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Articles 1 - 17 of 17
Full-Text Articles in Entire DC Network
Bovine Immune Response To Shiga-Toxigenic Escherichia Coli O157:H7., Mark A Hoffman, Christian Menge, Thomas A Casey, William Laegreid, Brad T Bosworth, Evelyn A Dean-Nystrom
Bovine Immune Response To Shiga-Toxigenic Escherichia Coli O157:H7., Mark A Hoffman, Christian Menge, Thomas A Casey, William Laegreid, Brad T Bosworth, Evelyn A Dean-Nystrom
Manuscripts, Articles, Book Chapters and Other Papers
Although cattle develop humoral immune responses to Shiga-toxigenic (Stx+) Escherichia coli O157:H7, infections often result in long-term shedding of these human pathogenic bacteria. The objective of this study was to compare humoral and cellular immune responses to Stx+ and Stx- E. coli O157:H7. Three groups of calves were inoculated intrarumenally, twice in a 3-week interval, with different strains of E. coli: a Stx2-producing E. coli O157:H7 strain (Stx2+ O157), a Shiga toxin-negative E. coli O157:H7 strain (Stx- O157), or a nonpathogenic E. coli strain (control). Fecal shedding of Stx2+ O157 was significantly higher than that of Stx- O157 or the …
Perspectives Of Cow/Calf Producers In The Dakotas - Marketing Channel Selection, Martin Beutler, Scott Fausti, Bashir Qasmi
Perspectives Of Cow/Calf Producers In The Dakotas - Marketing Channel Selection, Martin Beutler, Scott Fausti, Bashir Qasmi
Economics Commentator
No abstract provided.
Comparative Analysis Of Vertebrate Eif2ak2 (Pkr) Genes And Assignment Of The Equine Gene To Eca15q24-Q25 And The Bovine Gene To Bta11q12-Q15, Andrey A. Perelygin, Teri L. Lear, Andrey A. Zharkikh, Margo A Brinton
Comparative Analysis Of Vertebrate Eif2ak2 (Pkr) Genes And Assignment Of The Equine Gene To Eca15q24-Q25 And The Bovine Gene To Bta11q12-Q15, Andrey A. Perelygin, Teri L. Lear, Andrey A. Zharkikh, Margo A Brinton
Veterinary Science Faculty Publications
The structures of the canine, rabbit, bovine and equine EIF2AK2 genes were determined. Each of these genes has a 5' non-coding exon as well as 15 coding exons. All of the canine, bovine and equine EIF2AK2 introns have consensus donor and acceptor splice sites. In the equine EIF2AK2 gene, a unique single nucleotide polymorphism that encoded a Tyr329Cys substitution was detected. Regulatory elements predicted in the promoter region were conserved in ungulates, primates, rodents, Afrotheria (elephant) and Insectifora (shrew). Western clawed frog and fugu EIF2AK2 gene sequences were detected in the USCS Genome Browser and compared to those of other …
Ligand-Signaled Upregulation Of Enterococcus Faecalis Ace Transcription, A Mechanism For Modulating Host-E Faecalis Interaction, Sreedhar R Nallapareddy, Barbara E Murray
Ligand-Signaled Upregulation Of Enterococcus Faecalis Ace Transcription, A Mechanism For Modulating Host-E Faecalis Interaction, Sreedhar R Nallapareddy, Barbara E Murray
Journal Articles
Enterococcus faecalis, the third most frequent cause of bacterial endocarditis, appears to be equipped with diverse surface-associated proteins showing structural-fold similarity to the immunoglobulin-fold family of staphylococcal adhesins. Among the putative E. faecalis surface proteins, the previously characterized adhesin Ace, which shows specific binding to collagen and laminin, was detectable in surface protein preparations only after growth at 46 degrees C, mirroring the finding that adherence was observed in 46 degrees C, but not 37 degrees C, grown E. faecalis cultures. To elucidate the influence of different growth and host parameters on ace expression, we investigated ace expression using E. …
Economic Impacts Of Alternative Sized Dairies In South Dakota, Erik Gerlach, Larry Janssen, Gary Taylor, Alvaro Garcia
Economic Impacts Of Alternative Sized Dairies In South Dakota, Erik Gerlach, Larry Janssen, Gary Taylor, Alvaro Garcia
Economics Commentator
No abstract provided.
Prevalence Of Shiga Toxin–Producing Escherichia Coli And Salmonella Enterica In Rock Pigeons Captured In Fort Collins, Colorado, Kerri Pedersen, Larry Clark, William F. Andelt, M.D. Salman
Prevalence Of Shiga Toxin–Producing Escherichia Coli And Salmonella Enterica In Rock Pigeons Captured In Fort Collins, Colorado, Kerri Pedersen, Larry Clark, William F. Andelt, M.D. Salman
USDA Wildlife Services: Staff Publications
The potential role of rock pigeons (Columba livia) in the epidemiology of shiga toxin– producing Escherichia coli (STEC) and Salmonella enterica is unclear. Our objective was to determine the prevalence of STEC and S. enterica in pigeons at urban and dairy settings as a function of season. Prevalence of STEC and S. enterica was estimated by bacteriologic culture of cloacal swabs collected from pigeons trapped at urban and dairy locations in and around Fort Collins, Colorado from January to November 2003. Presumptive E. coli isolates were tested for the presence of virulence genes SLT-1, SLT-2, eae, hlyA …
Spring Cattle Market Review, Matthew Diersen
Spring Cattle Market Review, Matthew Diersen
Economics Commentator
No abstract provided.
Wheat Middling Versus Alfalfa Hay Supplements For Lactating Beef Cows Wintered On Ammoniated Wheat Straw, R. D. Wiedmeier
Wheat Middling Versus Alfalfa Hay Supplements For Lactating Beef Cows Wintered On Ammoniated Wheat Straw, R. D. Wiedmeier
All Current Publications
Most cow-calf producers in areas with substantial winter snow cover remain dependent on mechanically harvested and stored forages to winter their cow herds.
Application Of The 1996 Nrc To Protein And Energy Nutrition Of Range Cattle, H. H. Patterson, D. C. Adams, T. J. Klopfenstein, G. P. Lardy
Application Of The 1996 Nrc To Protein And Energy Nutrition Of Range Cattle, H. H. Patterson, D. C. Adams, T. J. Klopfenstein, G. P. Lardy
Department of Animal Science: Faculty Publications
Based on applications of the 1996 National Research Council (NRC) Nutrient Requirement of Beef Cattle (2000 update) model at our laboratories and on use of the model to evaluate published literature, it is our assessment that the NRC model (Level 1) represents an advancement in nutrient requirements of grazing cattle. We evaluated 8 published studies (35 treatment observations) to compare observed changes in body condition score (BCS) to those predicted by the NRC model, and to develop criteria to help with application of the model to range cattle nutrition. When in vitro organic matter disappearance (IVOMD) of grazed diets was …
Influences Of Management Regimes On Breeding Bird Densities And Habitat In Mixed-Grass Prairie: An Example From North Dakota, Andrea A. Lueders, Patricia L. Kennedy, Douglas H. Johnson
Influences Of Management Regimes On Breeding Bird Densities And Habitat In Mixed-Grass Prairie: An Example From North Dakota, Andrea A. Lueders, Patricia L. Kennedy, Douglas H. Johnson
USGS Northern Prairie Wildlife Research Center
It is well known that North American grassland bird populations appear to be declining (Igl and Johnson 1997, Sauer et al. 2004). Most of these birds breed and winter in North America, so declines are likely associated with continental processes (Knopf 1994). Scientists have also observed parallel declines among species that have overlapping breeding ranges but disparate wintering distributions (Igl and Johnson 1997). These patterns suggest declines may be linked to problems on the breeding grounds.
Top 10: Drought Management Tips For Ranchers, Eric Mousel, Cody Wright, Matthew Diersen
Top 10: Drought Management Tips For Ranchers, Eric Mousel, Cody Wright, Matthew Diersen
SDSU Extension Extra Archives
This article contains ten tips that Ranchers can use for drought management.
Handling Heat Stress In Cattle, Cooperative Extension Service
Handling Heat Stress In Cattle, Cooperative Extension Service
SDSU Extension Extra Archives
This document provides information on what to look for, what to do, and things to keep in mind when handling heat stress in cattle.
Using Simulation Models To Predict Feed Intake: Phenotypic And Genetic Relationships Between Observed And Predicted Values In Cattle, C. B. Williams, G. L. Bennett, T. G. Jenkins, L. V. Cundiff, C. L. Ferrell
Using Simulation Models To Predict Feed Intake: Phenotypic And Genetic Relationships Between Observed And Predicted Values In Cattle, C. B. Williams, G. L. Bennett, T. G. Jenkins, L. V. Cundiff, C. L. Ferrell
Roman L. Hruska U.S. Meat Animal Research Center: Reports
The objectives of this study were to evaluate the accuracy of the Decision Evaluator for the Cattle Industry (DECI) and the Cornell Value Discovery System (CVDS) in predicting individual DMI and to assess the feasibility of using predicted DMI data in genetic evaluations of cattle. Observed individual animal data on the average daily DMI (OFI), ADG, and carcass measurements were obtained from postweaning records of 504 steers from 52 sires (502 with complete data). The experimental data and daily temperature and wind speed data were used as inputs to predict average daily feed DMI (kg) required (feed required; FR) for …
Influence Of Corn Hybrid Traits On Digestibility And The Efficiency Of Gain In Feedlot Cattle, S. L. Jaeger, Matt K. Luebbe, C. N. Macken, Galen E. Erickson, Terry J. Klopfenstein, W. A. Fithian, David S. Jackson
Influence Of Corn Hybrid Traits On Digestibility And The Efficiency Of Gain In Feedlot Cattle, S. L. Jaeger, Matt K. Luebbe, C. N. Macken, Galen E. Erickson, Terry J. Klopfenstein, W. A. Fithian, David S. Jackson
Department of Animal Science: Faculty Publications
Two experiments were conducted to determine the influence of chemical and physical corn kernel traits on digestibility and feedlot cattle performance. Seven commercially available corn hybrids representing a range in kernel traits were evaluated for a variety of chemical and physical traits that included test weight, 1,000-grain weight, kernel size, starch, CP, amylose, Stenvert Hardness tests (kernel hardness traits), tangential abrasive dehulling device loss, 12-h in vitro starch disappearance, and rate and extent of in situ DM disappearance. Differences among hybrids existed for all physical kernel traits measured. In Exp. 1, 224 steers in 28 pens were fed the same …
Wet Corn Gluten Feed And Alfalfa Hay Levels In Dry-Rolled Corn Finishing Diets: Effects On Finishing Performance And Feedlot Nitrogen Mass Balance, T. B. Farran, Galen E. Erickson, Terry Klopfenstein, C. N. Macken, R. Lindquist
Wet Corn Gluten Feed And Alfalfa Hay Levels In Dry-Rolled Corn Finishing Diets: Effects On Finishing Performance And Feedlot Nitrogen Mass Balance, T. B. Farran, Galen E. Erickson, Terry Klopfenstein, C. N. Macken, R. Lindquist
Department of Animal Science: Faculty Publications
One-hundred ninety-two crossbred steers (initial BW= 351 ± 11 kg) were used to determine the effects of removing alfalfa hay (AH) from dry-rolled corn-based diets containing wet corn gluten feed (WCGF) on animal performance and nutrient (N and OM) mass balance in open feedlot pens. Steers were stratified by weight and assigned randomly to 24 pens (2 × 3 factorial) and fed for 132 d from June to October 2002. Experimental diets contained either 0 or 35% WCGF and 0, 3.75, or 7.5% AH, and were formulated to be isonitrogenous. For efficiency of gain, an interaction occurred (P = 0.09) …
Ec06-278 Grazing Crop Residues With Beef Cattle, Richard J. Rasby, Galen E. Erickson, Terry J. Klopfenstein
Ec06-278 Grazing Crop Residues With Beef Cattle, Richard J. Rasby, Galen E. Erickson, Terry J. Klopfenstein
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 06-278 discusses grazing crop residues with beef cattle.
2006 Beef Cattle Report, Dennis R. Brink
2006 Beef Cattle Report, Dennis R. Brink
University of Nebraska-Lincoln Extension: Historical Materials
This publication was prepared by the Animal Science staff, research technicians, unit managers, and crew involved in research programs at various locations across Nebraska. It deals with the results that were done in cow/calf, growing, beef feedlot (finishing) and beef products research.