Browsing Theses and Dissertations (MU) by Thesis Advisor "Kerley, Monty Stephen, 1960-"
Now showing items 1-20 of 21
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Applying effective energy concept for intake prediction and balancing ruminal nitrogen and post-ruminal amino acid requirements for beef cattle
(University of Missouri--Columbia, 2013)Proper animal nutrition involves balancing nutrient supply to nutrient requirement. Accurate intake prediction is fundamental to diet formulation and appears simple but has historically been challenging to accomplish. ... -
Characterization of grape condensed tannins and their effect on Black Rhinoceros (Diceros bicornis) hindgut fermentation
(University of Missouri--Columbia, 2014)African black rhinoceros wild populations have decreased 97 percent since the 1960s, mainly as a result of poaching and the species is classified as Critically Endangered. Captive populations are managed to ensure survival ... -
The effects of supplemental rumen-protected fat in feedlot rations
(University of Missouri--Columbia, 2007)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Four experiments were conducted to determine the effects of supplemental rumen-protected fat in feedlot rations. The first experiment tested the effects ... -
Essential oil effects on rumen fermentation, animal performance, and meat quality of beef steers
(University of Missouri--Columbia, 2013)Efficiency in ruminants has historically been improved by using antibiotics and ionophores to alter rumen fermentation. Nutritionists, however, have begun searching for alternative rumen modifiers due to the negative ... -
Establishment of silvopastoral system into a Missouri hardwood forest
(University of Missouri--Columbia, 2010)This research was conducted at the University of Missouri Hugo Wurdack Farm located near Cook Station, MO (Crawford County, Section 36, Township 36N, Range 5W). Plots were located on north- or north-east facing slopes. ... -
Evaluation of in vitro and in vivo equine microbial population shifts in response to colic conditions
(University of Missouri--Columbia, 2011)We designed two continuous culture experiments to test the effects of starch dosage and starvation upon equine fecal microflora. Diets were designed containing fructooligosaccharides and mannanoligosaccharides in order to ... -
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 ... -
The impact of fescue toxicosis & T-Snip score on post-weaning beef cattle performance
(University of Missouri--Columbia, 2017)It is well known that fescue toxicosis has a negative impact on cattle productivity. These studies were conducted to evaluate the effects of fescue toxicosis on post-weaning beef steers, as well as the impact of T-Snip ... -
Improvement of feed efficiency in beef cattle through selection upon residual feed intake (RFI)
(University of Missouri--Columbia, 2010)Selecting beef cattle which metabolically are more efficient at converting feed into gain or body weight maintenance is one way to reduce feed cost in beef production. Residual feed intake (RFI) is one trait used to identify ... -
Improving fiber by-product utilization in high concentrate diets
(University of Missouri--Columbia, 2013)The effects of starch and fiber combinations in feedlot diets were examined to determine maximum whole shell corn (WSC) inclusion rate in high fiber diets and determine the effects of fibrolytic enzyme addition to WSC diets ... -
Increasing land and forage utilization by Missouri cow/calf operations using silvopasture practices
(University of Missouri--Columbia, 2006)Although rotational grazing has improved pasture management significantly in recent years, the need continues to exist for beef producers to increase land utilization and maintain a high level of forage production during ... -
Influence of diet, production traits, blood hormones and metabolites, and mitochondrial complex protein concentrations on residual feed intake in beef cattle
(University of Missouri--Columbia, 2009)Residual feed intake (RFI) is the difference between measured feed intake and predicted feed intake of an animal. Intake prediction is computed from a regression of intake on gain and metabolic body weight. Residual feed ... -
Mitochondrial complex I protein is related to residual feed intake in beef cattle
(University of Missouri--Columbia, 2011)Residual feed intake (RFI) is a calculated using DMI as dependent variable and metabolic body weight (BW 0.75) and ADG as independent variable. Mitochondria complex I (mitochondrial NADH:ubiquinone oxidoreductase) is one ... -
Optimizing beef cattle performance using rumen-protected lysine supplementation in diets balanced for predicted amino acid and effective energy requirement
(University of Missouri--Columbia, 2017)The objectives of these experiments were to determine the bypass value of rumen-protected lysine and performance responses of beef cattle fed encapsulated lysine. During experiment 1 singe-flow continuous culture fermenters ... -
Potential diagnostic methods and nutritional changes to combat bovine respiratory disease in receiving cattle
(University of Missouri--Columbia, 2017)Bovine respiratory disease (BRD) accounts for up to 70 percent of health disruptions and $500 million in associated medical costs and production losses, thus receiving considerable attention from cattle health personnel ... -
Prediction of optimal rumen degradable protein levels in no-roughage, corn-based feedlot diets
(University of Missouri--Columbia, 2007)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The need to balance no-roughage, corn-based feedlot diets for rumen degradable protein inclusion is essential in the feedlot setting. Five crossbred ... -
The relationship between mitochondria and residual feed intake in feedlot cattle
(University of Missouri--Columbia, 2006)Residual feed intake (RFI) is a measure of feed efficiency that is not related to an animal's growth rate or body size. Little is known about the factors that affect RFI because, until recently, the measurement of RFI in ... -
The role of postruminal amino acid supply and mitochondria function on residual feed intake
(University of Missouri--Columbia, 2014)Residual feed intake (RFI), used as a metabolic efficiency measurement, is BW and growth rate independent and also is a moderately heritable trait. Previous research reported RFI was correlated to feed activity and behavior, ... -
Ruminal degradation of protein and carbohydrate in the domestic and wild ruminant
(University of Missouri--Columbia, 2010)To optimize growth and health ruminant animals in a confined setting, diets need to be formulated to provide balanced levels of rumen degradable energy and nitrogen (RDN) to maximize microbial growth while also providing ... -
Ruminal degradation of protein and carbohydrate using a batch culture system, and response to roughage removal, rumen modifier inclusion and postruminal amino acid supply in feedlot cattle
(University of Missouri--Columbia, 2017)Three main studies were conducted to characterize protein and carbohydrate ruminal degradation using a batch culture system, demonstrate and responses to roughage removal, rumen modifiers inclusion and postruminal amino ...