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Effect of dry matter intake restriction on energy balance, ruminal fermentation, and nutrient retention by beef steers
(University of Missouri--Columbia, 2005)
Two studies were conducted to determine the effects of DMI restriction on digestion and metabolism by feedlot steers. In Trial 1, 12 Angus X steers (BW [almost equal to] 450 [plus or minus] 18 kg) were assigned randomly ...
Determining the efficacy of a biosensor to detect calpastatin, a meat tenderness indicator
(University of Missouri--Columbia, 2007)
An instrumental tenderness detection system used at the time of grading to sort beef carcasses on their predicted tenderness would be valuable for the beef industry. A biosensor to accurately predict calpastatin, the ...
Evaluation of the efficacy of high levels of microbial phytase in broilers
(University of Missouri--Columbia, 2006)
Three experiments were conducted to evaluate the efficacy of high levels of microbial phytase in broiler diets. In experiment one (EXP 1), phytase was included in the diets at 0, 250, 500, 10,000, and 20,000 PU/kg diet. ...
Evaluation of modified montmorillonites in poultry diets
(University of Missouri--Columbia, 2007)
The present work was conducted to determine if modification of MONTs with Cu and Zn would enhance the protection of broiler chicks against the adverse effects of AF, and to determine if the modified MONTs would be bioavailable ...
Endocrinology of equine metabolic pathophysiology
(University of Missouri--Columbia, 2006)
Obesity in horses is associated with a number of maladies including insulin resistance and laminitis; therefore studies investigating the metabolic physiology of equine were done. In our first study, we characterized the ...
Temporal effects of fescue toxicosis and heat stress on rat physiology and hepatic gene expression
(University of Missouri--Columbia, 2007)
Fescue toxicosis results from intake of toxins in fescue containing an endophytic fungus, Neotyphodium coenophialum. Time-related changes in rats associated with intake of an endophyte-infected fescue diet (E+) were evaluated ...
The effects of supplemental anionic salts & yeast culture on the production of dairy cattle during the periparturient period
(University of Missouri--Columbia, 2006)
The objective of this thesis was to determine nutritional strategies with the strategic use of feed additives during the periparturient period to reduce the negative energy balance as the dairy cow transitions from late ...
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 ...
Endocrine associations with beef carcass quality and yield
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Serum concentrations of insulin, insulin-like growth factor I (IGF-I) and leptin were investigated relative to their association to beef carcass quality ...
Arachidonate 15-lipoxygenase and ubiquitin as potential fertility markers in boars
(University of Missouri--Columbia, 2004)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This study was performed to determine whether using high power microscopic analysis and two putative biochemical fertility markers, 15-lipoxygenase ...
DNA methylation in the early porcine embryo
(University of Missouri--Columbia, 2007)
Reproductive technologies such as in vitro fertilization, intracytoplasmic sperm injection, parthenogenetic activation, and somatic cell nuclear transfer are powerful procedures in the production of animals for agriculture, ...
11 [beta]-hydroxysteroid dehydrogenase activity in feline, equine, and ossabaw swine adipose tissue
(University of Missouri--Columbia, 2007)
Enzymatic 11 [beta] HSD1 amplification of glucocorticoid concentrations in adipose tissue has been associated with obesity, diabetes, hypertension, dyslipidemia, and cardiovascular disease in humans and mice. Unfortunately, ...
The importance of the supplementation of zinc in nursey pig diets
(University of Missouri--Columbia, 2006)
Two 28-d experiments were conducted to investigate the effect of feeding pharmacological concentrations of Zn, from organic and inorganic sources, on growth performance and intestinal microbial population in nursery pigs. ...
Selection for placental efficiency in swine
(University of Missouri--Columbia, 2004)
With the overall goal of increasing profitability by increasing litter size, two lines of pigs were divergently selected for four generations on an index of reproductive traits (n = 193 litters). The selection index (SI) ...
Effects of continous administration of low-dose of Escherichia coli lipopolysaccharide in chicks and poults fed non toxic doses of aflatoxin B1 and T-2 toxin
(University of Missouri--Columbia, 2005)
Six studies (three with broilers and three with turkeys) were conducted to determine if E. coli lipopolysaccharide (LPS) would enhance the effects of aflatoxin B1 (AFB1) and the T-2 toxin (T-2) in chicks and poults fed ...
Gene expression profiling of bovine ovarian follicular selection
(University of Missouri--Columbia, 2006)
Lack of, or abnormal, ovarian follicular development is a major factor associated with impaired fertility in mammals. However, development of new treatments is limited by our poor understanding of ovarian follicular ...
Effects of reduced protein, amino acid supplemented diets on production and economic performance of commercial broilers fed from hatch to market age
(University of Missouri--Columbia, 2007)
Five studies were conducted to determine the effects of reduced crude protein (CP) of commercial boilers fed for further processing. In experiments(EXP) 1, 2, and 3, birds were fed diets with up to 1.5% reduction in CP. ...
Estrus induction and maintenance of cycles in gilts with PG-600 and boar exposure
(University of Missouri--Columbia, 2007)
This study looked at the efficacy of PG-600 and boar exposure to induce and maintain cycles. Gilts received one of four treatments: PG-600, weekday 10 min full physical contact boar exposure (BE), PG-600+BE, and neither ...
Involvement of mitochondrial transcription factor A (TFAM) in porcine gametogenesis and preimplantation embryo development
(University of Missouri--Columbia, 2007)
Mitochondrial Transcription Factor A (TFAM) is responsible for maintenance and transcriptional control of mitochondrial DNA (mtDNA). TFAM knockout is embryolethal. We have studied the expression and distribution of TFAM ...
Identification and quantification of differentally represented transcripts in preimplantation bovine embryos
(University of Missouri--Columbia, 2007)
Identification of transcripts present at key development stages in preimplantation embryos is critical for a better understanding of early embryogenesis. To that end, we characterized the relative abundance of multiple ...