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.
Results
Showing 1 to 14 of 14 for “"intensive grazing"”.
-
Phosphorus Losses from Simulated Dairy Mangement Intensive Grazing Forage System
… are evaluating the effectiveness of management intensive grazing (MIG) systems as a means of reducing the economic pressures of confinement feeding and manure handling. Systems using MIG have been promoted as an environmentally safer way of managing nutrient balance on Center. However, little …
-
Phosphorus Losses From Simulated Dairy Land Uses of Management Intensive Grazing and Concentrated Animal Feeding Operations
Dairy grazing systems have been promoted as an environmentally friendly alternative to concentrated animal feeding operations (CAFOs). However, questions remain regarding the amount of phosphorus (P) loss from pasture-based dairies. Therefore, the goal of this study was to quantify P losses via …
-
Differential dry matter production, nutritive value and grazing utilisation of perennial ryegrass varieties and mixtures evaluated within intensive grazing regimes
… profit. Perennial ryegrass (Lolium perenne L.) grazing efficiency has been shown to influence farm herbage utilisation. <br/><br/>The objective of this thesis was to develop a methodology for the evaluation of perennial ryegrass variety grazing efficiency. Such evaluation data could then be …
-
Profitability Analysis of Forage Based Beef Systems in Appalachia
… are not necessarily profitable. Management intensive grazing has been suggested as an alternative to traditional production practices to increase profitability. A profitability analysis was conducted by comparing a traditional style of cow-calf management where hay was produced on farm with …
-
Financial Performance of Pasture-Based Dairies: A Virginia Case Study
Virginia dairy producers are considering intensive grazing as a profitable and ecologically viable alternative to confinement dairy production. The objective of this study is to compare financial performance for pasture-based dairy farms relative to similar resourced-based confinement farms. …
-
The effect of winter grazing and a nitrification inhibitor on nitrous oxide emissions and denitrification in a stony soil
Intensive grazing of forage crops by dairy cows is common practice during the winter months in the Canterbury region of New Zealand. Such intensive grazing on wet soil increases the risk of denitrification and the production of the powerful greenhouse gas, nitrous oxide (N₂O). However, at the …
-
Quantifying the impacts of ozone pollution on the sustainability of pasture
… displayed a strong interaction with cutting, and intensive grazing could disproportionately increase the sensitivity of N-fixation in pasture to the effects of ozone. Flux-based ozone doseresponse relationships are constructed for biomass, total injury rates, N-fixation and forage quality in …
-
Social and ecological dimensions of non-native grass management in working landscapes
… non-native grasses using herbicide or intensive grazing is sometimes assumed to improve habitat, it is unclear how this control impacts grassland birds or their arthro-pod prey, both taxa of conservation concern. Furthermore, devising outreach strategies to support conservation on …
-
Quality and Yield Responses of Seven Warm Season Forage Grasses to Partial Shading in a Simulated Silvopasture in East Texas
… type. Forage produced was managed to simulate intensive grazing, with recognition of minimum and optimal grazing heights based on forage type. Data is presented on dry matter yield, as well as several nutritional parameters including mineral composition, <em>in vitro</em> true digestibility …
-
Changes in benthic marine macrophyte community structure in the Strait of Georgia: long-term and grazing responses
… investigated. 2) At Bath Island, a period of intensive grazing by sea urchins, Strongy locentrotus droebachiensis, during 1973 altered the community structure and provided an opportunity for a comparative study of macrophyte community change and regeneration at the two sites. 3) Community …
-
Evaluation of Mob Grazing and its Impacts on Soil Moisture and Temperature and Litter Decomposition in South Dakota
<p>Mob grazing is a type of management intensive grazing system that mimics natural grazing systems where high stocking densities are placed on the land for a short period of time. One way producers measure their success with this system is by the amount of trampled vegetation present after …
-
Biotic Responses on Typha-monodominant Semipermanent Wetlands To Cattle Grazing
… 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 Wildlife …
-
The Interaction of Arvicoline Rodents and Sheep in Norwegian Alpine Rangeland
… on vegetation and native animal communities. Intensive grazing by large mammals can have significant impacts on plant community composition, species diversity, and nutrient cycling and may also affect densities of small mammals. I used a set of experimental treatments to evaluate the impact of …
-
Going through the motions : the impacts of frequent fires and grazing pressure on reproduction of Montane grassland birds
… 2001 I examined the effect of fire frequency and grazing intensity on the density, breeding biology and nesting success of several grassland bird species that breed in the high altitude grasslands of Wakkerstroom, South Africa. I established study plots in heavily grazed and annually burned, …