Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

South Dakota State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2101 - 2130 of 8048

Full-Text Articles in Entire DC Network

Sdsu Irm‐Spa 2008 Summary Report, E.M. Mousel Jan 2010

Sdsu Irm‐Spa 2008 Summary Report, E.M. Mousel

South Dakota Beef Report, 2010

Integrated Resource Management (IRM) is a method of managing the farm as a whole, rather than as separate, unrelated enterprises. Using this method, resources can be utilized to maximize efficiency and profitability of an operation. A key component of the IRM approach to management is Standardized Performance Analysis (SPA). The SPA is a cow‐calf performance analysis system that is used to integrate production and financial data using a standardized performance analysis procedure to identify production management and financial inefficiencies in the cow‐calf enterprise. These performance values can be used to identify opportunities for change. Comparing results between production years as …


Effect Of Maternal Nutrition On Fetal Adipocyte Development, T.D. Jennings, K.R. Underwood, A.E. Wertz-Lutz, A.D. Weaver Jan 2010

Effect Of Maternal Nutrition On Fetal Adipocyte Development, T.D. Jennings, K.R. Underwood, A.E. Wertz-Lutz, A.D. Weaver

South Dakota Beef Report, 2010

The objective of this experiment was to determine the effects of maternal nutrition on the expression of genes in fetal tissues. Genes of interest were selected because each has been demonstrated previously to influence body composition. Twenty‐two Angus‐cross bred heifers (BW = 1161 ± 19 lbs) randomly were assigned to three dietary treatments. Maternal dietary treatments were formulated and intake was controlled to provide 150% (HIGH), 100% (INT), and 80% (LOW) of maintenance energy requirements for growing pregnant Angus heifers (NRC, 2000). Heifers were on dietary treatment from d 85 to d 180 of gestation, at which point fetuses were …


Effects Of Dietary Energy Source And Corn Oil Inclusion On Plasma Metabolite And Lipid Profiles And Intramuscular Adipose And Muscle Accretion In Beef Cattle, A.E. Wertz-Lutz, R.H. Pritchard, D.C. Mcfarland, K.W. Burns Jan 2010

Effects Of Dietary Energy Source And Corn Oil Inclusion On Plasma Metabolite And Lipid Profiles And Intramuscular Adipose And Muscle Accretion In Beef Cattle, A.E. Wertz-Lutz, R.H. Pritchard, D.C. Mcfarland, K.W. Burns

South Dakota Beef Report, 2010

The objectives of this research were to evaluate 1) fluctuations in plasma metabolites and lipid profiles and 2) differences in satellite cell differentiation and proliferation in cattle with differences in marbling relative to total fatness. Dietary starch is thought to optimize accumulation of marbling. In this experiment, readily fermentable fiber or corn oil were substituted for starch from corn in an effort to alter adipose tissue accretion. Crossbred yearling steers (n = 144) were used in a 131 d finishing trial. The trial was designed as a 3 x 2 factorial arrangement of dietary energy source by corn oil inclusion. …


The Presence Of Growth Hormone Secretagogue Receptor (Ghrelin Receptor) In Metabolic Tissues Of Beef Cattle With Differences In Composition Of Gain, J.S. Jennings, J.A. Clapper, A.D. Weaver, A.E. Wertz-Lutz Jan 2010

The Presence Of Growth Hormone Secretagogue Receptor (Ghrelin Receptor) In Metabolic Tissues Of Beef Cattle With Differences In Composition Of Gain, J.S. Jennings, J.A. Clapper, A.D. Weaver, A.E. Wertz-Lutz

South Dakota Beef Report, 2010

Beef steers (n = 72) of similar age, weight (651 ± 3.1 lb), and genetic (Angus crossbred) background were used to determine the effects of growing diet composition (high‐forage vs. high‐concentrate) on the abundance of growth hormone secretagogue receptor (GHS‐R or ghrelin receptor) in metabolically important tissues of beef cattle. At trial initiation (d 0), 8 steers were harvested for initial carcass composition. The remaining 64 steers were allotted, by weight, to pen and treatment was assigned randomly. Treatments were 1) a high‐forage diet fed during the growing period (116 d) followed by a high‐concentrate diet during the finishing period …


Effect Of Supplemental Fat From Dried Distillers Grains With Solubles Or Corn Oil On Nutrient Digestibility, A.J. Bartosh, A.E. Wertz-Lutz, C.L. Wright Jan 2010

Effect Of Supplemental Fat From Dried Distillers Grains With Solubles Or Corn Oil On Nutrient Digestibility, A.J. Bartosh, A.E. Wertz-Lutz, C.L. Wright

South Dakota Beef Report, 2010

The objective of this experiment was to determine the effects of supplemental fat from either dried distillers grains with solubles (DDGS) or raw corn oil on the digestibility of nutrients and long chain fatty acids. When compared to corn grain and grass hay, DDGS have considerably greater levels of fat, which may negatively influence rumen microbes and nutrient digestibility. Six medium‐framed crossbred steers (initial BW = 602 ± 23.6 lb) were used in a Latin square design to determine apparent total tract digestibility of diets formulated with no supplemental fat or supplemental fat from either DDGS or raw corn oil. …


Influence Of Dietary Corn Oil On Production Efficiencies And Adipose And Muscle Accretion In Beef Cattle, R.H. Pritchard, A. Wertz-Lutz, K.W. Bruns, D.M. Wulf Jan 2010

Influence Of Dietary Corn Oil On Production Efficiencies And Adipose And Muscle Accretion In Beef Cattle, R.H. Pritchard, A. Wertz-Lutz, K.W. Bruns, D.M. Wulf

South Dakota Beef Report, 2010

The objective of this research was to determine shifts in metabolism associated with differences in marbling relative to total fatness in beef carcasses. Dietary starch is thought to optimize accumulation of intramuscular adipose (IAT). The two mechanisms used to alter IAT accumulation were to substitute either readily fermentable fiber or corn oil for starch from corn. The model involved yearling steers (n = 144) during a 131 d finishing phase. The control diet contained 8.5% roughage and 81.2% corn. A higher fiber finishing diet included substitution of chopped, high moisture ear corn (43.7%) and dried corn gluten feed (18.2%) for …


Digestion And Metabolism Of Diets Containing Increasing Levels Of Corn Germ, R.H. Pritchard, G.B. Kleinhans Jan 2010

Digestion And Metabolism Of Diets Containing Increasing Levels Of Corn Germ, R.H. Pritchard, G.B. Kleinhans

South Dakota Beef Report, 2010

A novel germ fraction is being generated by the BFrac™4 process. The 20% fat, dry, flowable material is a potential source of concentrated energy to include in Northern Plains feedlot diets. A metabolism study with wethers was conducted to evaluate how ruminants would respond to this additional fat intake in finishing diets. Total collections of urine and feces were conducted on 23 wethers fed pelleted, high‐corn content, iso‐nitrogenous diets that included 0, 10, 20, or 30% germ. Each 6‐d collection period followed 21 d adaptation periods. Increasing BFrac™ germ content caused (P < 0.01) an increase in DMI and a linear (P < 0.001) decrease in DM digestibility, probably due to the effect of DMI. There was a quadratic (P < 0.01) increase in EE digestibility, plateauing at 10% germ. Dietary DE, kcal/g declined linearly (P < 0.01) but DE intake (kcal/d) increased linearly (P < 0.05) because of higher DMI. There was no (P > 0.15) dietary effect on N digestibility, but there …


Use Of De‐Oiled Dried Distillers Grains As A Source Of Crude Protein In Finishing Cattle Diets, R.H. Pritchard Jan 2010

Use Of De‐Oiled Dried Distillers Grains As A Source Of Crude Protein In Finishing Cattle Diets, R.H. Pritchard

South Dakota Beef Report, 2010

A de‐oiled distillers grains (dDGS) product was evaluated as a primary supplemental CP source in finishing diets. The 3 dietary treatments used were: SBM/Urea) as a control, typical of feedlot diets; dDGS) where dDGS replaced all of the SBM and some urea; and dDGS/SBM) where a 90% dDGS/10% SBM (N basis) blend was fed iso‐nitrogenous to the other diets. Eighteen pens of 8 steers each were fed these finishing diets for 132 d. There were no differences in steer performance or carcass traits attributable to diet. The dDGS product can be used effectively to replace oilseed meals and some of …


Sanitary Surroundings: Setting Up For Safe Food, Cooperative Extension Service Jan 2010

Sanitary Surroundings: Setting Up For Safe Food, Cooperative Extension Service

SDSU Extension Special Series

How you set up and maintain your food program determines how many routes bacteria have to invade and thrive.


Sdwri Water News, South Dakota Water Resources Institute Jan 2010

Sdwri Water News, South Dakota Water Resources Institute

SDWRI Water News

No abstract provided.


Respiratory Disease In Young Dairy Calves., A. D. Garcia, R. Daly Jan 2010

Respiratory Disease In Young Dairy Calves., A. D. Garcia, R. Daly

Dairy Science Publication Database

Respiratory disease is the second leading cause of death losses (scours is the first) in un-weaned heifer calves. Respiratory problems have increased by 34 percent in the last twenty years resulting in nearly 21 percent of all newborn calf losses (NAHMS. 2007). Heifers that survive continue to perform poorly as adult cows. In order to prevent this costly problem it is important to address both determinant and predisposing causes.


Relationship Of Circulating Ghrelin And Leptin Concentrations In Beef Cattle Exhibitingdifferences In Composition Of Gain, J.S. Jennings, R.H. Pritchard, K.W. Bruns, D.H. Keisler, A.E. Wertz-Lutz Jan 2010

Relationship Of Circulating Ghrelin And Leptin Concentrations In Beef Cattle Exhibitingdifferences In Composition Of Gain, J.S. Jennings, R.H. Pritchard, K.W. Bruns, D.H. Keisler, A.E. Wertz-Lutz

South Dakota Beef Report, 2010

Beef steers (n = 72) of similar age, weight (651 ± 3.1 lb), and genetic background (Angus crossbred) were used to determine the effects of growing period diet on the relationship of plasma ghrelin and leptin concentrations with growth performance and carcass composition. At trial initiation (d 0), 8 steers were harvested for initial carcass composition. The remaining 64 steers were allotted, by weight, to pen and treatment was assigned randomly. Treatments were 1) a high‐forage diet fed during the growing period (0‐116 d) followed by a high‐concentrate diet during the finishing period (117‐209 d; GRW‐FNSH) or 2) a high‐concentrate …


The Analysis Of Cyanide And Its Breakdown Products In Biological Samples, Brian A. Logue, Diane M. Hinkens, Steven I. Baskin, Gary A. Rockwood Jan 2010

The Analysis Of Cyanide And Its Breakdown Products In Biological Samples, Brian A. Logue, Diane M. Hinkens, Steven I. Baskin, Gary A. Rockwood

Chemistry and Biochemistry Faculty Publications

Cyanide is a toxic chemical that may be introduced into living organisms as a result of natural processes and/or anthropogenic uses (legal or illicit). Exposure to cyanide can be verified by analysis of cyanide or one of its breakdown products from biological samples. This verification may be important for medical, law-enforcement, military, forensic, research, or veterinary purposes. This review will discuss current bioanalytical techniques used for the verification of cyanide exposure, identify common problems associated with the analysis of cyanide and its biological breakdown products, and briefly address the metabolism and toxicokinetics of cyanide and its breakdown products in biological …


South Dakota State Equestrian 2010-11 Media Guide, South Dakota State University Jan 2010

South Dakota State Equestrian 2010-11 Media Guide, South Dakota State University

Jackrabbit Equestrian Media Guides (2005-2014)

Coaching Staff [page] 2-4
SDSU Administration [page] 5
Season Preview [page] 6
Jackrabbit Riders [page] 7-17
SDSU Athletic Staff [page] 18
SDSU Horses [page] 19-23
Facilities [page] 24-25
Program History [page] 26
SDSU Athletic Mission Statement [page] 27
About SDSU [page] 28-32


Sdsu Dairy Digest 2010, South Dakota State University Dairy Club Jan 2010

Sdsu Dairy Digest 2010, South Dakota State University Dairy Club

Dairy Digest

No abstract provided.


The Jackrabbit Dairy Review, Vikram Mistry Jan 2010

The Jackrabbit Dairy Review, Vikram Mistry

The Jackrabbit Dairy & Food Review

No abstract provided.


Enfermedad Respiratoria En Los Terneros Lecheros, Como Prevenirla, A. D. Garcia, A. R. Daly Jan 2010

Enfermedad Respiratoria En Los Terneros Lecheros, Como Prevenirla, A. D. Garcia, A. R. Daly

Dairy Science Publication Database

La enfermedad respiratoria es la segunda causa de muerte (diarrea es la primera) en las terneras lecheras no destetadas. Los problemas respiratorios han aumentado en un 34 por ciento en los últimos 20 años, causando cerca de 21 por ciento de la mortandad de los terneros (NAHMS 2007). Las terneras que sobreviven continúan con un desempeño pobre al convertirse en vacas adultas. Para prevenir este problema, es importante tener en cuenta tanto causas predisponentes como determinantes.


Safe Food Handling, Cooperative Extension Service Jan 2010

Safe Food Handling, Cooperative Extension Service

SDSU Extension Special Series

Careful food handling limits the ability of bacteria to grow and reproduce in food and therefore to cause food-borne illness. Keep potentially hazardous foods (such as meat, dairy, and cooked foods) out of the temperature danger zone (40˚F – 140˚F). Refrigerator temperatures should be 40˚F or less. Freezer temperatures should be 0˚F or less.


Dealing With Mycotoxin-Contaminated Feeds At Feeding Time, Alvaro Garcia, Bob Thaler Jan 2010

Dealing With Mycotoxin-Contaminated Feeds At Feeding Time, Alvaro Garcia, Bob Thaler

SDSU Extension Extra Archives

Under ideal conditions, livestock should be fed grains and byproducts that are “clean” (i.e., free of fungi and/or mycotoxins). Although feeding clean grains and byproducts is ideal, there are times when clean grains are not available locally and farm finances do not allow for substitution of home-harvested grain with purchased grain. When grains or feeds test positive for mycotoxins, there are several approaches that can be taken to reduce the toxic effects to livestock.


Water And Nutrient Balances Of Vegetative Treatment Systems For Feedlots In South Dakota, Daniel T. Ostrem Jan 2010

Water And Nutrient Balances Of Vegetative Treatment Systems For Feedlots In South Dakota, Daniel T. Ostrem

Electronic Theses and Dissertations

Vegetative treatment systems (VTS) are a possible alternative to storage basins for managing feedlot runoff but have not been researched in South Dakota. This study was conducted to evaluate the performance of VTS within South Dakota. The performance was evaluated by determining water and mass balances on each vegetative treatment area (VTA). The balances were determined by measuring all inflow, outflow, evapotranspiration, precipitation, and both soil and water nutrient concentrations within the VTA. Twelve site years have been completed in researching VTS from four feed lots in South Dakota. Seven of the twelve site-years VTS were able to prevent water …


United States Land Cover Land Use Change, Albedo And Radiative Forcing: Past And Potential Climate Implications, Christopher A. Barnes Jan 2010

United States Land Cover Land Use Change, Albedo And Radiative Forcing: Past And Potential Climate Implications, Christopher A. Barnes

Electronic Theses and Dissertations

Land Cover Land Use (LCLU) change affects Earth surface properties including albedo that impose a radiative forcing on the climate. Recent spatially explicit satellite derived contemporary LCLU, albedo, and projected LCLU data are used to study the impact of LCLU change from 1973 to 2000, and from 2000 to 2050, on albedo and surface radiative forcing for the conterminous United States. Four research hypotheses concerned with past and potential future climate implications of LCLU change are addressed. The research described in this dissertation makes an important contribution to advancing understanding of the role of LCLU change on the climate system, …


Noxious Weed Control: 2011, Mike Moechnig, Leon J. Wrage, Darell L. Deneke Jan 2010

Noxious Weed Control: 2011, Mike Moechnig, Leon J. Wrage, Darell L. Deneke

SDSU Extension Fact Sheets

No abstract provided.


South Dakota State University Undergraduate General Catalog 2010-2011, South Dakota State University Jan 2010

South Dakota State University Undergraduate General Catalog 2010-2011, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.


Affect Comprehension In Children With Autism Spectrum Disorder: A Visual Field Isolation Intervention, Erica L. Schmidt Jan 2010

Affect Comprehension In Children With Autism Spectrum Disorder: A Visual Field Isolation Intervention, Erica L. Schmidt

The Journal of Undergraduate Research

Children diagnosed with Autism Spectrum Disorders (ASD) tend to show under-activation of the right fusiform face area of the ventral temporal cortex when viewing emotional faces, which may explain their affect comprehension deficits. This left hemisphere dominance, indicative of a piecemeal processing strategy, has been shown a less effective method of understanding true emotion. The present study aimed to condition the left-visual-field-to right-FFA pathway by allowing children with ASD to work through an emotion-matching computer program. One group completed the experiment with both eyes uncovered, while the other worked with only their left visual field open. Though no significant differences …


The Journal Of Undergraduate Research: Volume 08 Jan 2010

The Journal Of Undergraduate Research: Volume 08

The Journal of Undergraduate Research

This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 8.


Long‐Term Production And Profitability From Grazing Cattle In The Northern Mixed Grassprairie, B.H. Dunn, A.J. Smart, R.N. Gates, P.S. Johnson, M.K. Beutler, M.A. Diersen, L.L. Janssen Jan 2010

Long‐Term Production And Profitability From Grazing Cattle In The Northern Mixed Grassprairie, B.H. Dunn, A.J. Smart, R.N. Gates, P.S. Johnson, M.K. Beutler, M.A. Diersen, L.L. Janssen

South Dakota Beef Report, 2010

Conventional wisdom among rangeland professionals has been that for long‐term sustainability of grazing livestock operations, rangeland should be kept in high good to low excellent range condition. Our objective was to analyze production parameters, economic costs, returns, and profit using data generated over a thirty‐four year period (1969‐2002) from grazing a Clayey range site in the mixed‐grass prairie of western South Dakota with variable stocking rates required to maintain pastures in low‐fair, good, and excellent range condition classes. Cattle weights were measured at turnout and at the end of the grazing season. Gross income per acre was calculated by multiplying …


Persistence Of Various Alfalfa Populations In South Dakota Rangeland, C.G. Misar, L. Xu, R.N. Gates, A.A. Boe, P.S. Johnson Jan 2010

Persistence Of Various Alfalfa Populations In South Dakota Rangeland, C.G. Misar, L. Xu, R.N. Gates, A.A. Boe, P.S. Johnson

South Dakota Beef Report, 2010

Inclusion of alfalfa (Medicago sativa L.) in grasslands has long been valued to increase forage production and quality. Persistence of alfalfa in semiarid rangeland has generally been poor when non‐adapted and/or conventional hay‐type cultivars are utilized, however. Demand exists for alfalfa cultivars that establish readily and persist, particularly under grazing, in semiarid rangelands. A wild population of predominantly yellow‐flowered alfalfa (Medicago sativa subsp. falcata) was found growing and reproducing naturally in the Grand River National Grassland in northwestern South Dakota. This predominantly falcata alfalfa therefore demonstrates persistence in this semiarid environment. We initiated a study in May 2006 at the …


Copper Supplementation Of Grazing Yearling Steers Supplemented Withmolybdenum While Consuming High‐Sulfur Water, K.L. Kessler, K.C. Olson, C.L. Wright, K.J. Austin, P.S. Johnson, K.M. Cammack Jan 2010

Copper Supplementation Of Grazing Yearling Steers Supplemented Withmolybdenum While Consuming High‐Sulfur Water, K.L. Kessler, K.C. Olson, C.L. Wright, K.J. Austin, P.S. Johnson, K.M. Cammack

South Dakota Beef Report, 2010

There has been on‐going research conducted by South Dakota State University in the area of the consumption of high‐sulfur (S) water by steers grazing rangeland. During the summer of 2009 a trial was conducted in cooperation with the University of Wyoming on the effects of copper supplementation of grazing pasture steers supplemented with molybdenum (Mo), while drinking high‐sulfur water. The main purpose of this experiment was to gather data that may aide in the formulation of a method to counteract the negative effects of high‐S water consumed by ruminant livestock species in areas where sulfur concentrations in water sources causes …


Metabolizability Of Dried Distillers Grains Plus Solubles In Finishing Cattle Diets, R.H. Pritchard, J.W. Mccarthick, J. Knock, D.L. Boggs, C.J. Mueller Jan 2010

Metabolizability Of Dried Distillers Grains Plus Solubles In Finishing Cattle Diets, R.H. Pritchard, J.W. Mccarthick, J. Knock, D.L. Boggs, C.J. Mueller

South Dakota Beef Report, 2010

The feeding value of dried distillers grains plus solubles (DDGS) is a combination of its contributions to protein nutrition as well as caloric intake of cattle. When DDGS is included in diets at levels where dietary CP has been met, the feeding value would primarily be a function of caloric density. A replicated 4 x 4 metabolism study was conducted to measure the caloric value of DDGS at high inclusion levels. Diets were formulated to contain 0, 12, 24, or 36% DDGS. These finishing diets were fed to yearling steers during a 21 d adaptation prior to total fecal and …


Effects Of Molybdenum Supplementation On Performance Of Forage‐Fed Steersreceiving High‐Sulfur Water, K.L. Kessler, K.C. Olson, C.L. Wright, K.J. Austin, P.S. Johnson, K.M. Cammack Jan 2010

Effects Of Molybdenum Supplementation On Performance Of Forage‐Fed Steersreceiving High‐Sulfur Water, K.L. Kessler, K.C. Olson, C.L. Wright, K.J. Austin, P.S. Johnson, K.M. Cammack

South Dakota Beef Report, 2010

There has been on‐going research in the area of the consumption of high‐sulfur (S) water by steers grazing rangeland as well as forage‐fed steers in a feedlot setting. During the summer of 2009, a trial was conducted on the effects of high‐S water in finishing steers supplemented with molybdenum (Mo). The main purpose of the research was to gather data that may aid in the formulation of a supplement to counteract the negative effects of high‐S water consumed by ruminant livestock species in areas where sulfur concentration in water sources is a risk to animal health and performance. The specific …