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Evaluation of the efficacy of high levels of microbial phytase in broilers
(University of Missouri--Columbia, 2006)
(hatch to 21 days), high levels of dietary phytase improved BWG above the NRC and positive control diets (EXP 1 and 3). However, as broilers reached market weight there were no differences (P [greater than] 0.05) in BWG. Results of this research indicate...
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 ...
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 ...
Development of a pregnancy associated glycoprotein assay to detect late embryonic mortality in cattle
(University of Missouri--Columbia, 2015)
et al., 2013), and may serve as an indicator for placental development and function (Perry et. al., 2005). Pohler et al. (2013) reported that circulating concentrations of PAGs were higher on day 28 in cows that successfully maintained pregnancy until...
Effects of heat stress and fescue toxicosis on the immune system and other physiological parameters
(University of Missouri--Columbia, 2010)
Tall fescue is widely used as pasture grass in the United States, and is the most important cool season grass for grazing animals. Certain fungi also grow on these grasses which produce toxins, resulting in reduced feed ...
Determining the efficacy of a biosensor to detect calpastatin, a meat tenderness indicator
(University of Missouri--Columbia, 2007)
responsible for increased tenderness due to aging, has been investigated as a detection system. Longissimus dorsi samples from between the 12th and 13th rib of the beef carcass (n = 21 and n = 11) were extracted at 0, 24, 36 and 48 h postmortem for trial one...
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)
for the three experiments. Performance and meat yield were not affected by the decrease in CP, but abdominal pat pad yield increased as CP decreased. In EXP3 and 4, birds were fed diets with up to 2.1% decrease in CP. To EXP4, the lowest CP-diet(CT-2.1...
Effect of ovulatory follicle size on bovine pregnancy associated glycoproteins in beef cattle
(University of Missouri--Columbia, 2010)
The GnRH-induced ovulation of small dominant follicles was associated with reduced pregnancy rates and late embryonic/fetal survival around the time of embryo-uterine attachment. PAGs are secreted by binucleated trophoblast ...
The effect of reduced nocturnal temperatures on the performance of broiler chicks and hen turkey poults from 0 to 21 days of age
(University of Missouri--Columbia, 2018)
be able to thermal adapt to high or low environmental temperatures by a process of thermal conditioning during the early postnatal period (Yalcin et al., 2005). Studies have shown that thermal conditioning at an early age can improve thermotolerance...
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 ...
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 ...
Regulation of early trophoblast differentiation and development
(University of Missouri--Columbia, 2010)
or the addition of 8-bromo-cyclic AMP had a modest ability to up-regulate bovine IFN-[tau]1 reporter constructs (usually no more than 4-fold), co-expression of PKA and Ets2 led to a more than 500-fold increase in gene expression . Progressive truncation...
The effects of the selective estrogen receptor modulators MPP and raloxifene in normal and cancerous human and murine uterine tissue
(University of Missouri--Columbia, 2007)
in vivo. In addition to these data, I report gene expression changes in the uterus of mice treated individually or with the combination of 17[beta]-estradiol and the SERMs, MPP, raloxifene, ICI 182,780 are reported herein. A greater number of genes showed...
Effects of low crude protein diets with amino acid supplementation on broiler performance in the starter period
(University of Missouri--Columbia, 2009)
A series of experiments were conducted to examine the effects of feeding low crude protein (CP) corn and soybean meal diets with crystalline amino acid supplementation to broilers from 0-3 weeks of age. It was hypothesized ...
Altered microrna expression profiles in bovine fetuses with an assisted reproduction-induced congenital overgrowth syndrome
(University of Missouri--Columbia, 2018)
. There is one study that reports misregulation of one miRNA in BWS and no studies have been done to identify misregulation of miRNAs in LOS. The goal of this study is to investigate miRNA expression profiles, determine whether there are miRNAs misregulated...
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 ...
Influence of subclinical hypocalcemia on plasma biochemical parameters, liver histologic changes, and common postpartum diseases in dairy cows
(University of Missouri--Columbia, 2011)
for measurement of [iCa], NEFA concentrations, and plasma chemistry profiles at days -14, 0 (calving), 3, 7, 14, 21, and 35. On day 0, hypocalcemic cows had lower [iCa] than normocalcemic cows (P [less than] 0.001) and lower total plasma Ca (P [less than] 0...
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 ...
Exploration of fecal microbial transfer and the competitive exclusion concept in broilers as a possible alternative to antibiotic growth promoters
(University of Missouri--Columbia, 2021)
, and impact on immunocompetences from hatch to 21 days and hatch to 42 days of age, raised on used litter and wire mesh battery cages. Results in the studies here in showed that FMT treatment had a major effect (P<0.05) on growth performance for the first 7...
Quantitative trait loci mapping and candidate gene analysis for growth and carcass traits on two bovine chromosomes
(University of Missouri--Columbia, 2006)
The first objective of this study was to identify genomic regions on BTA4 and BTA14 which harbor QTL affecting weight and carcass traits in a commercial Angus population. The mapping population consisted of 1,510 purebred ...