Browsing 2021 Theses (MU) by Thesis Department "Animal sciences (MU)"
Now showing items 1-11 of 11
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Assessment of growth, performance, and end-product value when high oleic soybean oil is fed to market hogs, broiler chickens and laying hens
(University of Missouri--Columbia, 2021)For the past decade consumers have become more aware of the food they are eating and demand healthier animal products. The use of dietary oils has allowed the livestock industry to manipulate the fatty acid profiles of ... -
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 ... -
Effects of bovine pregnancy-associated glycoproteins on gene transcription in bovine endometrial explants
(University of Missouri--Columbia, 2021)Pregnancy-associated glycoproteins (PAGs) are a complex gene family, whose members are expressed by trophoblasts of ruminants and related species. In cattle, the PAGs accumulate at the trophoblast-uterine interface and ... -
Effects of essential oils on the performance, health, and feeding behavior of growing cattle
(University of Missouri--Columbia, 2021)Concerns and changes in policy related to use of antimicrobials in livestock has led to increased interest in using alternative feed additives such as essential oils (EO). Essential oils are plant secondary metabolites ... -
Efforts to identify large offspring syndrome during pregnancy through ultrasonography and maternal blood transcriptome analyses
(University of Missouri--Columbia, 2021)Large offspring syndrome (LOS) is a fetal overgrowth condition observed in some bovine offspring produced in vitro. The main phenotypes of LOS is large body size due to overgrowth during development which can result in ... -
Evaluation of the 7 and 7 synch protocol for control of the estrous cycle among beef cows prior to fixed-time artificial insemination with sex-sorted or conventional semen
(University of Missouri--Columbia, 2021)Experiment 1 was conducted to compare 7 and 7 Synch and the 7-day CO-Synch + controlled internal drug release (CIDR[copyright]) protocols prior to fixed-time artificial insemination (FTAI) of beef cows with conventional ... -
Factors affecting neonatal beef calf metabolism and vigor
(University of Missouri--Columbia, 2021)Two studies were conducted to investigate factors affecting neonatal beef calf metabolism and vigor. In the first study, effects of late gestational nutrient restriction on colostrum yield, neonatal vigor, and blood chemistry ... -
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 ... -
Molecular regulation of fetal brain development in pigs
(University of Missouri--Columbia, 2021)Two experiments were conducted to investigate molecular regulation that impacts fetal brain development in pigs. In the first experiment (Chapter 2), gene expression was profiled by RNA sequencing (RNA-seq) to examine the ... -
Paternal effects on pre-implantation embryo development in cattle
(University of Missouri--Columbia, 2021)Currently, sire fertility is measured using sire conception rate (SCR), which is not always indicative of embryo development. Since the majority of pregnancy loss in dairy cattle occurs during the early embryonic period, ... -
A reappraisal of mesenchymal-to-epithelial transition within the endometrium
(University of Missouri--Columbia, 2021)A controversial topic, mesenchymal-epithelial transition (MET) is thought to be a mechanism involved in regeneration of the uterine epithelial layer following pregnancy and menstruation. Little is known about this process ...