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- Nebraska Agricultural Experiment Station: Historical Circulars (7)
- Department of Animal Science: Dissertations, Theses, and Student Research (4)
- Historical Research Bulletins of the Nebraska Agricultural Experiment Station (4)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (2)
- Department of Biological Systems Engineering: Dissertations and Theses (1)
Articles 1 - 19 of 19
Full-Text Articles in Agriculture
Annotating Gene Expression And Regulatory Elements In Tissues From Healthy Thoroughbred Horses And Identifying Candidate Mutations Associated With Perosomus Elumbis In An Angus Calf, Alexa Barber
Department of Animal Science: Dissertations, Theses, and Student Research
Genome annotation has a direct impact on the success of genomic studies. Transcriptome analyses and chromatin immunoprecipitation and sequencing (ChIP-seq) have been used to functionally annotate genomes. These methods can identify protein-coding genes, non-coding transcripts, and cis-regulatory elements across the genome. The primary objective of the first study was to functionally annotate the equine genome through the assessment of nine tissues: adipose, brain, heart, lamina, liver, lung, skeletal, muscle, testis, and ovary. In the first project, 150 bp, paired-end RNA sequencing (RNA-seq) libraries were generated in stallion tissues and compared to previously generated mare RNA-seq libraries to quantify variation in …
The Role Of Fatty Acids In Ruminant Diets And Novel Feed Ingredients High In Omega– 3 Fatty Acids Fed In Feedlot Diets, Mitchell M. Norman
The Role Of Fatty Acids In Ruminant Diets And Novel Feed Ingredients High In Omega– 3 Fatty Acids Fed In Feedlot Diets, Mitchell M. Norman
Department of Animal Science: Dissertations, Theses, and Student Research
A finishing study evaluated the performance, carcass characteristics and fatty acid profiles of steers fed four inclusions of a novel feedstuff Green Grass. Green Grass is a product comprised of sesame meal, giant kelp, cassava, and sorghum containing high concentrations of polyunsaturated fatty acids. No differences were observed in initial BW, final BW, BW gain, HCW, LM area, 12th rib fat depth, calculated YG, or liver abscess %. Dry matter intake linearly increased as Green Grass inclusion increased in the diet. Steers fed Green Grass had lower G:F than control cattle, and steers fed 30% Green Grass had a …
Use Of Uav Imagery And Nutrient Analyses For Estimation Of The Spatial And Temporal Contributions Of Cattle Dung To Nutrient Cycling In Grazed Ecosystems, Amanda Shine
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Nutrient inputs from cattle dung are crucial drivers of nutrient cycling processes in grazed ecosystems. These inputs are important both spatially and temporally and are affected by variables such as grazing strategy, water location, and the nutritional profile of forage being grazed. Past research has attempted to map dung deposition patterns in order to more accurately estimate nutrient input, but the large spatial extent of a typical pasture and the tedious nature of identifying and mapping individual dung pats has prohibited the development of a time- and cost-effective methodology. The first objective of this research was to develop and validate …
Impact Of Feeding Distillers Grains Or Isolated Components In Distillers Grains To Growing And Finishing Cattle, And The Comparison Of Protein Content And In-Situ Digestibility Of Feeds Commonly Used In Feedlot Diets, Brianna B. Conroy
Department of Animal Science: Dissertations, Theses, and Student Research
The use of distillers grains originating from biofuel production has become widely used in feedlot diets. Distillers grains has been identified as having an increased feeding value relative to dry-rolled corn, in recent years the composition of distillers grains has begun to change due to greater refinement in the ethanol production process. Two feedlot trials were conducted to evaluate the contribution of fat, fiber, and protein from distillers grains in the diets of growing and finishing cattle. Growing steers were fed a grass hay-based ration, including a corn control diet compared to a diet containing modified distillers grains plus solubles, …
The Utilization Of Brown Midrib Corn Silage Hybrids And Kernel Processing To Improve Corn Silage Value And The Use Of High Protein Distillers Grains To Evaluate Starch Digestion, Lauren A. Ovinge
Department of Animal Science: Dissertations, Theses, and Student Research
Three studies evaluated the effects of corn silage hybrid, inclusion level and kernel processing in growing and finishing diets. Two more studies were conducted on high protein dried distillers grains and its effect in finishing diets. Experiment 1 and 2 evaluated three corn silage hybrids; standard (CON; hybrid-TMF2H708), brown midrib (bm3; hybrid-F15579S2) and Unified™ brown midrib with SilaSoft™ kernel technology with a floury endosperm (bm3-soft; hybrid-F15578XT) harvested with or without kernel processing on growth and metabolism. Experiment 3 evaluated a brown midrib hybrid (bm3; hybrid-F27F627; Mycogen® Seeds) or a control (CON; hybrid-TMF2H708) in the diet …
Growing Yeast For Livestock, Zachary Christman
Growing Yeast For Livestock, Zachary Christman
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Over 500,000 tons of organic materials such as food scraps are disposed of each year in Wisconsin. A large percentage of this material could be composted or turned into useful products. The purpose of this article is to educate farmers and organizations on how to turn food waste into a high value food source for livestock. Yeast can be grown at any time of the year without the large inputs of agricultural chemicals and machinery that is common with other feed production methods. A yeast growing facility can be scalable to any size the producer wants such as a small …
The Influence Of The Bovine Fecal Microbiota On The Shedding Of Shiga Toxin-Producing Escherichia Coli (Stec) By Beef Cattle, Nirosh D. Aluthge
The Influence Of The Bovine Fecal Microbiota On The Shedding Of Shiga Toxin-Producing Escherichia Coli (Stec) By Beef Cattle, Nirosh D. Aluthge
Department of Food Science and Technology: Dissertations, Theses, and Student Research
During the past three decades, Shiga toxin-producing E.coli (STEC) have emerged as an important food safety concern. Although initially E. coli O157 was the main focus, recent outbreaks and resulting investigations have shown that certain non-O157 STEC are as much a threat to food safety as their O157 counterparts. To the beef industry, STEC have been of particular concern due to the frequent association of beef and beef products as vehicles of STEC infection. As a result, along with E. coli O157, six non-O157 STEC serogroups (known as the ‘big six’) are now regulated as adulterants in certain raw beef …
Life Cycle Boundaries And Greenhouse Gas Emissions From Beef Cattle, Quentin M. Dudley
Life Cycle Boundaries And Greenhouse Gas Emissions From Beef Cattle, Quentin M. Dudley
Department of Biological Systems Engineering: Dissertations and Theses
Beef cattle are estimated to directly contribute 26% of U.S. agricultural greenhouse gas (GHG) emissions, and future climate change policy may target reducing these emissions. Life cycle assessment (LCA) of GHG emissions from U.S. feedlot beef cattle was conducted to compare methods of the U.S. Environmental Protection Agency (EPA) with a more complete evaluation of emissions. The inclusion of emissions from crop production for feed, associated land use change, and other minor factors nearly doubled GHG emissions associated with beef feedlots from the EPA Annual Inventory estimate of 1611 kgCO2e hd-1 yr-1 to 3182 ± 167 …
Structural And Operational Characteristics Of Nebraska And Kansas Feeder-Cattle Growing Operations, J. L. Jorgensen, J. G. Kendrick, A. C. Wellman, J. H. Mccoy, J. W. Koudele, Q. C. Smith
Structural And Operational Characteristics Of Nebraska And Kansas Feeder-Cattle Growing Operations, J. L. Jorgensen, J. G. Kendrick, A. C. Wellman, J. H. Mccoy, J. W. Koudele, Q. C. Smith
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The beef cattle industry is experiencing a significant increase in demand for feeder cattle. Current difficulties in obtaining sufficient numbers of feeder cattle on a continuing basis have put pressures on the feeder cattle marketing system that did not exist in the past. Feedlot operators, growers (backgrounders), and cow-herd operators are looking for ways and means of improving the system. Innovations are being tested. Those circumstances prompted personnel of the Agricultural Experiment Stations of Kansas and Nebraska to undertake a joint study of cattle marketing under a Regional Research Project.
Influence Of Advance In Season On Nutritive Value Of Forage Consumed By Cattle Grazing Western Nebraska Native Range, C. L. Streeter, D. C. Clanton, O. E. Hoehne
Influence Of Advance In Season On Nutritive Value Of Forage Consumed By Cattle Grazing Western Nebraska Native Range, C. L. Streeter, D. C. Clanton, O. E. Hoehne
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The purpose of this study was to determine the influence of the advance in season on the nutritive value of forage consumed by cattle grazing western Nebraska summer range. Eleven digestion trials were conducted during the summer grazing season of two consecutive years.
The Relations Of Vegetative Composition And Cattle Grazing On Nebraska Range Land, T. E. Brinegar, F. D. Keim
The Relations Of Vegetative Composition And Cattle Grazing On Nebraska Range Land, T. E. Brinegar, F. D. Keim
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The objectives of the studies reported in this paper were: (1) to obtain an analysis of the vegetation in tall and short grass range lands, (2) to observe the activities of cattle on the range, and (3) to determine the effects of grazing upon vegetation.
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Nebraska Agricultural Experiment Station: Historical Circulars
In Nebraska, a hustling frontier state in 1887, the legislature hesitated not at all in taking advantage of the provisions of the Hatch Act, and now that fifty years have elapsed since the Station was founded, seventy-five years since the Land Grant College Act was passed and the U. S. Department of Agriculture established, and almost twenty-five years since the Agricultural Extension Service was added, it seems worth while to present a general summary of achievement within the state. The main object will be to show some of the important things that have been learned through the investigations of the …
Feeding And Care Of Calves, R. R. Thalman
Feeding And Care Of Calves, R. R. Thalman
Nebraska Agricultural Experiment Station: Historical Circulars
It is not infrequent that considerable difficulty is encountered in raising calves with limited amounts of milk or none at all. Requests for information on calf gruels, mixed grain feeds, and commercial supplements are frequent enough to make a short circular upon this subject seem desirable. Furthermore, as the more diversified agricultural program gets under way these requests are increasmg.
White Scours Of Calves, L. Van Es
White Scours Of Calves, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
It becomes possible to understand some of the reasons for the occurrence of disorders among the newborn of animals kept under the usual conditions imposed by domestication. Among these, the subject of this circular, White Scours in Calves, occupies a prominent place.
The Abortion Problem In Farm Live Stock, L. Van Es
The Abortion Problem In Farm Live Stock, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
Successful animal husbandry is fundamentally dependent on the efficient reproduction and preservation of young stock. Not only are losses among the latter a prolific source of direct economic damage, but they also tend to create an equally serious disadvantage of a more indirect nature. Losses of young animals, unless a reduction of our live stock population can be tolerated, necessitate the setting aside of a larger number of females for purely reproductive purposes than would be required if such losses were not a factor.
On The Nature And Cause Of "The Walking Disease" Of Northwestern Nebraska (Necrobiosis Et Cirrhosis Hepatis Enzootica), L. Van Es, L. R. Cantwell, H. M. Martin, J. Kramer
On The Nature And Cause Of "The Walking Disease" Of Northwestern Nebraska (Necrobiosis Et Cirrhosis Hepatis Enzootica), L. Van Es, L. R. Cantwell, H. M. Martin, J. Kramer
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
The "walking disease" of Northwestern Nebraska is essentially an enzootic necrobiosis and cirrhosis of the liver due to a toxic agent and does not materially differ from similar disorders occurring in other regions or countries. The disease affects horses and cattle but it is most commonly encountered in the former. The disease in all its clinical and pathological manifestations may be reproduced with the utmost fidelity by the feeding with plants of Senecio riddellii.
Bovine Tuberculosis, L. Van Es
Bovine Tuberculosis, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
The development of the present-day knowledge of the tuberculoses of animals is so intimately associated with that pertaining to the human form of the disease that the latter needs to be included in the historical considerations, without which it would be difficult to view any phase of the subject in a comprehensive manner.
Bovine Tuberculosis, L. Van Es
Bovine Tuberculosis, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
Tuberculosis affects all species of domestic mammals although with different degrees of intensity and frequency. Cattle and swine furnish the greatest number of cases.
The Abortion Problem In Farm Live Stock, L. Van Es
The Abortion Problem In Farm Live Stock, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
This casting out of a dead or at least abnormal fetus we call abortion. It constitutes the culminating accident in a process set into motion by disease or injury. To the breeder it is its most conspicuous feature, and it's more or less constant occurrence among live stock warrants us to speak of the abortion problem. It is the purpose of this publication to lay before our Nebraska breeders such information on the subject as can be gathered from the more recent literature and from observations in the field and the laboratory.