Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 55 for “"Cattle Grazing"”.
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Serum Cholesterol of Young Cattle Grazing Bermudagrass and Fescue Pastures
… of genotype on growth and reproduction in cattle grazing endophyte-infected (Neotyphodium coenophialum) tall fescue (Festuca arundinacea Schreb.) pastures (E+ fescue) with those grazing bermudagrass [Cynodon dactylon (L.) pers.] pastures (BG). Cattle grazing E+ fescue appear to have a …
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Biotic Responses on Typha-monodominant Semipermanent Wetlands To Cattle Grazing
… objective of this study was to test the use of cattle grazing as a method of controlling dense cattail stands in semi-permanent wetlands to improve breeding duck habitat. Plots (.81 ha) were established in the emergent zone in each of two wetlands (≤ 4 ha) in the vicinity of Waubay National …
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Effect of Grazing Pressure on Cattle Grazing Cool Season Annual Forages
… understanding of specific plants selected by grazing ruminants remains elusive. Many long- and short-term factors impact cattle grazing behavior. Ultimately, grazing behavior can affect forage available for grazing, nutrient density of forage, dry matter intake, and animal performance. A …
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Conserving widely distributed wildlife species in an African savanna: parks, cattle-grazing and community-managed areas
… an African savanna, where bushmeat hunting and cattle-grazing are considered the greatest threats to wildlife, this thesis combined three approaches to study the conservation ecology of widely distributed wildlife at three spatial scales (continent-wide; landscape; home range). The …
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The effects of protein supplementation on performance of beef cattle grazing native mixedgrass range in western Kansas
Cattle consuming low-protein forage (<7% CP) require additional supplemental protein to maintain BW and BCS. Daily delivery of protein supplements places undue financial burden on cattle producers. Supplementing cows as infrequently as once every 6 d) has resulted in similar changes cow BW and BCS …
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The Ecological Effects of Cattle Grazing on Reptiles and Small Mammals in a San Joaquin Valley Grassland
<p>Livestock grazing is a common and extensive land use practice in the United States occurring in a wide range of habitat types. As such, livestock grazing has the potential to alter ecosystem structure, function and community composition. The primary component (Chapter 1) of this thesis examined …
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Quantifying the environmental factors that determine benthic macroinvertebrate assemblages in streams by analyzing stressors associated with a gradient of cattle grazing
… a gradient of increasing stress (increased cattle density). Macroinvertebrate assemblages were related to environmental factors that were quantified at the sample scale. Environmental factors and macroinvertebrates were concurrently collected so that assemblage structure could be directly …
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Effect of application of fluidized bed combustion residue to reclaimed mine pastures on forage yield, composition, animal performance and mineral status
… The blood packed cell volume was higher in cattle grazing FBCR-amended pastures. Liver levels of Fe, H, Hi and Na were lower in cattle on pastures amended with FBCR or limestone. Bile levels of Mn were depressed in cattle grazing FBCR~ and limestone-amended pastures. The level of Cu in the …
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Environmental Factors Determining the Pre-Restoration Benthic Macroinvertebrate Assemblage In A Stream Used By Cattle
… of Mountain Run. BR had been heavily used for cattle grazing for decades and suffered from sediment, nutrients, and lack of a forested riparian zone. MU had a forested riparian zone, but still received nutrient and sediment inputs from upstream cattle grazing. Visual habitat assessments were …
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Grazing and Range Management - Alberta
Livestock grazing and range management have had major impacts on grassland vegetation in Alberta. Grazing animals have had impacts on plant communities in Alberta since before fur traders occupied the land. Over the years both livestock and wildlife have been studied and managed to try and ensure …
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The Cattle Dung Arthropod Community in Eastern South Dakota: Their Colonization, Impact on Degradation, and Response to Rangeland Management
<p>Cattle grazing operations are an important industry throughout the world and a vital component of the economy of the Northern Great Plains. Rangeland management is important to ensure that cattle grazing remains not only profitable but also environmentally sustainable. Conventionally managed …
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Cattle and badger dynamics in relation to the potential transmission of Mycobacterium bovis
… of Mycobacterium bovis between and among cattle and badgers represents an area of research which continues to pose many questions in the pursuit to eradicate the disease from cattle herds within the UK and Ireland. Predominant queries remain over when and where both species become …
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Influence of endophyte infection of tall fescue with and without white clover on performance, intake, and bite size in steers during the grazing season and subsequent performance in the feedlot
… of tall fescue (Festuca arundinacea Schreb.) on grazing cattle and subsequent feedlot performance, serum minerals and prolactin, intake, digestibility, bite size, and biting rate. Grazing animal performance was measured April to October, 1989 and 1990, at two locations in VA. Effects of grazing …
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A population biology of breeding redshanks (Tringa totanus L.)
… early. The substantial losses of nests due to cattle grazing on the marsh (45%) could easily be controlled by preventing the access of cattle to the main breeding area until after the end of the nesting season. Nest predation was rare (less than 4%) in most years, but increased in a year of …
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Characterization of hyporheic zone processes of a northern prairie stream
… channel and bank sediments. The effects of cattle grazing at the streamside interface of the riparian zone were also examined at two locations to determine land use impacts on the hyporheic zone. </p><p> Electrical conductivity (EC) and ammonium gradients were observed beneath the stream …
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