Life Sciences Commons^™

Towards The Quantification Of Estrone And 17Β-Estradiol Conjugates In Dairy Cattle Urine Sorptive Stir Bar Extraction And Gas Chromatography-Mass Spectometry, S.M. Istiak Ahmed

Masters Theses & Specialist Projects

The global concern regarding the presence of compounds with estrogenic properties in the environment has grown significantly. Endocrine-disrupting compounds (EDCs) are environmental pollutants that disrupt the endocrine systems of both wildlife and humans. Estrogens, with their potent estrogenic effects, are particularly noteworthy among the various substances with endocrine-disrupting properties. They are of concern due to their prevalence in the environment, especially due to dairy waste contamination. These lipophilic compounds can accumulate in livestock fat tissues, potentially entering the human food chain. Sulfated forms of estrone and β- estriol, which exhibit a higher degree of saturation than their non-conjugated counterparts, have …

Liquid Chromatography Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Elisha Ogbebor

Masters Theses & Specialist Projects

Bovine mastitis is caused by a wide range of pathogens which results in a substantial economic loss for the dairy cattle livestock industry. β-defensins are a part of the innate immune system and act as the first line of defense against mastitis in bovine. β-defensins (~6- 10kDa) are antimicrobial peptides that contain about 28 to 67 amino acids, the presence of six cysteine residues results in their three disulfide bonds and a β-sheet structure. A few β- defensins have been identified in cows based on the site of occurrence and time of expression in tissue, but not in milk. A …

Effects Of Exercise When Transitioning From Free Choice Tall Fescue (Lolium Arundinaceum) Grass Diet In Late Summer To Free Choice Tall Fescue Hay Diet In Late Fall On Plasma Fructosamine Concentrations, Insulin Levels, Body Weight, And Body Condition Scores Of Stock Horse Mares And Gelding, Riley Brown

Masters Theses & Specialist Projects

Equine exercise may influence a horse’s metabolic and physiological functions. Studies can help to prove this linkage, and to better understand the nutritional requirements of the horse. The parameters that are being evaluated are plasma-fructosamine concentrations, insulin levels, body weight (lbs.), and body condition score (BCS) as a measurement of obesity. Eight horses used in this study were split into two groups; Worked horses were exercised three times a week while the unworked horses were not exercised. All eight horses were fed an ad libitum diet of tall fescue grass and hay for 127 days.

Forage samples were collected to …

Ua37/46 Charles Taylor Faculty/Staff Personal Papers, Wku Archives

WKU Archives Collection Inventories

Personal papers of Charles Taylor.

Ua1c11/124 Charles Taylor Photo Collection, Wku Archives

WKU Archives Collection Inventories

Photographs removed from Charles Taylor's personal papers.