Red meat from pasture : sustainable livelihoods for small mixed farmers in China's Yunnan Province : a thesis submitted in partial fulfilment of the requirements for the degree of Master in Applied Science in Agribusiness Management at Massey University, Palmerston North, New Zealand

China's pattern of food consumption is changing. The demand for high quality red meat is rapidly increasing, especially in the more affluent coastal regions. The pastoral livestock farmers in Southwest China have low and declining incomes, and operate in a highly uncertain environment. This environmental uncertainty is derived from the seasonal climate, land tenure policies, and a dealer-dominated supply chain in which information is scarce, ambiguous, and untimely. The researcher spent two years in China's Yunnan Province working on a pastoral development project. During this assignment, the researcher undertook a case study of the small, mixed livestock and cropping farmers involved in the project, together with an evaluation of alternative strategies for pastoral development and enhancing livestock production. The case study also involved an overview of agricultural extension and the red meat supply chain in the study area. The current farm production systems are environmentally, financially and socially unsustainable. Farm output is low and achieved inefficiently at considerable cost to future productive potential. Farmers are not investing in farm improvements because they lack confidence in their ability to generate a return from such investments. Confidence is low because farmers do not trust other supply chain participants, and they perceive a low level of control over the operating environment. This is resulting in a vicious cycle of unsustainability. There are numerous market opportunities emerging due to changes food consumption. Farmers have three broad strategic options for taking advantage of these opportunities: invest in technologies to raise output and quality, further process to add value and increase consumer acceptance of red meat and co-operate within the supply chain. The technologies extended as part of the development project were demonstrated to yield significant benefits in terms of production and profit. However, adoption has been low because many of the technologies did not consider local constraints, extension has not widely occurred and uncertainty in the operating environment did not encourage investment. For farmers to be able to successfully implement these strategies farmers need to be empowered and a more enabling environment created. This empowerment involves changing farmers' perception of locus of control, sharing control and supply chain participants learning about each other. Co-operation between farmers and the rest of the supply chain should provide benefits along the whole chain. A model for co-operative and sustainable development is proposed and limitations of this model are discussed. Title: Red Meat from Pasture: Sustainable Livelihoods for Small Mixed Farmers in China's Yunnan Province. Degree: Master of Applied Science in Agribusiness Management Author: Alan Kent McDermott Year: 2001 Keywords: Southwest China; pastoral livestock systems; supply chain management; sustainable livelihoods; trust; perceptions of control; extension of technology

DNA Methylation: A Timeline of Methods and Applications

DNA methylation is a biochemical process where a DNA base, usually cytosine, is enzymatically methylated at the 5-carbon position. An epigenetic modification associated with gene regulation, DNA methylation is of paramount importance to biological health and disease. Recently, the quest to unravel the Human Epigenome commenced, calling for a modernization of previous DNA methylation profiling techniques. Here, we describe the major developments in the methodologies used over the past three decades to examine the elusive epigenome (or methylome). The earliest techniques were based on the separation of methylated and unmethylated cytosines via chromatography. The following years would see molecular techniques being employed to indirectly examine DNA methylation levels at both a genome-wide and locus-specific context, notably immunoprecipitation via anti-5′methylcytosine and selective digestion with methylation-sensitive restriction endonucleases. With the advent of sodium bisulfite treatment of DNA, a deamination reaction that converts cytosine to uracil only when unmethylated, the epigenetic modification can now be identified in the same manner as a DNA base-pair change. More recently, these three techniques have been applied to more technically advanced systems such as DNA microarrays and next-generation sequencing platforms, bringing us closer to unveiling a complete human epigenetic profile

New Zealand Agribusiness Success: An Approach to exploring the role of strategy, structure and conduct on firm performance

This paper presents a framework to explore agribusiness success in New Zealand. The framework provides the basis for historical analysis. It draws on existing theory based on the structure-conduct-performance paradigm but expanded to take account of firm strategy and the analysis of value chains.Agribusiness, structure, conduct, performance, history, Agribusiness,

A review of Multi-Agent Simulation Models in Agriculture

Multi-Agent Simulation (MAS) models are intended to capture emergent properties of complex systems that are not amenable to equilibrium analysis. They are beginning to see some use for analysing agricultural systems. The paper reports on work in progress to create a MAS for specific sectors in New Zealand agriculture. One part of the paper focuses on options for modelling land and other resources such as water, labour and capital in this model, as well as markets for exchanging resources and commodities. A second part considers options for modelling agent heterogeneity, especially risk preferences of farmers, and the impacts on decision-making. The final section outlines the MAS that the authors will be constructing over the next few years and the types of research questions that the model will help investigate.multi-agent simulation models, modelling, agent-based model, cellular automata, decision-making, Crop Production/Industries, Environmental Economics and Policy, Farm Management, Land Economics/Use, Livestock Production/Industries,