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Showing 1 to 20 of 81 for “"metabolizable energy"”.
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Evaluation of lysine and metabolizable energy in diets for broilers
… were conducted to evaluate the optimal levels of metabolizable energy and standardized ileal digestible lysine in broiler diets, focusing on performance and body composition. Two chapters were created based on the results of the trials. In the first chapter, a study was conducted to evaluate the …
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Methodology for evaluating the digestibility and metabolizable energy of poultry feedstuffs
Determining the energy values of feed ingredients for poultry is of great concern, especially since production efficiency is associated with profit margins. Therefore, accurate, precise, and reproducible energy values for feed ingredients are of the utmost importance in formulating an economical …
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Determination of relative metabolizable energy values for fats and oils via the slope-ratio precision-fed rooster assay
… information on the nitrogen-corrected true metabolizable energy (TMEn) content of fats and oils (lipids) for poultry. In Experiment 1, refined corn oil (RCO) was fed to both conventional (CONV) and cecectomized (CEC) roosters. Lipids were fed in ground corn diets to CONV roosters in …
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Determination of standardized amino acid digestibility, metabolizable energy and phosphorus bioavailability in spray-dried bovine plasma fed to poultry
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-12-01
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Impact of feed additives in swine diets and the effect of corn particle size on metabolizable energy in gestating sows
… effect of corn particle size on digestible and metabolizable energy in gestating sows. In experiment 1, 5 treatments consisting of a control, or the control with 2 levels of formic acid (0.36 % and 0.6%), or the control with a blended product containing 60% formic acid and 40% lignosulfonate …
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Distillers Dried Grains with Solubles: Determination of Metabolizable Energy Values Using Regression-Based Assays and their Correlation with Chemical Composition
… of in vivo assays to determine the metabolizable energy (ME) of DDGS has led to inconsistent values and limited its potential to use in broiler diets. Therefore, two experiments were conducted to characterize the content of nitrogen-corrected ME (MEn) in 11 DDGS sources obtained from …
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Development and validation of prediction equations for the metabolizable energy content of distillers dried grains with solubles from different sources for pigs
… and validation of equations to predict the energy concentration of DDGS and other ingredients, which is essential if users of equations are to have accurate predictions of energy value of feedstuffs.
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The Acute and Chronic Effects of a Cyclic Heat Stress on 24 to 28 Week Old Laying Hens on Performance, Egg Quality, Apparent Metabolizable Energy, and Blood Chemistry
… egg quality, nitrogen corrected apparent metabolizable energy, and blood chemistry in laying hens at acute and chronic time points. In total, 407 pure line laying hen pullets (18 wk) were sourced from Hy-Line International and housed individually for the duration of the experiment. Feed …
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THE EFFECTS OF FEED PROCESSING ON THE FORMATION OF STARCH DAMAGE IN SOFT AND HARD WHEAT AND ITS IMPACT ON STARCH DIGESTIBILITY AND APPARENT METABOLIZABLE ENERGY IN BROILER CHICKENS
… durum and hard wheat have the highest apparent metabolizable energy corrected to nitrogen (AMEn) in broiler chickens and the reasons for this is not known. It was hypothesized that starch damage is caused by hammer milling and pelleting but hard or durum wheat will have the highest levels due to …
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Evaluation of red and white sorghum as alternative carbohydrate sources and the effects of extrusion in monogastric nutrition through the determination of macronutrient digestibility, fecal microbiota, digestible and metabolizable energy content
… 2) compare the nitrogen-corrected true metabolizable energy (TMEn) and amino acid digestibility of the raw and extruded RSH and WSH grains using the precision-fed rooster assay, 3) compare the raw and extruded RSH and WSH grains in broiler chick diets by evaluating weight gain, feed …
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Evaluation of the precision-fed rooster assay for detecting effects of exogenous carbohydrases and adaptation diet on true metabolizable energy and cecal microbial ecology, short-chain fatty acid profile, and enzyme activity
… carbohydrase enzymes on nitrogen-corrected true metabolizable energy (TMEn) of feed ingredients for poultry. Experiment 1 evaluated six combinations of various α-galactosidase and xylanase levels on TMEn of a corn/soybean meal diet, while Experiment 2 evaluated two levels of a β-glucanase and …
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Impacto da densidade nutricional sobre o desempenho de poedeiras leves
… threonine), calcium, available phosphorus and metabolizable energy. The nutritional density affected the feed intake linearly and decreasing (P <0.0001). Egg production (P <0.0001), egg mass (P <0.0001) and conversions by mass (P <0.0001) and per dozen (P <0.0001) were influenced in a quadratic …
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The effect of exercise training on energy balance in the laboratory rat
… running and spontaneous wheel exercise on metabolizable energy intake, resting oxygen consumption, thermic effect of food and energy expenditure excluding the cost of exercise (the latter calculated from energy balance determinations) was investigated. The two training regimes had different …
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Characterization of raffinose synthase genes in soybean
… and stachyose in soybean seeds by elevating the metabolizable energy, sucrose, at the expense of raffinose and stachyose. This change in seed composition has the potential to increase the available metabolizable energy for non-ruminant animals as well as reduce the adverse side effects caused by …
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Responses of Two Strains of Broilers to Diets Varying in Essential Amino Acid Density and Energy Levels
… diets varying in overall amino acid levels and metabolizable energy levels were observed. Amino acid levels used were 80%, 90%, 100%, 110%, 120%, and 130% of Ross recommended minimum digestable levels of essential amino acids. Energy levels used were either below or above Ross recommended …
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The effect of exercise on the utilization of dietary energy by the laboratory rat
… various dietary regimes on the efficiency of energy storage, mobilization and utlization in the male Wistar rat. The experimental approach adopted was to combine the carrying out of energy balance studies using the body balance technique, feeding diets of determined metabolizable energy …
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Nitrogen balance and nutrient requirements of young Nellore bulls fed with static or oscillating crude protein levels, and feeding behavior, water intake and requirements of bulls with different residual feed intakes
… protein feeds. Regarding requirements, the net energy requirements for maintenance and metabolizable energy (ME) for maintenance were 77 and 122.75 Kcal/EBW0.75/d, respectively. The efficiency of ME utilization for maintenance was 62.7%. The equation obtained for net energy for gain (NEg) was: …
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The Effect of Various Feed Additives on Growth Performance, Nutrient Utilization, and Cecal Microbial Populations in Poultry
… the true digestibility of amino acids (AA) and metabolizable energy (MEn) were not negatively impacted. Each oligosaccharide was then evaluated at 4 or 8 g/kg in day-old chicks. Metabolizable energy and AA digestibility were generally decreased (P<0.05) at 21 days when an oligosaccharide was fed …
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Bioenergetics and nutrition of the pine vole (microtus pinetorum) in two Virginia apple orchards
… showed a seasonal cycle in daily maintenance energy requirements. Winter was energetically the most expensive season. Requirements during the summer season were the lowest of all seasons. There was no significant difference in the daily energy requirements between adult male or female voles …
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Nutritional and endocrine aspects of the lactation cycle of Holstein and Jersey cows: nutrient balances, response to supplemental dietary fat, rib composition and rib histology
… indicated dietary tallow addition increased energy intake, energy digestibility, and metabolizable energy, but it decreased partial efficiency of metabolizable energy utilization for lactation. Although digestibility of calcium and magnesium was unchanged, tallow-fed cows were in greater …
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