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Altered microrna expression profiles in bovine fetuses with an assisted reproduction-induced congenital overgrowth syndrome
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Assisted reproductive technologies (ART) refer to a series of fertility treatments used to conceive offspring. ART is used worldwide in humans for ...
Interaction of metsulfuron and nitrogen fertilizer in Tall Fescue forage systems
(University of Missouri--Columbia, 2022)
Tall Fescue (Schedonorus arundinaceus) is an introduced cool-season bunch grass that is a vital component of forage systems that support beef cattle production in Missouri and much of the eastern United States. This ...
Genetic and nutritional effects on reproduction in lactating dairy cows
(University of Missouri--Columbia, 2020)
Good reproductive performance is a prerequisite for profitable pasture-based seasonal calving systems of milk production. The objective of this dissertation was to elucidate the physiological mechanisms contributing to ...
Characterization of interleukin-1 beta 2, a novel interleukin-1 expressed by the early pig conceptus during establishment of pregnancy
(University of Missouri--Columbia, 2014)
It is essential that the early mammalian embryo attaches to the uterus or implants to survive. Most embryonic mortality is associated with complications during this process resulting in a loss of 25-60% of embryos or ...
Methods to improve growth efficiency in beef cattle
(University of Missouri--Columbia, 2015)
Genetics, nutrition and animal management each have integral roles in maximizing growth efficiency of domestic livestock. Residual feed intake (RFI) is an accurate method of distinguishing between feed efficient and ...
Extracellular vesicles, lipids, and lipoproteins in early pregnant sheep
(University of Missouri--Columbia, 2021)
In sheep, pregnancy establishment encompasses conceptus elongation, implantation, and placentation. These events are regulated by factors present within the uterine luminal fluid (ULF) from the endometrial epithelium and ...
Conceptus interferon gamma is essential for pregnancy maintenance in the pig
(University of Missouri--Columbia, 2021)
Establishment and maintenance of pregnancy in the pig is a complex process that relies on adequate communication between the conceptus and maternal uterine endometrium. During the peri-implantation period, the conceptuses ...
Implications of ovarian and uterine maturity evaluated in replacement heifer candidates
(University of Missouri--Columbia, 2021)
Profitability across the reproductive lifetime of a cow depends on reproductive success in the first breeding season and requires heifers to attain puberty prior to this time. Pre-breeding evaluations may be used to determine ...
Investigation of methods and factors influencing mouse oocyte quality, in vitro fertilization and embryo development
(University of Missouri--Columbia, 2018)
Mice are one of the most commonly used rodent species as a model for biomedical research to better understand molecular, genetic, and cellular causes of human disease and disorders. The production of good quality oocytes ...
Systemic effects of mastitis in the dairy cow : identifying mechanisms underlying impaired lactation in non-inflamed glands
(University of Missouri--Columbia, 2020)
Efficient milk production is temporarily compromised during the inflammatory response to lipopolysaccharide (LPS). Generally, the most severe losses are localized to individual mammary glands with overt cases of mastitis. ...
Feedlot cattle response to rumen undegradable protein and diet fiber level of high concentrate diets
(University of Missouri--Columbia, 2013)
Studies were conducted to determine the effects of feeding rumen undegradable protein (RUP) on subsequent feedlot cattle performance. The first experiment was conducted to determine if growth rate and gain to feed ratio ...
Effects of the use of assisted reproduction and high caloric diet consumption on body weight and cardiovascular health of juvenile mouse offspring
(University of Missouri--Columbia, 2013)
Maternal obesity and the use of assisted reproductive technologies (ART) are two suboptimal developmental environments that can lead to offspring obesity and cardiovascular disease. We hypothesized that these environments ...
Determining pork fat quality of pigs fed 20% DGS as measured by three methods with a standard industry marketing strategy
(University of Missouri--Columbia, 2013)
Fat quality is important in meat products as it can influence further processing characteristics and pork export potential. The use of non-traditional fat sources such as dried distillers grain with solubles (DDGS) changes ...
Development of a pregnancy associated glycoprotein assay to detect late embryonic mortality in cattle
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Embryonic mortality (EM) decreases profitability of a beef or dairy operation because of the impact that it is has on delaying the time of conception ...
Transcriptional profiling to improve porcine preimplantation embryo development in vitro
(University of Missouri--Columbia, 2014)
Culture environments can have profound impacts on the developmental program of the preimplantation embryo. Even though significant improvements have been made to embryo culture environments they are still sub-optimal to ...
Analysis of transcript abundance of uterine genes after application of bovine pregnancy associated glycoproteins to endometrial explants
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Pregnancy-associated glycoproteins (PAGs) belong to the aspartic protease family and are expressed exclusively by trophoblasts of even-toed ungulates. ...
The effects of aging and fsh on the epigenome of the mouse oocyte
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] With aging, females experience a natural decline in their reproductive success, partly due to a decline in the quality of the oocyte (ovum/egg). In ...
GGTA-1 targeting efficiency with a xenograft transgene
(University of Missouri--Columbia, 2012)
Gene targeting by homologous recombination was utilized to target the GGTA-1 locus. Two independent enrichment strategies were evaluated to determine if targeting efficiencies at the GGTA-1 locus could be improved. The ...
Modeling EAA requirement and developing low fishmeal diet for yellow perch
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Overall, my dissertation research sought to enhance production of yellow perch by developing a low cost, complete diet for juvenile yellow perch by ...
Improvement in stored forage utilization during feeding
(University of Missouri--Columbia, 2013)
Three experiments investigated methods to reduce forage waste during stored forage feeding using large round bale feeders (LRBF). In the first experiment, cone and sheeted LRBF reduced (P < 0.05) fescue hay waste 54 and ...