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Urocortin as a measure of stress in livestock
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Stress is a fact of life for every living thing. In livestock species, stress can affect an animal's performance, thus leading to decreased profit for ...
Effects of heat stress on thermoregulation, reproduction and performance of different parity sows
(University of Missouri--Columbia, 2012)
Heat stress caused by high ambient temperatures causes seasonal infertility in sows, leading to decreased production and a loss in reproductive efficiency. The objective of these studies was to specifically determine the ...
Mitigation of effects from heat stress by Artemisia species
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Artemisia afra (AF) is a herb used by indigenous peoples of South Africa to alleviate heat stress during desert travel, and Artemisia absinthium (AB) ...
Utilizing laboratory and field studies to determine physiological responses of cattle to multiple environmental stressors
(University of Missouri--Columbia, 2012)
Heat stress and fescue toxicosis, resulting from intake of endophyte-infected fescue, have significant impacts on physiological processes in cattle. To study this impact, we used numerous physiological measures of thermal ...
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 ...
Synchronization and ovarian development in dairy cows and heifers
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Reproductive management is an important factor for improving reproductive efficiency in the dairy industry. Reproductive efficiency affects the ...
Effects of conjugated linoleic acid on tissue lipid composition and bone remodeling in an ovariectomized aged rat model
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Dietary fat is known to alter certain characteristics of bone metabolism in rats. CLA has been shown to decrease arachidonic acid and PGE2, thus ...
Comparison of long-term CIDR-based protocols to synchronize estrus and ovulation prior to fixed-time artificial insemination in postpartum beef cows
(University of Missouri--Columbia, 2012)
This experiment compared two long-term CIDR-based protocols to synchronize estrus and ovulation prior to fixed-time AI (FTAI) in postpartum beef cows. Cows assigned to the 14-19 d CIDR-PG protocol (n = 196) received CIDR ...
Genotype by environment interactions for growth and stayability in US red Angus
(University of Missouri--Columbia, 2012)
Genotype by environment interactions (GxE) may reduce accuracy of sire selection. The objectives of this study were to evaluate the presence of GxE by comparing reaction norms of bulls for birth weight, weaning weight, ...
Modeling the amino acid requirements of male turkeys from 0 to 21 weeks of age
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] An experiment was conducted to determine the effects of diets formulated using the ideal protein concept and modeled amino acid requirements with diet ...
Biomarker assessment for detection of joint pathology in horses and evaluation of the nutritional supplement Steadfast equine as a therapeutic
(University of Missouri--Columbia, 2012)
Degenerative joint disease (DJD) is one of the most prevalent musculoskeletal disorders seen in horses, resulting in loss of performance ability, early retirement and significant cost to horse owners. Biomarkers of tissue ...
The developmental liver transcriptome of Rattus norvegicus
(University of Missouri--Columbia, 2012)
Our research is involved in the transcriptional dynamics of perinatal liver development. The transcription factors and their downstream effects have been well studied in regards to early liver development, yet perinatal ...
Effects of dietary melamine and cyanuric acid in young Pekin ducks and weanling pigs
(University of Missouri--Columbia, 2012)
In 2007, melamine (MEL) and cyanuric acid (CYA) were added to feed ingredients in an attempt to artificially increase their crude protein and thus their momentary value. However, once ingested MEL and CYA can form insoluble ...
Proteasomal proteoloysis during porcine fertilization
(University of Missouri--Columbia, 2012)
Protein degradation is essential for maintaining a healthy cellular state. One such protein degradation pathway is the Ubiquitin Proteasome System (UPS) that consists of a small chaperone protein ubiquitin, a proteolytic ...
Function and gene expression of circulating neutrophils in dairy cows : impact of micronutrient supplementation
(University of Missouri--Columbia, 2012)
Three experiments were conducted to investigate the mechanisms of neutrophil dysfunction during the periparturient period and test potential nutritional strategies to prevent the immune-alteration typical of this time. The ...