RSS 1.0Animal Sciences electronic theses and dissertations (MU)
The items in this collection are the theses and dissertations written by students of the Division of Animal Sciences. Some items may be viewed only by members of the University of Missouri System and/or University of Missouri-Columbia. Click on one of the browse buttons above for a complete listing of the works.
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Recent Submissions
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"We didn't realize the loss until it actually happened" : a phenomenological, dialogic analysis of sibling pairs' relational talk about moving apart
(University of Missouri--Columbia, 2016)Though research on family ties during the transition to adulthood has typically focused on parent-child relationships, scholars have begun to explore how this important transition impacts the relationship between siblings. ... -
Evaluation of exogenous plant based enzymes in a low-cost foodservice beef model
(University of Missouri--Columbia, 2016) -
Metabolic status of late gestation beef cows and neonatal calves
(University of Missouri--Columbia, 2016)Two studies were conducted to investigate the changes in beef cattle metabolic status over time. In the first study, the effects of grazing stockpiled tall fescue (STF) versus feeding tall fescue hay during late gestation ... -
Barriers and values of moral distress among critical care nurses
(University of Missouri--Columbia, 2016)This dissertation explores the presence of moral distress and effective interventions to lessen its impact on critical care nurses. Manuscript one was completed prior to entering the doctor of philosophy in nursing program ... -
Biological role of conceptus derived factors during early pregnancy in ruminants
(University of Missouri--Columbia, 2016)In cycling domestic animals, pregnancy loss during early gestation is a major cause of infertility. The majority of pregnancy loss during this time is due to errors in mitotic division early in development, or occurs later ... -
Efficacy of various wavelengths of light emitting diode illumination on efficiency and performance parameters of broilers
(University of Missouri--Columbia, 2016)Lighting is essential for broiler growth, maturation, and reproduction. Globally, broilers are reared under various production systems including outdoor enclosures that do not allow for extensive control over their ... -
Diet shifts provoke complex and variable changes in the metabolic networks of the ruminal microbiome
(University of Missouri--Columbia, 2016)Grazing mammals rely on their ruminal microbial symbionts to convert plant structural biomass into metabolites they can assimilate. To explore how this complex metabolic system adapts to the host animal's diet, we inferred ... -
Multivariate genome-wide association studies and genomic predictions in multiple breeds and crossbred animals
(University of Missouri--Columbia, 2016)The aim of the first research project is to design a commercialized genomic test that strongly predicts meat tenderness and other carcass traits in multiple breeds and crossbred cattle. We have identified single nucleotide ... -
Evaluation of the retail display life of ground beef stored in modified atmosphere packaging and modern lighting conditions
(University of Missouri--Columbia, 2016) -
Parameterized uncertainty model using a genetic algorithm with application to an electro-hydraulic valve control system.
(University of Missouri--Columbia, 2016)Uncertainties in the mechanical system severely increase the complexity of the system. Present the uncertainties can be parameterized by listing the coefficient from the transfer function. The attempt to reduce the ... -
Effect of pre-ovulatory follicle size on oocyte transcript abundance in beef cows
(University of Missouri--Columbia, 2016) -
Postpartum hormones and metabolites affecting fertility in Holstein and Jersey dairy cows
(University of Missouri--Columbia, 2016)Dairy cows have experienced major changes in productivity during the past 70 years. A selective pressure was applied to increase milk yield, but fertility declined. During early lactation, dairy cows are exposed to ... -
Nutritional intervention in the early growing broiler chick
(University of Missouri--Columbia, 2016)As the broiler chicken continues to grow faster and larger, the time to slaughter continually decreases. Broilers are commonly slaughtered at 5-8 weeks of age and so the post-hatch period has become a larger and more ... -
Selection for parasite resistance in Kiko x Boer goats
(University of Missouri--Columbia, 2015)In the United States, goat production has increased over the last three decades because of their economic value as efficient converters of low-quality forages in quality meat, milk, and hides for specialty markets. However, ... -
Modulation of inflammatory responses by Sutherlandia frutescens
(University of Missouri--Columbia, 2015)Sutherlandia frutescens (L.) R. Br (Lessertia frutescens) is a medicinal plant traditionally used in southern Africa. It has been used for patients suffering from numerous types of cancer, infectious diseases, and various ... -
Mu-synthesis controller design for temperature control of a solar steam gasifier with uncertainty modeling and robust analysis
(University of Missouri--Columbia, 2015)Gasifiers operate by inputting a carbon rich material, water, and heat into a reactor core to cause a chemical reaction to produce a desired chemical composition output. For this work, a unique hybrid allothermal/autothermal ... -
Strategies to improve stored forage use efficiency
(University of Missouri--Columbia, 2015) -
Timing of ovulation in gilts treated with different regiments of OvuGel(R) and Matrix(R)
(University of Missouri--Columbia, 2015)Previous research has shown that 85% of gilts treated with Matrix(R) will show heat (estrus) 4-9 d after last Matrix(R) feeding. Synchronization of estrus is important in knowing when to inseminate (breed). This window of ... -
Impacts of late gestational tall fescue forage systems on preweaning calves
(University of Missouri--Columbia, 2015)A 2 year experiment was conducted researching the impact of common lower Midwestern beef cattle winter forage systems on late gestation, spring-calving beef cows and their subsequent calves. We hypothesized that cows grazing ... -
Understudied chromosomes: an analysis of the canine mitochondrial genome and bovine Y chromosome
(University of Missouri--Columbia, 2015)Certain regions of the genome are more difficult to study than others due to intrinsic characteristics of the region. The mitochondrial genome is small with high copy number and therefore easy to sequence. The challenge ...