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The Influence Of Chromium Supplementation On The Insulin Pathway, Carcass Traits, And Meat Quality Of Feedlot Steers, Heather Rode
The Influence Of Chromium Supplementation On The Insulin Pathway, Carcass Traits, And Meat Quality Of Feedlot Steers, Heather Rode
Electronic Theses and Dissertations
Chromium supplementation (Cr) can increase efficiency of growth in livestock by amplifying insulin signaling. Previous research showed Cr increases nutrient utilization and changes in muscle growth and fat deposition. Therefore, the objective of this research was to determine how Cr affects carcass traits, meat quality, and the insulin pathway in feedlot steers. Calf-fed steers were allotted to 0 ppb (CON) or 400 ppb Cr propionate (Cr400) for 210d in experiment 1. Two longissimus muscle (LM) biopsies were collected to examine protein abundance and gene expression after adaptation to a terminal implant and after adaption to ractopamine hydrochloride (RAC). A follow …
Local And Systemic Actions Of Gnrh Relating To Estradiol And Associated Reproductive Parameters In Beef Cattle, Jerica J.J. Rich
Local And Systemic Actions Of Gnrh Relating To Estradiol And Associated Reproductive Parameters In Beef Cattle, Jerica J.J. Rich
Electronic Theses and Dissertations
In cattle, estradiol is responsible for modulating many mechanisms involved in successful reproduction. Specifically estradiol is the primary signal for the initiation of standing estrus (Allrich, 1994), and cattle expressing estrus prior to fixed time AI (FTAI) have been reported to have increased preovulatory estradiol concentrations (Perry and Perry, 2008) and increased pregnancy success compared to animals that did not exhibit estrus (Richardson et al., 2016). Gonadotropin releasing hormone, classically, stimulates estradiol production via the two-cell two-gonadotropin hypothesis (Fortune and Quirk, 1988), and GnRH administered systemically in small doses (5 μg) has been reported to elicit an LH pulse similar …
Let Them Eat Beef: Effects Of Beef Consumption On Markers Of Metabolic Syndrome, Kristin L. Olson
Let Them Eat Beef: Effects Of Beef Consumption On Markers Of Metabolic Syndrome, Kristin L. Olson
Electronic Theses and Dissertations
To determine the effects of a diet that provides 30% energy from protein with ½ as lean, red meat on risk factors of metabolic syndrome in humans. This pilot study was a 3- month, randomized, control, intervention trial with 33 participants (Beef-Intervention n=18; DASH-Control n=15) who displayed markers of metabolic syndrome. Registered Dietitians Nutritionists recruited and educated participants on Beef-Intervention Lean Beef Pattern, (30% of energy from protein with ½ as lean red meat, 40% carbohydrate, 30% fat) or DASH-Control dietary pattern, (15% of energy from protein, 55% carbohydrate and 30 % fat). Of the 33 participants who completed the …