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This study attempts to identify factors responsible for determining differences in the productivity of cattle managed by communal and private livestock farmers in the southern region of Botswana during 1999/2000. It is hypothesised that herd productivity and investment in southern Botswana are higher on private ranches than on open access communal grazing land. This study is important because livestock, especially cattle, contribute significantly to the livelihood of farmers in Botswana. Cattle are a major source of meat, milk and draught power, and provide a store of wealth that protects against inflation and which can easily be converted into cash. Cattle production is also an important source of employment in the rural economy of Botswana. Furthermore, the export of beef is a major source of foreign exchange earnings, and cattle account for 80 percent of agriculture's contribution to Botswana's gross domestic product. A stratified random sample survey of communal and private livestock farmers was conducted in the southern region of Botswana from August 1999 to May 2000 with the assistance of four enumerators. The sample survey data were used to compute descriptive statistics and to estimate the parameters of a block recursive regression model. The model postulated relationships between agricultural credit, investment in fixed improvement, investment in operating inputs and herd productivity. Some of the equations are estimated with Ordinary Least Squares (OLS) and some with Two-Stage Least Squares (2SLS) to account for likely correlation between endogenous explanatory variables and the error term. Descriptive statistics show that levels of investment and herd productivity are higher on private farms than on open-access communal grazing. Private farmers are also better educated, more liquid, and have larger herd sizes, but do not differ from their communal counterparts in terms of age, gender, race or household size. The regression results show that (a) respondents with secure tenure and larger herds use more agricultural credit than those who rely on open access communal grazing land to raise cattle; (b) secure land tenure, higher levels of liquidity and use of long-term credit promote investment in fixed improvements to land; (c) liquidity from short-term credit and wage remittances supports expenditure on operating inputs; and (d) herd productivity increases with greater investment in fixed improvement and operating inputs. Herd productivity is therefore positively (but indirectly) influenced by secure land tenure. It can therefore be inferred that government should (a) uphold private property rights to land where they already exists; (b) privatise open access grazing to individual owner operators where this is politically, socially, and economically feasible; and (c) where privatisation to individuals is not feasible, government should encourage users to convert the grazing into common property by subsidising the costs of defining user groups and the boundaries of their resources, and enforcing rules limiting individual use of common property. This first-step in a gradual shift towards more secure tenure should be followed by the conversion of user groups to non-user groups organized along the lines of investor-owned firms where members exchange use rights for benefit and voting rights in a joint venture managed by an expert. / Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2006.

A survey of 186 commercial farmers from three Zobas (provinces) of Eritrea was conducted between November 2002 and February 2003 to examine farmers' perceptions of risk, to determine the most important sources of risk affecting farmers' decisions, to identify managerial responses to risks and to identify information use. As part of the main survey, 74 randomly selected commercial dairy farmers were also interviewed to identify factors that affect the purchase of livestock insurance. Findings show that whilst some risks are of concern to most farmers, others are more enterprise or region specific. In general, changes in weather, changes in the labour force, and diseases, pests and weeds were identified as being important sources of risk for most farmers. Factor analysis was used to analyse heterogeneity amongst farmers' perceptions of various risks. Results indicate that programmes designed to assist farmers in Eritrea to manage production and price risks should vary between enterprises and between regions. Policy implications of this research include that the government of Eritrea should disseminate information to clarify agricultural tax and land policies, and its demobilization and rehabilitation programmes. Relaxing foreign exchange rate controls may reduce price risks in agricultural input markets. Increased use of information sources, choice of production system, keeping production records, and diversification of farm enterprises were found to be the main production responses to risk. Important marketing responses included indirect selling (e.g. to the grain board or wholesalers) and use of marketing information, while important financial responses were keeping financial records and investing off-farm. Factor analysis was used to analyse heterogeneity amongst farmers' managerial responses to risk. Results indicate that farmers respond differently to different types of risk attributed to enterprise type. Policy implications of this research include that the government of Eritrea should create a more conducive environment for business, train farmers with appropriate record keeping skills and improve road and communication infrastructure. Results also show that farmers' sources of information vary according to farm type. While poultry and dairy farmers depend largely on information provided by the government, horticulture and crop farmers rely mostly on their own sources of information or non-governmental sources. Policy recommendations include additional and appropriate record-keeping training for farmers, improving the road and communication infrastructure, promoting commercial information providers, and periodically publishing an agricultural magazine by the Ministry of Agriculture in a way that farmers can understand the information. The results of a logit model of the adoption of livestock insurance indicate that formal education of the farmer and the farmer's awareness of livestock insurance increase the probability of insurance adoption, whereas farming experience, poor location and use of alternative risk management strategies, such as off-farm investments and farm enterprise diversification, reduce the probability of livestock insurance adoption. Further insight into the socioeconomic factors influencing farmers' adoption of livestock insurance may assist policy makers and the National Insurance Corporation of Eritrea in their future plans. Results of this study have some policy implications, such as the need for a variable rather than fixed insurance premium, improving the know-how of farmers concerning risk assessment, improving Zobas' infrastructure and a need for a thorough study to be conducted on the demand for agricultural insurance in Eritrea. / Thesis (M.Sc.Agric.)-University of KwaZulu-Natal, Pietermaritzburg, 2004.

The backbone of this study was a systems thinking based analysis of the management and control of predators as practiced in South Africa since the advent of Europeans in 1652. The first bounties were introduced for a variety of animal species in 1656. Many species became labeled as vermin and were persecuted, often with the intention of eradication. A variety of controls have been applied, of which many have not kept pace with contemporary thinking or technology, and which by simply killing predators fail to address the crux of the issue of predator – livestock conflict. Many of the methods used cannot be applied to specifically remove an individual damage-causing animal. Considerable collateral ecological damage is inflicted by the killing of animals regarded as innocent bystanders. The objective of the analysis was to highlight the futility of temporary solutions which fail to resolve the conflict in the long term. These quick fixes frequently perpetuate an ecological imbalance which exacerbates the predator – livestock conflict. The analysis used raw data from a questionnaire survey conducted by the Poison Working Group of the Endangered Wildlife Trust (EWT-PWG) (2003). The EWT-PWG intended to assess pesticide abuse as toxicant for predators by farmers, and to identify all control methods used. The data forthcoming was Cartesian in nature and a fixed snap-shot in time. This study sought to identify the root cause of the conflict by applying systems thinking which added the dimension of cause and effect interrogation. The study categorised and described predator conflict management methods as lethal or preventative, and assessed each category in archetypal terms from a systems thinking perspective. It also sought to identify leverage points, or small changes which have profound effects, to stimulate a change in approach to humanpredator conflict management. In order to assess and illustrate the positive change brought about by application of preventative methods, a small group of farmers who had initiated changes in their predator conflict management over the five years subsequent to the EWTPWG survey were selected from the original group for reassessment. Through evaluation of predator conflict management methods from a systems thinking perspective, and by probing learning processes, the shortcomings or failure of inappropriate management responses to conflict situations were shown to exacerbate conflicts. Contrarily, it was illustrated that application of systems thinking and a process of addressing the root cause of conflict issues in predator conflict management, was a longer term solution. The study illustrated that application of long term proactive prevention and conflict avoidance principles, can offer long term solutions for predator conflict managers. / Thesis (M.Env.Dev.) - University of KwaZulu-Natal, Pietermaritzburg, 2008.

Long-term trends in rangeland sward dynamics (species composition, structure, productivity) were examined on three trials established between 1989 and 1996 at Kokstad Research Station in the Highland Sourveld, while animal performance (average daily gain and gain per hectare) was examined on two of the trials. The region enjoys moderate rainfall of 782mm per annum, with hilly topography, and soil depths ranging from >1m to <20cm. The first trial was labelled the simulation trial, as it simulated a four-paddock rotational grazing system, in which animals spent two weeks in each of three paddocks while the fourth was rested for the entire season. The rested paddock was rotated each year. The trial tested two stocking rates (0.5 and 1.0 AU.ha-1) at five ratios of cattle to sheep, ranging from cattle only to sheep only. The trial was unreplicated, and was established in 1989 on flat topography with deep soils. The second trial (labelled the flat two-paddock trial) was established in 1992 adjacent to the simulation trial. The trial examined two stocking rates of sheep weaners (0.5 and 1.0 AU.ha-1 seasonally) in a continuous grazing two-paddock system, in which one paddock of each treatment was burned and grazed continuously while the second paddock was rested, to be burned and grazed in the following season. The trial was replicated twice. The third trial (labelled the steep two-paddock trial) mimicked the grazing system of the flat trial, but was located on a steep (c. 20%) West-facing slope with shallow soils. The trial incorporated two additional treatments: an intermediate stocking rate of 0.7 AU.ha-1 and an ungrazed treatment. Species composition of the sward was recorded biennially on all trials using the nearest plant-point technique with between 200 and 800 points per paddock. Sward standing crop was measured in the rested seasons of the simulation trial and at the beginning, middle and end of each season in one paddock of each two-paddock treatment of the two-paddock trials. In the two-paddock trials, sward standing crop was measured within and outside permanently placed exclosure cages. Animals were weighed fortnightly. The response of species to grazing pressure or animal type was mediated by soil depth and slope, as well as the grazing system. Tristachya leucothrix declined on all grazed treatments. The ungrazed treatments remained relatively stable over ten years. On the low stocking rate treatments of the steep trial, unpalatable species increased, but so did Themeda triandra. The heavily grazed treatment of the steep trial was surprisingly stable, with little significant change in relative abundance of key species other than an increase in the unpalatable Alloteropsis semialata and decline in T. leucothrix. The medium stocking rate treatment on the steep trial showed significant shifts in relative abundance of key species, with declines in T. triandra and T. leucothrix and increases in A. semialata and the unpalatable wiregrass D. filifolius. These trends were not repeated on the flat trial, however, with T. triandra and A. semialata increasing and all other key species declining or remaining stable. On the simulation trial, species responded largely unpredictably with species abundances often fluctuating considerably over time. Microchloa caffra and A. semialata increased substantially in both the low and high stocking rate sheep-only treatments, with a concurrent decline in T. triandra in the high stocking rate but not the low. Changes in composition over time, as measured by Euclidean distance, showed that shallow soils, high stocking rates and a high proportion of sheep caused greater shifts in species composition over time than deep soils, low stocking rates or more cattle. Three treatments, the sheep-only treatments on the simulation trial and the high stocking rate on the steep trial, showed an initial rapid shift in composition over about 6 years, before stabilising in subsequent seasons. The flat trial showed no substantial shift in composition over time. This general pattern of change was confirmed by Non-Metric Multidimensional Scaling. On the simulation trial, total standing crop was influenced by stocking rate and by the proportion of sheep in most seasons. On the two-paddock trials, increasing stocking rate significantly reduced sward vigour, and vigour declined over time. Stocking rate reduced total standing crop on both trials at the end of the 2004/05 seasons and the crop of unpalatable species on the steep trial. Total palatable plants were unaffected by stocking rate on both trials. The classic Jones-Sandland model of animal performance as influenced solely by stocking rate was not supported. Sheep performance was influenced by stocking rate and the interaction of stocking rate and seasonal rainfall. There was no difference in average daily gain between treatments over time, and hence cumulative animal production per hectare increased with increasing stocking rate. Animal performance was possibly influenced by many factors beyond the scope of this study, including the effect of predator attacks on surviving animals, and resource availability such as shade and shelter and high-production patches in some paddocks and not others. Scale effects on ecology are being increasingly investigated and a meta-analysis of this type shows that, even in one research farm, slight differences in management and environment can have significant effects on plant and animal responses to grazing. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2010.

Many early anthropological studies treated pastoralist populations as egalitarian, however there is considerable variation in the resources available to individual households. This thesis considers how resources influence the subsistence system of the pastoral Datoga of Lake Eyasi. The two categories of resources considered are wealth and labour. The labour available to Datoga households does not influence the herding strategies of those households. In turn, the herding strategies do not affect the dynamics of cattle herds. This is because households that are short of labour can arrange for their animals to be herded by members of different households, and there are no discernible costs associated with this. Wealth, defined by livestock holdings, can be measured either as total household wealth, or as wealth per capita. These are conceptually distinct. Among the Datoga, households that are wealthy in terms of total livestock holdings, are also wealthy in terms of wealth per capita, but not proportionally more so. Once households have about five livestock units per capita, any increase in household wealth is used to attract new people to the household, rather than to increase the wealth of existing household members. For many aspects of the production system overall household wealth and wealth per capita have a similar effect, but this is not always the case. In some instances overall household wealth can explain variation between households, whereas wealth per capita cannot. This occurs when the absolute number of animals belonging to a household is important. In terms of provisioning the household and household economics, per capita wealth explains more of the variation between households. Overall the Datoga are struggling to survive. They have been alienated from more fertile areas, and consequently they are poor, and herd productivity is low. This is due to the low reproduction rate of cattle, and the high commercial offtake rate of both cattle and small stock. The high commercial offtake rate is driven by subsistence needs and most income is used to buy grain and veterinary products. However, there is considerable variation between households, and compared to poor households, wealthy households have a comparatively low offtake rate of livestock, in terms of both mortality and sales. Consequently, they are managing to retain their livestock holdings, or in a few cases to increase the size of their herds. However, wealthy households are in the minority, and the majority of households are caught in a declining cycle of poverty, and will eventually be forced to drop out of the pastoral system.

Thesis (MSc)--Stellenbosch University, 2015. / ENGLISH ABSTRACT: Rangelands in the semi-arid and arid regions of the world support livelihoods through their provision of multiple goods and services. Livestock production, for example, occurs in rangelands both as extensive ranching under freehold tenure and as collective ranching under communal tenure systems. However, the sustainability of rangelands is threatened and has been a major concern this century, leading to a variety of interventions. Holistic management (HM) is one such example, designed by its proponents as a panacea to halt degradation and, recently, climate change effects in the rangelands of Africa and beyond. HM has been implemented in the Hwange Communal Lands (HCLs) of Zimbabwe since 2010. In principle, the programme is aimed at restoring degraded watersheds and croplands through utilising properly managed livestock. To achieve this, two principles are promoted under HM, namely (i) holistic planned grazing (HPG) and (ii) animal impaction of crop fields. However, the effects of HM on the livelihoods of its beneficiaries currently are poorly understood. In order to address this lacuna, this study aimed to determine both the intended and unintended effects of a community-based land restoration programme called Holistic Land and Livestock Management (HLLM) in the HCLs of Zimbabwe on the livelihoods of its beneficiaries through a conceptual framework that combined an actor-oriented livelihoods approach with concepts of everyday politics and resistance. This was done by exploring the impact of HLLM on the six types of farmers’ assets, adoption patterns, farmers’ reactions to the introduction of HLLM, and challenges preventing farmers from adopting HLLM. Case studies employing a qualitative and exploratory research design were undertaken in three communities that were selected purposively from a total of 18 communities in which the HLLM programme had been promoted by the Africa Centre for Holistic Management (ACHM) in order to discover different perspectives on the effects of the programme on the livelihoods of its beneficiaries. The study employed qualitative Participatory Rural Appraisal tools, focus group discussions, participant observation, document analysis, and key informant and semi-structured interviews. These lines of enquiry enabled triangulation and cross-checking of information to enhance the reliability and validity of the research findings. The study showed that adoption levels were disappointingly low across all the study sites. Several challenges, including livestock diseases, predation, cultural stigma, labour constraints and witchcraft fears, were among the barriers explaining the low rate of adoption in the HCLs. The findings reveal that the farmers were concerned more with immediate problems, especially lack of water, than with land degradation, which is the primary focus of HLLM. Thus the farmers responded by complying, accommodating and covertly resisting the ACHM’s efforts to implement HLLM in order to suit their needs, using creative everyday politics and resistance. The study concludes that, although HLLM is required in such semi-arid environments, it is not sufficient to sustain rural livelihoods in its current state. While the main focus of HLLM is to improve the natural capital (i.e. restoring degraded watersheds), it should be complemented by and aligned with the farmers’ other development priorities, especially those relating to water / AFRIKAANSE OPSOMMING:Weiveld in die halfdor- en dor gebiede van die wêreld ondersteun menslike lewensbestaan deur die verskaffing van ’n verskeidenheid goedere en dienste. Veeproduksie, byvoorbeeld, kom in weivelde voor as beide ekstensiewe veldbeesboerdery onder grondbesit en kollektiewe veldbeesboerdery onder gemeenskaplike eiendomsreg. Die volhoubaarheid van weiveld word egter bedreig en het in hierdie eeu ’n groot bron van kommer geword, wat gelei het tot ’n verskeidenheid ingrypings. Holistiese bestuur (Holistic management (HM)) is een van hierdie en is deur sy voorstanders ontwerp as ’n wondermiddel om degradasie, en meer onlangs die effekte van klimaatsverandering op die weivelde van Afrika en verder, stop te sit. HM is reeds sedert 2010 in die Hwange gemeenskaplike gronde (HGG’e) in Zimbabwe geïmplementeer. In beginsel is die doel van die program om gedegradeerde waterskeidings en landerye te herstel deur gebruik te maak van behoorlik bestuurde vee. Om dit te bereik word twee beginsels onder HM bevorder, naamlik (i) holisties beplande weiding (holistic planned grazing (HPG)) en (ii) dier-impaksie van landerye (animal impaction of crop fields). Die effekte van HM op die lewensbestaan van sy begunstigdes word tans egter swak begryp. Om hierdie leemte aan te spreek, was die doel van hierdie studie om die bedoelde en onbedoelde gevolge van ’n gemeenskapsgebaseerde grondherstelprogram (Holistic Land and Livestock Management (HLLM)) in die HGG’e van Zimbabwe op die lewensbestaan van die begunstigdes te bepaal deur middel van ’n konseptuele raamwerk wat ’n akteur-georiënteerde lewensbestaansbenadering met konsepte van alledaagse politiek en weerstand gekombineer het. Dít is gedoen deur die impak van HLLM op ses soorte van bates wat boere het, hulle aannemingspatrone, boere se reaksies op die invoering van HLLM, en uitdagings wat verhoed het dat boere HLLM aanneem, te ondersoek. Gevallestudies met gebruik van ’n kwalitatiewe en verkennende navorsingsontwerp is in drie gemeenskappe onderneem wat doelbewus uit ’n totaal van 18 gemeenskappe waarin die HLLM-program deur die Africa Centre for Holistic Management (ACHM) bevorder word, geselekteer is om verskillende perspektiewe van die effekte van die program op die lewensbestaan van die begunstigdes te ontdek. Die studie het kwalitatiewe Deelnemende Landelike Takseringsgereedskap (Participatory Rural Appraisal), fokusgroepbesprekings, deelnemerwaarneming, dokument analise en sleutel-informant en semi-gestruktureerde onderhoude gebruik. Hierdie ondersoeklyne het triangulasie en kruiskontrole van die inligting moontlik gemaak, wat die betroubaarheid en geldigheid van die navorsingsbevindings verhoog het. Die studie toon dat aannemingsvlakke teleurstellend laag was in al die studieliggings. Verskeie uitdagings, insluitend veesiektes, predasie, kulturele stigma, arbeidsbeperkings en vrese vir heksery was onder die hindernisse wat die lae aannemingstempo in die HGG’e verklaar. Die bevindinge wys dat die boere meer besorgd was oor onmiddellike probleme, veral die tekort aan water, as oor grondagteruitgang, wat die vernaamste fokus van HLLM is. Die boere het dus gereageer deur instemming, aanpassing en onderlangse weerstandbieding tot die ACHM se pogings om HLLM te implementeer om sodoende hulle eie behoeftes te pas deur kreatiewe alledaagse politiek en weerstand te gebruik. Die studie kom tot die gevolgtrekking dat hoewel HLLM in sulke halfdor omgewings nodig is, dit nie in sy huidige staat voldoende is om landelike lewensbestaan te onderhou nie. Hoewel die vernaamste fokus van HLLM is om die natuurlike kapitaal te verbeter (m.a.w. deur gedegradeerde waterskeidings te herstel), moet hierdie rol gekomplementeer word deur en belyn word met die boere se ander ontwikkelingsprioriteite, veral dié wat verband hou met water.

Depuis les années 1990, le secteur de l’élevage au Vietnam subit des transformations rapides et profondes. Les productions de viande et de lait sont passées d’un système d’élevage familial intégré aux activités agricoles à un mode plus intensif et largement industrialisé. Les grandes exploitations capitalistiques se substituent progressivement à la petite paysannerie. Cette évolution soulève un certain nombre d’enjeux spatiaux. Le développement des villes, l’implantation des usines d’alimentation animale dans les campagnes, la relocalisation des bassins de production et l’essor de la production de maïs entrainent une réorganisation complète de la géographie de l’élevage au Vietnam. Cette dynamique spatiale est largement méconnue alors même qu’elle s’accélère depuis l’entrée du pays dans l’OMC en 2007. Cette thèse s’intéresse en particulier à trois districts – Thong Nhat, Mai Son et Ba Vi – dans lesquels l’élevage est une composante majeure du développement local. Les principaux résultats de cette thèse montrent que la concentration spatiale des systèmes d’élevage industriel dans un nombre réduit de régions est de fait organisée par un partenariat étroit entre autorités politiques et firmes privées qui privilégient les bénéfices économiques de cette industrialisation. Cependant, les autorités locales et les firmes impliquées peinent à prendre en compte les préjudices à moyen-terme de l’agglomération des systèmes de production sur la durabilité des anthroposystèmes. La gestion des milieux apparait laissée à la charge des communautés locales, et les fonctions de l’agriculture évoluent progressivement vers le recyclage des externalités du système d’élevage industriel. / Since the 1990’s, livestock sector in Vietnam has been deeply changing. Meat and milk productions are mouving from a mixed farming system towards a more intensive and industrialized production model. Concentrated animal feeding operations are progressively replacing small-scale livestock farming. This transition raises specific spatial issues. Expansion of urban areas, location of feed mills in rural areas, relocation of intensive production areas lead to a complete reorganization of the geography of livestock sector in Vietnam. This spatial dynamic is becoming an issue, especially since Vietnam has joined WTO in 2007. This thesis focuses on three districts – Thong Nhat, Mai Son et Ba Vì – where livestock plays a major role in local development. We show that spatial concentration of industrial production systems occurs in a limited number of regions. This dynamics appears to be organized by a close partnership between local authorities and private firms, with a focus on economic benefit. However, those stakeholders seem not to be in condition to manage all medium term impacts of this concentration on anthroposystem sustainability. Most of the challenges related to the Environmental management of industrial livestock systems remains in the hands of local communities. The role of agriculture progressively evolves towards the recycling of industrial livestock systems effluents.

This thesis deals with the evaluation of noise exposure in the agricultural cooperative Hosín ? Dobrejovice. The aim of this work was to measure noise levels in the dairy barn area and its surroundings, during these processes work: milking, feeding, removal of excrement, bedding etc. Measurements were carried out in summer and autumn. During the measurement noise was the largest source of agricultural equipment. The results revealed that noise pollution resulting from the operation of agricultural cooperatives Dobrejovice is fair and negative influence on noise pollution does not occur.

This theses fokus on the enviromental impact of livestock raising cycle (cattle, pigs and poultry). Energetical costs and emissions caused by livestock fattening are counted including processing and transport of the final product ? meat. Conventional and organic farming were compared as well as different forms of housing. SIMA Pro software tool was used for obtaining the emission load. The aim of the work was to find which form of livestock raising has the least environmental impact. This work was created in the European Union internatiponal project M00080-EUS-AT-SUKI Sustainable Kitchen focusing on the emission load of substantial links of vertical production chain.