Field And Laboratory Methods For Grassland And Animal Production Research
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Field and Laboratory Methods for Grassland and Animal Production Research by L. 't Mannetje,R. M. Jones Pdf
Considers a range of methods used by plant and animal production scientists to study grassland vegetation and animal performance. This volume replaces a previous title, ''Measurement of Grassland Vegetation and Animal Production'', published in 1978, but incorporates many new topics.
Grassland Ecophysiology and Grazing Ecology by Gilles Lemaire,J. Hodgson,A. Moraes,P. C. F. Carvalho,C. Nabinger Pdf
This text presents edited key papers from the International Symposium on Grassland Ecophyisiology and Grazing Ecology held in Curitiba, Brazil in August 1999. It considers how plants within grasslands respond to and are adapted to grazing animals.
Grasses and Grassland Ecology by David J. Gibson Pdf
This book is the most up to date and thorough account of the natural history of the plants that comprise the most important food crop on Earth, the grasses and grasslands.
This book introduces the various aspects of international farm animal protection and wildlife conservation through the lenses of food safety and environmental protection law. Bite-sized chapters focus on a wide range of topics from agrobiodiversity, fishing, and aquaculture to pollinators and pesticides, soil management, industrial animal production, and transportation, as well as international food trade. Animal welfare and biodiversity conservation sit at the core of the selected chapters, each one providing real-world examples to make the complex field easy to understand. Current developments including food safety modernization, blockchain, and COVID-19 considerations are addressed head-on. Farm Animal Welfare Law provides a primer for law school courses and masters’ programs, for practitioners, advocates, and animal enthusiasts alike. Through its emphasis on sustainable food production, this book offers a cutting-edge selection of evolving topics at the heart of the pertinent discourse.
Competition and Succession in Pastures by P. G. Tow,Alec Lazenby Pdf
This book describes how competition between plant species, and succession in plant ecosystems, operate in grasslands and grazed pastures, both natural and sown. It discusses how competition both affects botanical structure, productivity and persistence of pastures and is itself regulated by biological, environmental and management factors, such as grazing animals. The book also examines the ways in which competition and succession are analysed, evaluated and measured, and brings to the agricultural arena the considerable progress made in understanding the principles of competition from theoretical and experimental ecology.
Rangeland Stewardship in Central Asia by Victor R. Squires Pdf
This volume of 18 chapters is the work of more than 30 authors, many of whom are natives of the Central Asian region or are researchers who have dedicated a large part of their working lives to studying the development dynamics in this vast and fascinating region. The work focuses on the 20 years since the collapse of the Soviet Union in 1990. But it also traces the attitudes of land users to the land dating from before the late 19th century, when Russian conquest and colonization occurred, and through the upheavals caused by Soviet-style collectivization and sedentarization. The book is rich with new data presented in 68 easy to understand charts/graphs (many in color) and 50 Tables. Information was generated for this book by experts working in-country. It presents for the first time in English a digest of plethora of previously inaccessible Russian reports and scientific literature that will be invaluable for development agencies, including UN, World Bank, Asian Development Bank, Islamic Bank as well as to students of this vast and fascinating region who seek up to date and authoritive information.
GIS Applications in Agriculture, Volume Four by Tom Mueller,Gretchen F. Sassenrath Pdf
Conservation planning involves targeted management practices and land use decision-making based on careful analysis of landscape limitations in order to protect soil and water resources. Developing solutions to conservation planning is of worldwide interest due to anticipated population growth, growing demand of feedstocks for biofuels, decreasing
Ecosystem Function in Savannas by Michael J. Hill,Niall P Hanan Pdf
Fascinating and diverse, savanna ecosystems support a combination of pastoral and agropastoral communities alongside wild and domestic herbivores that can be found nowhere else. This diversity has made the study of these areas problematic. Ecosystem Function in Savannas: Measurement and Modeling at Landscape to Global Scales addresses some of the d
Nutrient Elements in Grassland by D. C. Whitehead Pdf
This book is an essential reference source covering the chemical elements that are nutrients for plants or grazing animals. It deals with the concentrations and transformations of these elements in soils, grassland plants, and ruminant animals, particularly cattle and sheep. For each element, the following data are given: forms occurring in soil, factors that affect availability and concentration, uptake and distribution in grassland plants, role in animal nutrition, amounts and forms excreted by grazing animals, and concentrations needed by ruminant animals.
AlimentaciÓN Del Venado Cola Blanca by Roque Gonzalo RamíRez Lozano Pdf
El venado cola blanca (Odocoileus virginianus) es un animal silvestre que habita prácticamente en todo el Continente Americano. En México, prácticamente en todo el país, excepto en la Península de Baja California. Tiene alrededor de 500,000 años en su forma actual y 20 millones de evolución. Económicamente, es considerado el trofeo de cacería mayor más importante en todo el mundo. Presenta dimorfismo sexual al mostrar diferencias de forma, coloración y tamaño entre machos y hembras. Tiene hábitos crepusculares, pueden encontrarse en grupos de 2 a 6 y hasta 15 individuos. Tiene un órgano conocido como vomeronasal. Es un órgano auxiliar del sentido del olfato que le da al venado un sexto sentido y que es usado principalmente durante el apareamiento, para detectar sustancias secretadas por las hembras. Tiene hígado, pero no tiene vesícula biliar. Su carne es magra y bajo contenido de colesterol. Es rumiante y herbívoro. Forrajea la vegetación para consumir hojas, brotes, frutos y semillas, así como hongos. El hábitat se encuentra prácticamente en todos los hábitats, siempre que estos le proporcionen suficiente refugio y alimento. No es común en las partes más secas y abiertas del matorral xerófilo ni en las partes más densas y húmedas del bosque tropical perennifolio. Los microbios en el rumen, además de que sintetizan las vitaminas hidrosolubles del complejo B y la K que es liposoluble, hacen posible que el venado obtenga nutrientes que no son disponibles a los animales no rumiantes y convierten nitrógeno no proteico a proteína bacteriana, rica en aminoácidos.
Grasslands of the World by Victor R. Squires,Jürgen Dengler,Limin Hua,Haiying Feng Pdf
This book begins with a brief account of the extraordinary sequence of events that led to emergence of grasslands as major vegetation formations that now occupy some of the driest and hottest and the highest and coldest on earth as well as vast steppes and prairies in more temperate climes. It is the story of grasses successfully competing with forests and woodlands, aided and abetted by grazing herbivores and by humans and their use of fire as a tool. It is a story of adaptation to changing climates and the changing biophysical environments. A major focus of the book is the Palaearctic biogeographic realm that extends over some 45 million km2 and thus more than 1/3 of the terrestrial ice-free surface on Earth. It comprises extensive grasslands of different types and origin, which can be subdivided into (1) natural grasslands with (1a) steppes (climatogenic in dry climates), (1b) arctic-alpine grasslands (climatogenic in cold climates) and (1c) azonal and extrazonal grasslands (pedogenic and topogenic) as well as (2) secondary grasslands created and sustained by human activities, such as livestock grazing, mowing or burning. Grasslands of the Palaearctic do not only form a major basis for the agriculture of the region and thus its food supply, but are also crucial for other ecosystem services and host a supra proportional part of the realm’s plant and animal diversity. To reflect that suitability of grasslands for biodiversity strongly depends on their state, we apply the term High Nature Value grassland to those natural grasslands that are not degraded (in good state) and those secondary grasslands that are not intensified (semi-natural). The situation in a variety of countries where grasslands are evolving under the influence of global climate change is also considered. Case studies are presented on Southern Africa, Eastern Africa, India, China, South America, North America and Australia. The concluding chapter examines a set of themes arising from the chapters that make up the bulk of this book. The following provide a focus: recent history of grassland biomes – brief recap of current thinking and recent trends with special reference to dry grasslands in the Palearctic regions; the current status of grasslands and germplasm resources (biodiversity) – an overview; management systems that ensure sustainability; how to recover degraded grasslands; socio-economic issues and considerations in grassland management; the impacts of environmental problems in grasslands such as future climate change and intensification and the problems/prospects facing pastoralists and other grassland-based livestock producers.