The ethanol industry in Western Canada has seen significant growth in recent times spurred on mainly be environmental considerations. For a region with substantial grain production, increased prices from additional demand by the biofuel industry may inure to the benefit of grain farmers and land owners in the long term. The livestock industry however remains in a complex position facing the possibility of higher feed costs on the one hand and potential savings in feed cost on the other, with the availability of distillers grains- a by-product from ethanol production. The sectorial implications for the livestock sector could also be diverse and dependent upon the capacity to incorporate the distillers grains into the different feed rations. There is also the possibility of a spill-over effect from the US distillers grains market. This study therefore sought to complement current nutritional research by providing an economic perspective of the impact of distillers grains on the livestock industry in Western Canada. Focussing primarily on the beef cattle and hog industries, the study applied both linear programming and time-series techniques to assess potential benefits and costs. Potential positive economic benefits were observed for the inclusion of wheat and corn distillers grains with the former having a higher economic value in the high-protein feed segments.<p> Dependent on market factors such as the price of substitute feeds, exchange rates and transportation considerations, the magnitude of these savings could range between $7.29 and $0.34/tonne. The study recommends an understanding of these dynamics in order for livestock and ethanol producers to derive mutual benefits from the fledging biofuel industry in the Western plains.

Because of an ever-increasing threat of foreign animal disease outbreaks in the United States, there is a desire to develop strategies to prevent the occurrence of a foreign animal disease and control an outbreak if it does occur. Infectious disease models have been developed and are being used to determine reasonable mitigation strategies. However, little information is available concerning premises characteristics and movement of animals in extensively managed livestock areas. Hence adaptation of these models to areas where there is low livestock density is not easy. We collected empirical data, via mail out surveys, from an extensively managed livestock area. This will aid in improving the results of infectious disease models in these areas. In contrast to the intensively managed livestock that have previously been modeled, this study has shown that in areas of low livestock density, multiple livestock types often are managed on the same premises. Direct contacts, facilitated through the planned movement of animals, appear to have a greater seasonality in extensively managed areas as compared to intensively managed areas. Furthermore, wildlife contacts are likely and of potential importance. The results of this study add to the knowledge base used to model the spread of infectious disease in extensively managed livestock populations. Seasonal changes in animal densities and contact rates may impact the results of the models. Additionally, the effect of multiple livestock types on premises should be considered when the expected spread of disease is modeled in extensive livestock areas.

Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains vii, 64 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 48-63).

This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.

This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.

This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.

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Current discourse regarding the use and management of natural resources in the drylands of sub-Saharan Africa is inspired by three issues: 1) the growing emphasis on strengthening 'community-based' management of natural resources as a means of combining resource conservation with improvements in livelihoods; 2) continuing debate concerning the replacement of communal forms of land management with systems of private tenure; 3) and the widespread assumption of environmental 'degradation' and 'desertification' caused by the land-use practices of African livestock farmers. The way these areas of debate are interpreted affects policy and development intervention relating to the management and conservation of dryland natural resources. In relation to these issues, this thesis has two primary aims: 1) to analyse patterns and determinants of natural resource-use and management by Khoe-speaking Damara farmers in and north-west Namibia; 2) to assess the ecological implications of this resource-use in the context of the unpredictable variations in primary productivity characteristic of dryland environments. A combination of quantitative and qualitative anthropological and ecological techniques are employed to meet these objectives. The use of gathered non-timber products for food and medicine was monitored in 7 repeat-surveys over an 18 month period for a sample of 45 households comprising 2017 individual 'diet-days'. Statistical analysis suggests that food resources are consumed when abundant rather than as dry season supplements, that wealth is a poor predictor of gathered resource-use and that the use of natural resources is remarkably resilient given the disruptive effects of land alienation during this century. The utilisation of timber for fuel and building-poles was quantified at the household level and compansons with equivalent data from rural societies in more humid environments suggests conservative use of these resources. Qualitative data emphasise the continuing relevance of culturally-informed management practice relating to the use of natural resources. With regard to the second research objective, woody and herbaceous vegetation datasets were compiled, the former comprising 2760 plant individuals in a stratified sample of 75 transects and the latter consisting of 48 qradrats, half fenced to exclude livestock, in which herbaceous vegetation was monitored over two growing seasons. A number of standard ecological variables, including patterns in community floristics, diversity, cover and population structure, were used to explore the prediction that concentrations of people and livestock cause measurable impacts on vegetation around settlements. Statistical analysis suggests that effects of settlement are extremely localised and are within the range of variability shown by these measures over larger spatial scales, and that between-year variability in herbaceous vegetation dominates that measured both between- and within-sites. The research results indicate that current understanding of local resource-use practices in northwest Namibia is constrained by two conceptual influences: 1) a misleading colonial ethnography which continues to inform debate and interventions regarding the use and management of natural resources, operating to deny the present-day validity of local ecological knowledge and practice; 2) a temperate-zone ecology which focuses on density-dependent interactions between the biotic components of ecosystems, and plays-down the role of unpredictable abiotic factors, particularly rainfall, in driving a continuing dynamic of non-equilibrium variability in arid environments.

This thesis is a sociological exploration of how people involved in commercial and hobby livestock production, in Northeast Scotland, make sense of their relations with livestock, from birth to slaughter. I carried out an ethnographic study that combines fieldwork and unstructured interviewing to elicit how mart workers, auctioneers, vets, farmers, stockmen, hobby farmers and slaughter workers regard and interact with livestock. Although livestock are the raw materials of production, I show that the commodity status of livestock is variable and that people's relationships with livestock are complex, dynamic and ambiguous. One of the main reasons for ambiguity is that livestock are sentient and social begins: they have the capacity to engage in social relations with each other and with those who work closest with them. In effect, livestock are commodified sentient beings but to draw attention to people's difficulty in classifying and relating to them, I suggest they are sentient commodities. I argue that people's attitude, feeling and behaviour, towards livestock is systematically related to the place they, and their animals, occupy in the commercial and non-commercial production process. For instance, breeding animals are more likely to be regarded as individuals whilst slaughter animals are anonymously processed as part of a de-individualised batch. Similarly, people attend to express varying degrees of emotional attachment to livestock at the breeding end of the process and varying degrees of emotional detachment towards livestock destined for slaughter. Any animals, however, that requires additional handling or deviates from the routine is included to stand out from the herd, will acquire more meaning for the worker, and will become more than 'just an animal'. People who work with livestock are therefore faced with the challenge of negotiating the contradictory demands of being empathetic carers and economic producers of livestock.