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Author: R. A. Leng
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Science
Languages : en
Pages : 124
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Book Description
Author: R. A. Leng
Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Science
Languages : en
Pages : 124
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Book Description
Author: Andrew W. Speedy
Publisher: Mitchell Beazley
ISBN:
Category : Nature
Languages : en
Pages : 364
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Book Description
Fodder trees and fodder shrubs have always played a significant role in feeding domestic animals. In fact, trees and shrubs are increasingly recognized as important components of animal feeding, particularly as suppliers of protein and especially in harsh environmental conditions. In such situations, the available grazing is not generally sufficient to meet the maintenance requirements of animals, at least for part of the year. This occurs, for example, in some mountainous regions and in the dry tropicswhere the grazing is also sometimes very degraded. Thus, in extensive animal production systems in the dry areas of Africa, it is generallye stimated that ligneous materials contribute up to 90% of production and account for 40-50% of the total available feed. Such figures illustrate the existing and urgent need not only for better knowledge but also for better use of such potential, particularly in the context of environmental degradation which is affecting our planet. On the other hand, in the humid tropics of Latin America, the South-cast Asia and Africa, foddersfrom trees and shrubs from leguminous species - are beginning to be utilized more dietary nitrogen supplements for ruminants. In this respect, new a significant move to look for new sources of protein from shrubs. However, given the increasing demand for forage and availability of low quality basal feed materials which require protein supplementation, high protein fodders from leguminous trees and shrubs could have a much more significant role in animal feeding systems throughout the developing world. In this respect, there is a need for more research to develop technically viable solutions. These solutions must also be economically and socially acceptable; they must preserve natural resources and protect the environment. In other words, the challenge is the sustainable development of fodder trees and shrubs.
Author: D. A. Flores
Publisher: Xlibris Corporation
ISBN: 1479765376
Category : Science
Languages : en
Pages : 122
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Book Description
A monograph collection on various topics with implications on new or possible advances with ligno-cellulose research in regards to animal feeding and also lending itself to bioenergy feedstock. It is an informative discussion for the research scientist, and in particular, the specialist in ruminant nutrition covering such topics as follows. Enzyme technology, applied to crop post-harvest technology, with novel microbial anaerobic lignases, aerobic lignases and other extracellular fibrolytic enzymes (EFEs), boosting water-soluble carbohydrate (WSC) content in new tropical forage-type feeds, action of proteases in plant feed material and digestion, lowering lignin content and use of lacasse for bio-bleaching lignocellulose. Feed resources discussed, in particular in Asia, including sugarcane and use of bagasse and tops, grasses and legumes, with resources for food and feed farming systems and legume browse tree and shrubs for feed. The issues of various pre-treatments and crop improvements with biotechnology and digestion are discussed.
Author: Nouhoun Zampaligre
Publisher: Cuvillier Verlag
ISBN: 3736942508
Category : Science
Languages : en
Pages : 123
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Book Description
Kurzbeschreibung Aufgrund der starken Abhängigkeit von Niederschlägen und natürlichen Ressourcen gelten Ackerbau und Viehzucht im subsaharischen westlichen Afrika als besonders anfällig für klimatischen Wandel. Verstärkt wird dies durch das geringe Anpassungsvermögen der lokalen Bauern und Viehzüchter an die neuen Umstände. Das Ziel der vorliegenden Arbeit war daher die Untersuchung der zu erwartenden Einflüsse zukünftiger Klimaveränderungen auf die Tierernährung und Weidenutzung in der südlichen Sahelzone und der nördlichen und südlichen Sudanzone in Burkina Faso. Um dies zu erreichen, wurden von 2009 bis 2010 drei Studien durchgeführt; dafür ausgewählt wurden die Dörfer und Dorfgebiete (100 km²) von Taffogo (südliche Sahelzone), Nobere und Safane (nördliche Sudanzone) und Sokouraba (südliche Sudanzone). Die Wahl von zwei Dörfern in der nördlichen Sudanzone war begründet durch die Dichotomie zwischen intensiver landwirtschaftlicher Nutzung und hoher Bevölkerungsdichte in Safane und geringer ackerbaulicher Nutzungsintensität in der Pufferzone zwischen dem Dorf Nobere und dem Nationalpark Pô. Unter Verwendung globaler Navigations- (GPS) sowie Geoinformationssysteme (GIS) wurden räumliche und zeitliche Veränderungen in der Weidenutzung sowie im Fressverhalten von Rindern, Schafen und Ziegen in den vier Dörfern untersucht. Hierzu wurden pro Dorf jeweils drei Herden der genannten Haustierarten über einen Zeitraum von einem Jahr beobachtet (Kapitel 2). Die längsten Weidewege (km/Tag) waren während der heißen Trockenzeit (März – Mai) festzustellen. Schafe (18,8) und Rinder (17,4) legten dabei signifikant größere Distanzen zurück als Ziegen (10,5; p0,05). Die tägliche Weidedauer lag zwischen sechs und elf Stunden und war bei den Rindern länger als bei den kleinen Wiederkäuern (p0,05). Artunabhängig wurden 52–72% des Weidetages mit der Aufnahme von Futter verbracht. In der südlichen Sahelzone verbrachten die Herden mehr Zeit pro Tag auf den Weideflächen und legten zudem größere Distanzen zurück als in den beiden sudanischen Zonen (p0,01); die effektive Fresszeit war dagegen in der südlichen Sudanzone am längsten (p0,05). Eine proportionale Abnahme von Ruhephasen war während der Regenzeit (Juni - Oktober) im Vergleich zur kühlen (November - Februar) sowie heißen Trockenzeit zu beobachten (p0,05), während gleichzeitig der proportionale Anteil der Marschzeit zunahm. Unabhängig von der Jahreszeit erfolgte die Futteraufnahme in der südlichen Sahelzone bei allen drei Arten signifikant häufiger in bewaldeten Bereichen (Baumdeckung 5-10% oder Strauchdeckung 10%), während sie sich in den beiden sudanischen Zonen vornehmlich auf Waldflächen (Baumdeckung 10%) konzentrierte. Daraus lässt sich ableiten, dass bei gleichzeitiger Ausdehnung von landwirtschaftlich genutzten Flächen verbleibende Waldinseln und baumreiche Bereiche, einschließlich älterer (und damit buschbestandener) Brachflächen wertvolle Weidegründe für die lokalen Wiederkäuerherden darstellen. Es sollten daher Maßnahmen ergriffen werden, um dem Rückgang solch bewaldeter Bereiche entgegenzuwirken und gleichzeitig den Schutz sowie die (Wieder-)Anpflanzung dürretoleranter Futterbäume aktiv zu fördern. In einer weiteren Studie (Kapitel 3) wurde die Futterselektion der genannten Herden weidender Rinder und kleiner Wiederkäuer untersucht, und 75 Tierhalter zum Weideverhalten ihrer Tiere sowie zur Behandlung von Tierkrankheiten mit traditionellen pflanzlichen Medikamenten befragt. Ziel war es, die Auswirkungen des Klimawandels auf die Ernährung und Gesundheit der Nutztiere zu erfassen. Über alle drei untersuchten agro-ökologischen Zonen hinweg zeigen die Ergebnisse eine bevorzugte Nutzung holziger Futterpflanzen durch die drei Tierarten. Der Anteil der auf Selektion solcher Pflanzen verwendeten Zeit an der Gesamfreßzeit war dabei bei Ziegen signifikant höher als bei Schafen und Rindern (p
Author: Neal K. Van Alfen
Publisher: Elsevier
ISBN: 0080931391
Category : Technology & Engineering
Languages : en
Pages : 2745
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Book Description
Encyclopedia of Agriculture and Food Systems, Second Edition, Five Volume Set addresses important issues by examining topics of global agriculture and food systems that are key to understanding the challenges we face. Questions it addresses include: Will we be able to produce enough food to meet the increasing dietary needs and wants of the additional two billion people expected to inhabit our planet by 2050? Will we be able to meet the need for so much more food while simultaneously reducing adverse environmental effects of today’s agriculture practices? Will we be able to produce the additional food using less land and water than we use now? These are among the most important challenges that face our planet in the coming decades. The broad themes of food systems and people, agriculture and the environment, the science of agriculture, agricultural products, and agricultural production systems are covered in more than 200 separate chapters of this work. The book provides information that serves as the foundation for discussion of the food and environment challenges of the world. An international group of highly respected authors addresses these issues from a global perspective and provides the background, references, and linkages for further exploration of each of topics of this comprehensive work. Addresses important challenges of sustainability and efficiency from a global perspective. Takes a detailed look at the important issues affecting the agricultural and food industries today. Full colour throughout.
Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category : Agriculture
Languages : en
Pages : 498
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Book Description
Author: Stephen Reynolds
Publisher: Science Publishers
ISBN: 9781578083596
Category : Nature
Languages : en
Pages : 564
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Book Description
This book looks at significant current grassland problems and issues, and provides an insight into grassland productivity in diverse areas of the world, with their various production systems. There is a focus on recent technical advances and the prospects for further innovation, through twenty-one chapters by eminent grassland scientists, grouped into seven sections - forage germplasm; forage conservation; grass-based systems and organic production; climate change, biodiversity and biotechnology; geographical information systems; farmer and pastoralist participation; and regional developments. The book is timely in view of the expanding human and livestock populations, especially in arid and semi-arid environments, with the consequent pressure on the world's grasslands.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251054383
Category : Technology & Engineering
Languages : en
Pages : 268
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Book Description
In facing ever more limited resources and changing market conditions and in the attempt to enhance productivity for strengthening livelihoods, many technologies have been used to improve feed use and animal performance at the faro level. A particularly successful example, in terms of both geographic range of use and relative simplicity in formulation and preparation, is the urea-molasses multi-nutrient block technology. This publication provides a comprehensive overview of development and use of the block technology in countries around the world and it might be of great practical value to extension workers, students, researchers and those thinking of using such feed supplementation technology or of starting commercial production.
Author: Carol J. Pierce Colfer
Publisher: Earthscan
ISBN: 1849771626
Category : Business & Economics
Languages : en
Pages : 397
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Book Description
Hundreds of millions of people live and work in forests across the world. One vital aspect of their lives, yet largely unexamined, is the challenge of protecting and enhancing the unique relationship between the health of forests and the health of people. This book, written for a broad audience, is the first comprehensive introduction to the issues surrounding the health of people living in and around forests, particularly in Asia, South America and Africa.Part I is a set of synthesis chapters, addressing policy, public health, environmental conservation and ecological perspectives on health and forests (including women and child health, medicinal plants and viral diseases such as Ebola, SARS and Nipah Encephalitis). Part II takes a multi-lens approach to lead the reader to a more concrete and holistic understanding. It features case studies from around the world that cover important issues such as the links between HIV/AIDS and the forest sector, and between diet and health. Part III looks at the specific challenges to health care delivery in forested areas, including remoteness and the integration of traditional medicine with modern health care. The generous use of boxes with specific examples adds layers of depth to the analyses. The book concludes with a synthesis designed for use by practitioners and policymakers to work with forest dwellers to improve their health and their ecosystems.This book is a vital addition to the knowledge base of all professionals, academics and students working on forests, natural resources management, health and development worldwide.Published with CIFOR and People and Plants International
