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 47 for “"Bos taurus"”.
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The type I IFN of Bos taurus
… annotation of the Type I IFN locus in Bos taurus, thereby providing an insight into the functional evolution of the Type IFN in ruminants. Data collected for the first aim indicate that female blastocysts do not transcribe a different set of IFNTs than males (p=0.54). However, …
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Charting the Evolutionary History of the Bos Taurus Genome
*This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation).
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Demographics and Transfer of Escherichia coli Within Bos taurus Populations
<p>In the United States, symptoms caused by pathogenic strains of <em>Escherichia coli</em> are on the rise. A major source of these pathogenic strains is the <em>E. coli</em> in the digestive tract of cattle. The purpose of this project was to determine if <em>E. coli</em> are transferred between …
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Strategies to improve fertility of Bos taurus beef females enrolled in estrous synchronization protocols
… (AI), as well as temperament on fertility of Bos taurus beef females exposed to ES protocols. Multiparous cows (n = 1,676) were enrolled to the 7-d CO-Synch+ Controlled internal drug releasing device (CIDR) protocol and cows expressing estrus were inseminated. Cows not expressing estrus …
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Imprinted Gene Expression and Phenotype of Bovine Concepti with Bos taurus and Bos indicus Genetics
… distinct subspecies of domesticated cattle, Bos taurus and Bos indicus, and their reciprocal crosses. Real time quantitative PCR was used to quantify expression of IGF2 promoterspecific transcripts, IGF2R, H19 and AIRN, in liver, brain, heart, cotyledon, skeletal muscle, kidney, lung and …
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An investigation into temperament, production, and their physical indicators in Bos taurus beef and Holstein dairy cattle
The objective of these research studies was to examine the relationships, in cattle, for productivity and temperament, temperament and physical indicators (attributes) and, productivity and physical indicators. Physical attributes examined were facial hair whorl characteristics, and cannon bone …
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Nutrient Restriction Effects on Ovulatory Follicle and Corpus Luteum Development and Progesterone Production of Bos taurus Cows
… corpus luteum (CL) development and function of Bos taurus cows enrolled in estrous synchronization. A total of 26 Angus cows were housed in a facility equipped with a Calan gate system for individual animal intake. Cows were stratified by body weight (BW), and randomly assigned one of two …
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Large offspring syndrome, a bovine model for the human loss-of-imprinting overgrowth syndrome Beckwith-Wiedemann
… known to be misregulated in BWS. To test this, Bos taurus indicus × Bos taurus taurus F1 hybrids were generated by artificial insemination (AI; control) or by ART. Seven of the 27 conceptuses in the ART group were in the > 97th percentile body weight when compared to controls. Further, other …
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Clinico-Chemical Parameters of Fetal Fluids and Maternal Blood in the Bovine Model: Effects of Genetics and Sex and Relationships with Feto-Placental Phenotype
… and amniotic fluids and maternal blood in a Bos taurus, Bos indicus bovine model to provide fundamental information that is lacking regarding (i) changes in clinico-chemical parameters of maternal blood in early and midgestation and their relationships with placental-embryo/fetal weights (ii) …
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CRISPR/CAS9 mediated gene editing for the improvement of beef and dairy cattle
… of beneficial mutations. In Angus beef cattle (Bos taurus), a mutation in the NHL-repeat containing 2 gene causes a heritable abnormality referred to as Developmental Duplications (DD). Calves homozygous for this mutation are affected with a broad range of neural tube defects and commonly …
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Sequence Analysis of PMEL17 as Candidate Gene for Causing Rat-Tail Syndrome in Cattle
… was previously mapped to an 8.7 cM region of Bos Taurus autosome (BTA) 5. Pmel17 is known to be involved in the expression of pigmentation and maps to the same region of BTA5 as the rat-tail locus. Cattle from a population segregating for the rat-tail syndrome were sequenced at Pmel17 in order …
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BIOINFORMATIC ANALYSIS OF A MAMMALIAN BIP GENE FOR INSERTION INTO GREEN ALGAE AND COMPARISON OF ITS POSSIBLE EFFECTS ON THE SYNTHESIS OF A MAMMALIAN ANTIBODY
… Mesocricetus auratus (golden hamster), Bos taurus (cow), Xenopus laevis (frog), and Spinacia oleracea (spinach). Moreover, these homologous proteins more likely have a common evolutionary origin.
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The Effects of Multispecies Grazing on Pasture Management and Utilization
… goats (Capra hircus L.) and Jersey heifers (Bos taurus L.) to determine the relationships between multiple grazing treatments and pasture utilization. The study was conducted for 60 days on the Western Kentucky University Farm in Bowling Green, KY. Cattle and goats have shown to differ in …
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Authentication of Species in Bison Products Using Molecular Methods
… meats, such as beef from domestic cattle (<em>Bos taurus</em>). DNA barcoding of the cytochrome <em>c </em>oxidase subunit 1 (CO1) gene is a commonly used method to test for meat species mislabeling. However, due to historical hybridization between the American bison and domestic cattle, …
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Cathepsin Z: Identifizierung und Charakterisierung einer neuen Cysteinpeptidase der Papainfamilie
… nicht nur beim Menschen, sondern auch bei Bos taurus, Rattus norvegicus und verschiedenen Nematoden wie z.B. Urechis caupo. CTSZ wird bei Maus und Mensch ubiquitär exprimiert, mit höchster Expression in den Organen Leber und Lunge. Die chromosomale Lokalisation des CTSZ-Gens ist - …
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Culicoides smulkiųjų mašalų (Diptera: Ceratopogonidae) mitybos analizė /
… mammal blood meal sources were mainly cattle (Bos taurus), humans (Homo sapiens), and domestic cat (Felis catus). Additionally, the found Culicoides ornithophilic species were C. segnis, C. kibunensis, C. festivipennis and C. pictipennis. Mammalophilic species were C. obsoletus and C. …
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A comparison of Aspen and Pine Communities in the Northern Black Hills
… deer (Odocoileus virginianus) and cattle (Bos taurus) were determined for each community in each study. Pine and aspen communities of one study area were sampled for soil and plant chemistry. Soil phosphate and potassium levels were higher in the aspen community, while soil nitrates were …
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Effects of Dietary Conjugated Linoleic Acid Supplementation on Bovine Oocyte Lipid Metabolism, Lipid Composition and Embryo Cryotolerance
… and responses may be different between Bos indicus and Bos taurus breeds of cattle. Therefore, a series of experiments were conducted to evaluate effects of dietary CLA supplementation of cows on (1) milk fat depression in lactating Holstein cows, (2) follicle and oocyte production and …
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Use of Molecular Methods to Authenticate Animal Species and Tissue in Bovine Liver Dietary Supplements
… real-time PCR targeting domestic cattle (<em>Bos taurus</em>), horse (<em>Equus caballus</em>), sheep (<em>Ovis aries</em>), and pork (<em>Sus scrofa</em>) was used to verify species. Samples that failed species identification with multiplex real-time PCR underwent DNA mini-barcoding. Overall, …
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