentation, microbial protein synthesis and nutrient digestibility. Four rumen-fistulated d...
Rumen Fermentation and Performance of Lactating Dairy Cows Affected by Physical Forms and Urea Treatment of Rice Straw
Rumen Fermentation Microbial Protein Synthesis Dairy Cows
2016/5/12
The aim of this study was to determine the effect of different physical forms and urea treatment of rice straw on feed intake, rumen fermentation, and milk production. Four, multiparous Holstein cross...
Determining of the Effect of Lysine:calorie Ratio on Growth Performance and Blood Urea Nitrogen of Growing Barrows and Gilts in Hot Season and Cool Season in a Commercial Environment
Blood Urea Nitrogen Growing Pigs Growth Performance Lysine:calorie Ratio
2016/5/11
Two experiments were conducted to determine an optimum Lys:calorie ratio (g of total dietary Lys/Mcal of DE) for growing barrows and gilts in cool and hot seasons in a commercial environment. In Exp. ...
Enhancing Mulberry Leaf Meal with Urea by Pelleting to Improve Rumen Fermentation in Cattle
Mulberry Leaf Pellet Microbial Population Microbial Protein Cellulolytic Bacteria
2016/5/9
Four, ruminally fistulated crossbred (Brahman×native) beef cattle with initial body weight of 420±15 kg were randomly assigned according to a 4×4 Latin square design. The dietary treatments were mulbe...
Replacing Concentrate with Wheat Straw Treated with Urea Molasses and Ensiled with Manure: Effects on Ruminal Characteristics, In situ Digestion Kinetics and Nitrogen Metabolism of Nili-Ravi Buffalo Bulls
Wheat Straw Cattle Manure Ruminal Characteristics Nitrogen Balance Buffalo Bulls
2016/5/6
To evaluate the effects of replacing concentrate with urea molasses treated fermented wheat straw (FWS) ensiled with cattle manure (CM) on ruminal characteristics, in situ digestion kinetics and nitro...
Comparative effects of urea, ammonium, and nitrate on phytoplankton abundance, community composition, and toxicity in hypereutrophic freshwaters
Comparative effects of urea ammonium nitrate
2014/4/4
Dissolved nitrogen (N) as urea ([NH2
]2CO), nitrate (NO{
3
), and ammonium (NHz
4
) was added to naturally
phosphorus (P)-rich lake water (up to 175 mg P L21
) to test the hypotheses that pollu...
Experimental evidence that pollution with urea can degrade water quality in phosphorus-rich lakes of the Northern Great Plains
pollution urea degrade water quality phosphorus-rich lakes the Northern Great Plains
2014/4/17
Urea is the most abundant nitrogen (N) fertilizer used on agricultural soils, yet its effects on adjacent aquatic ecosystems are largely unknown. Here 21-d, 3000-liter mesocosm experiments were conduc...
Synthesis of some pyridazine derivatives carrying urea, thiourea, and sulfonamide moieties and their antimicrobial activity
Pyridazine derivatives antibacterial activity antifungal activity
2010/10/14
Some pyridazine derivatives carrying urea, thiourea, and sulfonamide groups were synthesized and evaluated for their antimicrobial activity against gram-positive and gram-negative bacteria, and fungi ...
Determination of Urea in Serum Based on the Combination of an Enzymatic Reaction with Immobilized Urease and Ion Chromatographic Analysis
Determination Serum Based Combination Immobilized Urease Ion Chromatographic Analysis
2010/9/15
A quantitative method for the determination of urea in serum was studied. An ion chromatograph (IC) with a conductivity detector was used in this method, where the chromatograph was modified by placin...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity urea-grown diatom
2014/4/21
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...
The Optimum Methionine to Methionine Plus Cystine Ratio for Growing Pigs Determined Using Plasma Urea Nitrogen and Nitrogen Balance
Pigs Methionine Cystine Ratio Nitrogen Retention Plasma Urea Nitrogen
2016/4/27
The objective of this study was to determine the optimum ratio of methionine to methionine plus cystine for growing pigs. A nitrogen balance trial was conducted using a total of 21 barrows (Large Whit...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity a urea-grown diatom
2014/4/18
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...
摘要 本根据堆积模型推测LaCl3(urea)6的实际结构为[LaCl2(urea)6]^+Cl^-, 培养了这一化合物单晶, 进行了结构测定. 本文报道了有关结果.
摘要 Experimental determination of density, ultrasonic velocity and viscosity of two pyrimidine bases thymine and cytosine along with their respective nucleosides, thymidine and cytidine has been carrie...
Molecuar Dynamics Simulations of Urea and Thermal-induced Denaturation of S-peptide Analogue
2007/7/28
专著信息
书名
Molecuar Dynamics Simulations of Urea and Thermal-induced Denaturation of S-peptide Analogue
语种
英文
撰写或编译
作者
Zhiyong Zhang,Yongjin Zhu,Yunyu Shi
第一作者单位
出版社
Biophysical Chemistry, 89,145-162,200...