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Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Performance, Dietary Energetics and Carcass Characteristics of Feedlot Lambs Fed Finishing Diets with Different Starch to Acid Detergent Fiber Ratios
Slow-release Urea Finishing Lambs Growth Performance Dietary Energetics Carcass
2016/12/28
Recent findings have shown that microbial nitrogen flow and digestible energy of diets are increased when urea is combined with a slow-release urea (SRU) in diets with a starch to acid detergent fibre...
Effects of Rice Straw Supplemented with Urea and Molasses on Intermediary Metabolism of Plasma Glucose and Leucine in Sheep
Intermediary Metabolism Molasses Rice Straw Sheep Stable Isotope Urea
2016/5/20
An isotope dilution method using [U-13C]glucose and [1-13C]leucine (Leu) was conducted to evaluate the effects of rice straw supplemented with urea and molasses (RSUM-diet) on plasma glucose and Leu t...
Improvement of Nutritive Value and In vitro Ruminal Fermentation of Leucaena Silage by Molasses and Urea Supplementation
Leucaena Silage Rumen Fermentation In vitro Gas Production Urea Molasses
2016/11/10
Leucaena silage was supplemented with different levels of molasses and urea to study its nutritive value and in vitro rumen fermentation efficiency. The ensiling study was randomly assigned according ...
Simple, selective, and sensitive measurement of urea in body fluids of mammals by reversed-phase ultra-fast liquid chromatography
urea derivatization liquid chromatography
2015/6/23
The presented
chromatographic procedure is especially suitable for preparation of reference sample sets, very accurate and
precise research purposes or rapid clinical diagnostic with smaller sampl...
Relationships between milk urea and production and fertility traits in Holstein dairy herds in the Czech Republic
dairy cow reproduction probability of conception
2015/6/8
The objective of this study was to determine how the concentration of milk urea (MU) and FPCM production affect reproduction in selected Holstein dairy herds in the Czech Republic. A retrospective, ob...
Reliability of results of milk urea analysis by various methods using artificial milk control samples
cow milk urea method of analysis result reliability recovery correlation
2015/6/5
The milk urea concentration (MUC) is a respected indicator of the health and nutrition status of dairy cows. It is in relation to their reproduction performance, longevity and technological milk indic...
Relationships between the results of various methods of urea analysis in native and enriched milk
cow milk urea analytical methods result reliability recovery correlation
2015/6/5
Milk urea concentration (MUC) is a suitable indicator of the health and nutrition state of dairy cows. MUC is in relation to their reproduction performance, longevity and technological milk indicators...
Effect of herd, parity, stage of lactation and milk yield on urea concentration in milk
dairy cow milk urea non-nutritional factors
2015/6/2
The objective of this study was to determine how non-nutritional factors such as herd, parity, days in milk, milk production, and milk components affect the concentration of milk urea. A retrospective...
Responses of milk urea nitrogen content to dietary crude protein level and degradability in lactatingHolsteindairy cows
protein level protein degradability milk urea N lactating cos
2015/6/2
Two experiments were conducted to investigate the effects of dietary crude protein level and degradability on milk urea nitrogen (MUN) content. In experiment 1, twelve multiparous lactating cows avera...
Effects of Supplementation of Mulberry (Morus alba) Foliage and Urea-rice Bran as Fermentable Energy and Protein Sources in Sheep Fed Urea-treated Rice Straw Based Diet
Fermentable Energy Fermentable Protein Feed Supplementation Sheep
2016/5/18
A digestibility study was conducted to evaluate the effects of supplementing mulberry foliage and urea rice-bran as a source of fermentable energy and protein to 12 sheep fed diets based on urea-treat...
Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Characteristics of Digestion, Microbial Protein Synthesis and Digestible Energy in Steers Fed Diets with Different Starch:ADF Ratios
Slow-release Urea Finishing Diets Steers Digestion Microbial Nitrogen
2016/5/16
As a result of the cost of grains, the replacement of grains by co-products (i.e. DDGS) in feedlot diets is a common practice. This change produces diets that contain a lower amount of starch and grea...
The Effect of Energy Supplementation on Intake and Utilisation Efficiency of Urea-treated Low-quality Roughage in Sheep II. Rumen Kinetics and Acetate Clearance Rate
Acetate Clearance Rate Glucogenic Potential Rumen Liquid Kinetics Substrate Cycle
2016/5/6
Inadequate supply of glucose or glucogenic substrates to the body tissues can affect metabolism of absorbed acetogenic metabolites from the gut and therefore, influence feed intake in ruminants. This ...
The Effect of Energy Supplementation on Intake and Utilisation Efficiency of Urea-treated Low-quality Roughage in Sheep I. Rumen Digestion and Feed Intake
Roughage Energy Supplementation Intake Glucogenic Potential Microbial Protein Purine Derivatives
2016/5/6
Inefficient rumen microbial fermentation is a major factor limiting intake of low quality roughage in ruminants. In this study, the effect of energy supplementation on rumen microbial fermentation, ab...
Effects of Polyurethane Coated Urea Supplement on In vitro Ruminal Fermentation, Ammonia Release Dynamics and Lactating Performance of Holstein Dairy Cows Fed a Steam-flaked Corn-based Diet
Polyurethane Coated Urea Rumen Fermentation Ruminal Ammonia Release Lactating Performance
2016/5/4
Three experiments were conducted to investigate the effects of polyurethane coated urea on in vitro ruminal fermentation, ammonia release dynamics and lactating performance of Holstein dairy cows fed ...
Comparative Effect of Cecal Ligation and Colostomy on Nitrogen Utilization in Chickens Fed Low Protein or Urea-Supplemented Low Protein Diets.
chicken nitrogen balance low protein diet urea cecal ligation colostomy
2009/7/31
A study was carried out to investigate nitrogen metabolism in response to cecal ligation and colostomy in chickens. We used colostomized plus ceca-ligated chickens fed a low protein diet or a low prot...