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 15 of 15 for “"fecal microbiome"”.
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The Utility of Culture Independent Methods to Evaluate the Fecal Microbiome in Overweight Horses Fed Orchard Grass Hay
… efforts to evaluate metabolic variables and the fecal microbiome in adult horses fed grass hay. In the first study, eight Arabian geldings limit-fed an 18% vs. 12% non-structural carbohydrate (NSC) hays in a cross-over design during two 28-day periods were included to evaluate the influence of …
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Effects of potato fiber and soluble corn fiber on the fecal microbiome of dogs with implications to inflammation
… vivo characteristics (nutrient digestibility and fecal fermentation characteristics), and ability to change fecal microbiota concentrations. Previous research in our laboratory found that feeding graded concentrations of dietary PF to dogs elicited linear increases (P < 0.05) in fecal acetate, …
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Metagenomic Analysis of Antibiotic Resistance Genes in the Fecal Microbiome Following Therapeutic and Prophylactic Antibiotic Administration in Dairy Cows
… to stimulate the development and subsequent fecal dissemination of antibiotic resistance genes (ARGs) in bacteria. The objectives were to use metagenomic techniques to evaluate the effect of antibiotic treatment on ARG prevalence in the fecal microbiome of the dairy cow and to determine the …
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Shotgun metagenomic approach to the influence of industrialization and social behavior on fecal microbiomes
The microbiome is a complex, rapidly evolving field of study dedicated to understanding the multitudes of micro-organisms that we live with, and that engage in reciprocal interactions with our own biology for both ill and good. These collections of microbes are susceptible to numerous influences …
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Sources of Variation in the Microbiome of Pre-Weaned Dairy Calves
… and maternal influences on the neonatal calf gut microbiome. Microbiome samples were collected from dams (n = 6) and calves (n = 6) using sterile flocked swabs. The vaginal, oral, and fecal bacterial communities were examined from the dam and the fecal community of calves was examined from birth …
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Antibiotic resistance gene abundance in feces of calves fed pirlimycin-dosed whole milk
… antibiotic resistance genes (ARG) in the gut and fecal microbiome. Non-saleable, antibiotic-containing milk from cows treated with antibiotics (waste milk) is commonly fed to dairy calves but the effects of ingestion of antibiotics at an early age on the gut microbiome and the development of ARG …
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Addressing geometric abnormalities and algorithmic shortcomings in metagenomic analysis.
Our work aims to identify shortcomings in microbiome analysis methods, making maximal use of sequencing data output to accurately represent sample relationships in a microbiome dataset. We introduce LMdist, a dimensionality reduction method for adjusting pairwise distances to more accurately …
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Effects of Commercial Feed Additives on Growth Performance and Gut Microbiota of Nursery Pigs
… probiotic and ZnO on the growth performance and fecal microbiome of weaning pigs. Results indicated that the combination diet of peptides and ZnO can offer equivalent growth performance but at a lower cost as compared to the diet containing SDPP and ZnO. Gut microbiota analysis clearly showed …
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Phenotypic and microbial influences on dairy heifer fertility and calf gut microbial development
… has not been well examined is the reproductive microbiome. I hypothesized that the microbiome of the reproductive tract would influence heifer fertility and calf gut microbial development. The objectives of this dissertation were: 1) to examine differences in phenotypes related to reproductive …
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Indices of gut health and intestinal microbial ecology of the cat as affected by ingestion of select carbohydrates varying in fermentative capacity
… 1) to determine nutrient digestibility and fecal fermentative end-product outcome variables as affected by inclusion of select dietary fiber and fermentable carbohydrate sources, and 2) to determine the microbiome and metagenome of the feline gastrointestinal tract as they relate to fiber …
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Exploring metabolomics through NMR: from early life to aging
… term, formula-fed infants. By integrating fecal microbiome profiling (16S rRNA sequencing) with urinary and fecal 1H NMR metabolomics, this study investigates early postnatal metabolic and microbial trajectories under supplementation exposure. Results highlight strong maturation-related …
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Microbial relationships between breastfeeding mothers and infants and response to maternal probiotic intervention
… critical life stage for establishment of the gut microbiome. Perturbations to early microbial colonization have been associated with an increased risk for a number of chronic diseases in toddlerhood and childhood. Human milk (HM) contains a number of bioactive components that support microbial …
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The impact of early life dietary patterns on weight status, fecal microbiota and volatile fatty acid composition in 2-year-old children enrolled in the STRONG Kids 2 cohort
… human gut microbiota, studied by proxy via the fecal microbiota, influences development of a number of human disease states. Unfortunately, current literature is scant on the investigation of early life dietary patterns’ influence on fecal microbiota and volatile fatty acid (VFA) composition in …
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Further elucidating the effects of ruminal and hindgut acidosis on the ruminant animal
… of ruminal acidosis on rumen fermentation, rumen microbiome, and energy metabolism of cattle unadapted to a concentrate-based diet. Eleven ruminally cannulated steers (body weight = 352 kg ± 27) were blocked into 3 groups based on initial body weight. Prior to the start of the experiment, animals …
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A computational approach to understanding maternal influences on the development of ruminant neonates
… on the developmental dynamics of the early-life fecal microbiota and antibiotic resistome in neonatal lambs. During our initial study, the ewe-twin lamb model was employed across two lambing seasons (n = 78) to evaluate the impact of maternal colostral cells on neonatal performance and …