Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"bone ash"”.
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The Effect of Dietary Phytic Acid Concentration and Phytase Supplementation on Performance, Bone Ash, and Intestinal Health of Broilers Vaccinated With a Live Coccidial Oocyst Vaccine
… and mortality were measured as well as tibia ash (experiment 2) and indicators of small intestinal health including morphology, apparent ileal amino acid digestibility (IAAD), and pH (experiment 2). The results presented here indicated that giving broilers vaccinated against coccidiosis a …
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Effects of dietary enzyme supplementation on performance, bone ash, small intestinal morphology, and apparent ileal amino acid digestibility of broilers exposed to a live coccidia oocyst vaccine
… improved (P ≤ 0.05) broiler performance and bone ash. Vaccination reduced (P ≤ 0.05) broiler performance in EXP 1 and 3, but increased (P ≤ 0.05) broiler performance in EXP 2. Xylanase and/or PHY supplementation tended to improve (P = 0.10) ileal amino acid digestibility (IAAD) in vaccinated …
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Effects of phytase and mycotoxin control strategies in nursery pig diets and determining finishing pig lysine requirements
… phytase on nursery pig growth performance and bone ash characteristics. Two experiments using a total of 4,223 pigs were used to determine the optimal dietary standardized ileal digestible (SID) lysine (Lys) in duroc-based sired finishing pigs. Additionally, one experiment using 4,318 pigs was …
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Requirements for digestible calcium by growing pigs
… to 85 kg as indicated by growth performance and bone ash. In Exp. 1, the hypothesis was that the requirement to maximize growth performance of 50- to 85-kg pigs expressed as the STTD Ca:STTD P ratio, is less than 1.35:1. Fifteen corn-soybean meal based diets were formulated to contain 0.14, 0.27, …
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The role of boron alone or in combination with estrogen or PTH in the treatment of postmenopausal osteoporosis in ovariectomized rats
… with estrogen or parathyroid hormone (PTH) on bone quality and Ca, P, and Mg metabolism were investigated in 12- week-old rats. Treatment began on day 43 after ovariectomy and continued for 5 weeks. Treatments included 5 ppm (5 mg per kg diet) boron as boric acid, 17β estradiol (30 μg/kg/d, …
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Effect of restricted growth rate and elevated levels of minerals and vitamins on feet and leg characteristics, soundness scores and metacarpal and metatarsal characteristics of growing boars
… (35, 122, 209 and 290 d of age) and at necropsy. Bone samples were obtained at necropsy. Toe measurements increased over time with outside toes larger than inside toes. The hind outside toe was consistently larger than the other toes. Mineral-vitamin level had little effect on toe measurements, …
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Phytase and 1(alpha)-Hydroxycholecalciferol: Their Role in Improving Nutrient Bioavailability in Chickens and Pigs
… 1$\alpha$-OH D$\sb3$ had significantly higher bone ash values ($P0.10$) the specific activity of intestinal phytase in the duodenal mucosal tissue of chicks. Cecectomized chicks also were utilized to determine the role of microbially-produced phytase in the response to hydroxylated vitamin …
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Determination of calcium and phosphorus digestibility and relative calcium bioavailability in limestone sources from different countries and interactions with phytase
… AID values obtained in experiment 1) using bone ash as the response criterion. Ross 308 broiler males were fed 1 of 11 diets which consisted of a Ca deficient diet (0.3% Ca), and that diet supplemented with 0.15% or 0.30% Ca from either reagent grade Ca carbonate (CaCO3) or 1 of the 4 …
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Fire Assay, Cupellation and the Dissemination of Technical Knowledge in Post-Medieval Europe
… sites have identified three different recipes: bone ash, wood ash, and a mixture of bone ash and wood ash, which is the dominant recipe. These are all recorded in historical sources, but the analytical study coupled with the new experiments allows further insight into regional manufacturing …
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Efficacy of an Escherichia Coli Phytase for Improving Mineral Utilization in Pigs and Chickens
… responses in chick or pig growth performance and bone ash values to supplemental inorganic P (iP) were found in all standard-curve assays. In each assay, chicks fed P-deficient corn-soybean meal (SBM) diets supplemented with EcoPhos(TM) had greater (P < 0.01) growth performance and bone ash values …
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Digestibility of calcium and phosphorus and effects of microbial phytase in diets fed to growing pigs or gestating sows
… was to determine correlations between individual bones in the body and total bone ash to identify the bone that is most representative of total body bone ash in growing pigs. Pigs were fed diets containing 60 or 100% of the requirement for STTD Ca and STTD P. Results indicated that growth …
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Nutritional evaluation of conventional, high protein, reduced fiber, and reduced phosphorus corn co-products for poultry
… basis). Reduced P-DDGS also contained a larger ash and Ca content compared with conventional DDGS, and the TMEn was reduced (P < 0.05) to 2,840 kcal/kg from 3,428 kcal/kg DM. The standardized AA digestibility and digestible AA content were similar between RP-DDGS and conventional DDGS. Apparent …
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Digestibility of calcium and digestible calcium requirements in pigs
… of STTD Ca in the diets needed to maximize bone ash was 1.33 times the concentration of STTD P. Experiments 6 and 7 were conducted to determine the requirement for STTD Ca and STTD P by 25 to 50 kg pigs. A total of 20 diets were formulated to contain 0.13, 0.27, 0.42, 0.57, or 0.72% STTD Ca …
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A study of the comparative methods for the rare earth determination in bones and the rare earth content in human bones
… dealt briefly with the chemistry of the animal bone. The solubility of the cerium rich oxalates has been established. Three methods, the W.C. Robinson Method, the Calcium Sulfate Method, and the Oxalic Acid Method, for the chemical separation of the rare earth group from the other elements in …
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Evaluation of high-protein canola meals fed to growing chicks and weanling pigs
… KH2PO4, CMA, CMB, or SBM, weight gain and tibia ash (mg/tibia and %) were increased linearly (P < 0.05). Based on tibia ash %, bioavailabilities of P in CMA, CMB, conventional CM, and SBM relative to KH2PO4 were 15, 20, 13, and 42%, respectively. A linear increase (P < 0.05) in weight gain and …
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Technologies to Reduce Nutrient Excretion and Odor Production in Swine
… and Natuphos), growth performance, fibula ash, and Ca and P digestibilities were evaluated in 4 studies. The first 3 studies (N = 832 pigs) used graded level of the enzymes in P-deficient diets for nursery, grower and finisher pigs. Overall growth performance (ADG and Gain:Feed) and bone …
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Efficacy of exogenous phytase and protease enzymes on performance and gastrointestinal health in broiler chickens
… to Trt3. There was no difference in metatarsal bone ash mass, ash concentrations, densities and percentage Ca and P of birds fed PC or NC or diets supplemented with enzymes. While no differences were found for the ileum, phytase supplementation to the diet increased the duodenal villi length: …
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Effect of Form and Amount of Phosphorus and Phytase Supplementation on Phosphorus Utilization by Ruminants
… the end of the second metabolism trial 10th rib bones were collected from each lamb. Absorption of P was lowest (P<0.0001) for the low-P treatment, compared to the other treatments. There was no treatment effect on saliva P. Ruminal fluid P was higher (P<0.05) for lambs receiving P …
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Effects of dietary calcium to non-phytate phosphorus ratio and phytase supplementation on growth performance, digestibility, and bone characteristics of broiler chickens
… were maintained at 0.3%. Growth performance and bone ash of broilers fed 0.6% Ca were improved compared with those fed higher Ca concentrations. Tibia ash and tibia break force were reduced in birds fed Ca inclusions above 0.6%. Tibia reference force indentation measurements exhibited quadratic …
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Evaluation of the nutritional values of seven insect meals for inclusion in poultry diets
… BSFL relative to KH2PO4 using a chick bone ash bioassay. Nine dextrose-cornstarch-SBM based diets consisting of one P-deficient diet, and two diets containing increasing levels of KH2PO4, BSFL 1, BSFL 3, or partially-defatted BSFL were fed to chicks from 8 to 22 days of age. The …
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