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Showing 1 to 15 of 15 for “"Precision-fed"”.
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Determination of relative metabolizable energy values for fats and oils via the slope-ratio precision-fed rooster assay
… experiments were conducted to determine if the precision-fed rooster assay could be combined with a slope-ratio type assay to generate useful information on the nitrogen-corrected true metabolizable energy (TMEn) content of fats and oils (lipids) for poultry. In Experiment 1, refined corn oil …
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Further evaluation of a slope-ratio precision-fed rooster assay for relative bioavailable energy values for fats and oils
Five slope-ratio precision-fed rooster assays and one limit-fed chick growth assay were conducted using different fats/oils at several increasing dietary levels to determine relative bioavailable energy values. In Experiment 1, roosters were precision-fed 0, 5, or 10% of five different fats as part …
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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
Five experiments were conducted to evaluate the precision-fed rooster assay for its ability to detect effects of supplemental carbohydrase enzymes on nitrogen-corrected true metabolizable energy (TMEn) of feed ingredients for poultry. Experiment 1 evaluated six combinations of various …
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Evaluation of several methods for detecting differences in amino acid digestibility among meat and bone meals
… were the pepsin nitrogen digestibility, the precision-fed cecectomized rooster AA digestibility, the precision-fed chick ileal AA digestibility, the standardized ileal amino acid chick digestibility, and the slope-ratio chick growth lysine bioavailability assays. Pepsin nitrogen digestibility …
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Phosphorus bioavailability and digestibility in soybean meal, spray dried plasma protein and meat and bone meal determined by different methods in poultry
… of assays in poultry. Experiment 1 evaluated the precision-fed rooster assay and determined the effects of increasing P intakes on excreta P retention values using corn and corn supplemented with increasing amounts of KH2PO4 to provide total P intakes of 51-351 mg. The results indicated that …
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Nutritional evaluation of conventional, high protein, reduced fiber, and reduced phosphorus corn co-products for poultry
… phosphorus-DDGS (RP-DDGS) were evaluated. The precision-fed rooster assay was utilized to measure TMEn and standardized amino acid (AA) digestibility. Corn fermented protein contained an average of 56% CP (DM basis), which was higher than 32% CP for conventional DDGS. The CFP also contained a …
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Evaluation of the nutritional values of seven insect meals for inclusion in poultry diets
… insect meals. The first six experiments were precision-fed rooster assays to determine TMEn in conventional roosters or amino acid digestibility in cecectomized roosters. The roosters were precision-fed 25 to 30 g of one of seven insect meals which included three different black soldier fly …
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Nutritional evaluation of canola meal produced from a new variety of canola seeds in broiler chickens and laying hens
Four precision-fed rooster assays, two broiler chicken experiments and one laying hen experiment were conducted. The four precision-fed rooster assays were used to determine the values of MEn using conventional roosters and ileal digestible amino acid values using cecectomized roosters. The first …
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Amino acid digestibility of various feedstuffs using different methods
… of determining amino acid digestibility are the precision-fed cecectomized rooster assay (PFR) and standardized ileal chick assay (SID). The PFR involves tube-feeding cecectomized adult roosters and excreta are then quantitatively collected for amino acids. For the SID, 3-week-old broiler chicks …
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Nutritional Evaluation Of New Reduced-Oligosaccharide Soybean Meal And Canola Meals Produced From New Varieties Of Canola Seeds For Poultry
… roosters. The second experiment was a precision-fed cecectomized rooster assay that was conducted to determine TMEn and amino acid digestibility. The third experiment was a standardized ileal amino acid digestibility (SIAAD) assay, in which broiler chicks were fed semi-purified diets …
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Nutritional evaluation of novel ethanol co-products for poultry
… Lys, 1.69% Thr, and 2.23% Val on a DM basis. Two precision-fed rooster assays with conventional and cecectomized roosters were conducted to determine TMEn and amino acid digestibility, respectively. The TMEn of Glutenol™ was determined to be 3256 kcal/kg DM. Standardized digestibility values for …
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Evaluation of in vitro methods to estimate digestibility of amino acids in the rumen undegraded protein fraction of feedstuffs
… digestibility estimates were obtained using the precision-fed cecectomized rooster assay. Rumen undegraded residues ( RUR) were generated, and intact feeds and RUR were analyzed for AA and crop-intubated to cecectomized roosters. Results of the rooster experiments indicate that AA digestibility …
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Phosphorus bioavailability and digestibility in canola meals determined by different methods
… cornstarch-dextrose-SBM basal diet was fed as Diet 1. Diets 2 and 3 had 0.05% or 0.10% P added from KH2PO4, respectively. The remaining diets had 12.5% or 25% TCM, CCM, or SBM added in place of cornstarch and dextrose. Bioavailability of P was estimated using the multiple-regression …
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Effect of particle size on nutritional value of soybean meal for poultry
… particle sizes. Experiments 1 and 2 used the precision-fed rooster assay to determine true metabolizable energy corrected to zero nitrogen retention (TMEn) and standardized amino acid digestibility in seven SBM samples that had a mean particle size of < 386, 466, 809, 1,174, 1,577, 2,026, or …
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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
… 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 intake, and feed efficiency, and 4) compare the raw and extruded RSH and WSH grains on total tract nutrient and …