Rumen microbiome dynamics and their implications in health and environment
Author: Robert W Li
Publisher: Frontiers Media SA
Published: 2023-07-06
Total Pages: 238
ISBN-13: 2832527531
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The Rumen and Its Microbes
Author: Robert E. Hungate
Publisher: Elsevier
Published: 2013-10-22
Total Pages: 544
ISBN-13: 1483263622
DOWNLOAD EBOOK →The Rumen and Its Microbes is a contribution to the ecology of this important microbial habitat. Relatively few microbial habitats have been subjected to a thorough quantitative ecological analysis. The rumen fermentation is peculiarly suitable because of its relatively constant and continuous nature and because of the very rapid rates of conversion of organic matter. Although analysis of the ruminant-microbe symbiosis is still far from complete, knowledge is sufficient for formulation of principles and for identification and measurement of important parameters. The first eight chapters of the book include a description of the rumen and its microbes, their activities, and the extent of these activities. This basic biology provides a framework in which applications to agriculture can be evaluated. These applications are discussed in the last four chapters: host metabolism, variation in the rumen, possible practical applications, and abnormalities in rumen function.
Gut Microbiome Modulation in Ruminants: Enhancing Advantages and Minimizing Drawbacks
Author: Alejandro Belanche
Publisher: Frontiers Media SA
Published: 2021-02-17
Total Pages: 437
ISBN-13: 288966483X
DOWNLOAD EBOOK →Digestive Physiology and Metabolism in Ruminants
Author: Y. Ruckebusch
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 856
ISBN-13: 9401180679
DOWNLOAD EBOOK →Two questions could not be avoided in the avant-propos of this book; (i) what is the importance to man of ruminant livestock, and (ii) what results of practical relevance in the growing mountain of scientific verbiage could be found in the Proceedings of this Symposium. Herbivores are an integral and critical part of the natural ecosystem which must be preserved because of their impact on human welfare. Wh at makes ruminants especially important to man is that they can thrive on fibrous forage and are thus the only viable enterprise over much of the earth's surface where crop growing is impracti cable. They contribute a wide array of products in addition to 50000 000 tonnes ofmeat (1977) and represent a 'capital reserve' that can be drawn upon in times of emergency: milk for example (450000000 tonnes) can make the difference between subsistence and starvation. About 60% of the world's meat and 80 % of the milk are produced by one third of the world ruminant population in the developed regions and as much as 99 % of the power for agriculture is provided by the ruminant population in developing countries. For the next two decades, a probable increase by 30 % for . cattle and buffalo and more than 40 % for sheep and goats is expected by improving health, fertility, nutrition and genetic potential rather than feed resources.
Engineering Rumen Metabolic Pathways: Where We Are, and Where Are We Heading
Author: Emilio M. Ungerfeld
Publisher: Frontiers Media SA
Published: 2018-03-13
Total Pages: 280
ISBN-13: 2889454266
DOWNLOAD EBOOK →Ruminants were domesticated in the Middle East about 10,000 years ago and have since become an inseparable part of human diet, society, and culture. Ruminants can transform inedible plant fiber and non-protein nitrogen into meat, milk, wool and traction, thus allowing human utilization of non-tillable land and industrial by-products. The nutritional flexibility of ruminants is conferred by the rumen´s complex microbial community. Driven by rising income and population growth in emergent economies, the global demand for livestock products, including milk and meat from ruminants, has been increasingly growing, and is predicted to continue growing in the next few decades. The increase in production necessary to satisfy this rising demand is putting much pressure on already dwindling natural resources. There are also concerns about the emissions of methane and nitrous oxide, potent greenhouse gases associated to ruminant production. The need to make ruminant production more efficient in the use of natural resources poses a big challenge to ruminant science, and within it, rumen microbiology. Recent years have seen important advances in basic and applied rumen microbiology and biochemistry. The knowledge generated has significant implications for the efficiency and sustainability of ruminant production and the quality of ruminant products for human health. The present compilation is an update of recent advances in rumen microbiology and ruminant digestion and fermentation, including original research, reviews, and hypothesis and theory articles. We hope that the experimental results, discussion, models and ideas presented herein are useful to foster future research contributing to sustainable ruminant production.
Diversity, Dynamics, and Drivers of the Rumen Microbial Ecosystem
Author: Christopher L. Anderson
Publisher:
Published: 2018
Total Pages: 0
ISBN-13: 9780438696723
DOWNLOAD EBOOK →Ruminant production systems exist at the nexus of vital issues confronting society, including emerging antibiotic resistance, global warming, and feeding a growing population. The rumen is host to a complex microbial community that drives degradation and fermentation processes that yield metabolic energy for the host. The rumen microbiome is estimated to provide ~70% of a ruminant's caloric needs. Rumen microbes are therefore vital to ruminant health and productivity, and in turn, are central to the sustainability of ruminant agriculture. However, our knowledge of the dynamics, ecological drivers, and genomic diversity of the rumen microbiome is limited. Through multiple investigations, we attempt to increase our fundamental understanding of rumen microbial ecology. As a result, we demonstrate: (a) rumen bacterial communities can be acclimated to high concentrate diets faster than traditional adaptation programs, (b) total digestible nutrients is the primary ecological driver of rumen bacterial and viral populations, (c) viral-encoded auxiliary metabolism genes modulate rumen carbon metabolism, and (d) the reconstruction of 2,150 microbial genomes improves the genomic representation for rumen microbial taxa. Further, mining recovered metagenome-assembled genomes suggests rumen microbes encode diverse biosynthetic gene clusters and are a rich source of natural products for manipulating rumen fermentation. We anticipate improved genomic characterization of rumen microbes integrated with foundational knowledge on the dynamics and drivers of the ecosystem can lead to the development of more mechanistic understandings of the rumen microbiome.
Ruminant Physiology
Author: Pierre Cronjé
Publisher: CABI
Published: 2000
Total Pages: 492
ISBN-13: 9780851997124
DOWNLOAD EBOOK →The International Symposium on Ruminant Physiology (ISRP) is the premier forum for presentation and discussion of advances in knowledge of the physiology of ruminant animals. This book brings together edited versions of the keynote review papers presented at the symposium.
The Rumen Microbial Ecosystem
Author: P.N. Hobson
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 741
ISBN-13: 9400914539
DOWNLOAD EBOOK →The Preface to the first edition of this book explained the reasons for the publication of a comprehensive text on the rumen and rumen microbes in 1988. The microbes of the ruminant's forestomach and those in related organs in other animals and birds provide the means by which herbivorous animals can digest and obtain nutriment from vegetation. In turn, humans have relied, and still do rely, on herbivores for much of their food, clothing and motive power. Herbivores also form the food of carnivorous animals and birds in the wild. The importance of the rumen microorganisms is thus apparent. But, while a knowledge of rumen organisms is not strictly neces sary for the normal, practical feeding of farm animals, in recent years there has been much more emphasis on increasing the productivity of domesti cated animals and in rearing farm animals on unusual feedstuffs. Here, a knowledge of the reactions of the rumen flora, and the limits to these reactions, can be invaluable. In addition, anaerobic rumen-type microor ganisms are found in the intestines of omnivores, including humans, and can be implicated in diseases of humans and animals. They are also found in soils and natural waters, where they playa part in causing pollution and also in reducing it, while the same organisms confined in artificial systems are essential for the purification of sewage and other polluting and toxic wastes.
Improving Rumen Function
Author: Chris McSweeney
Publisher: Burleigh Dodds Agricultural Sc
Published: 2020-04-28
Total Pages: 520
ISBN-13: 9781786763327
DOWNLOAD EBOOK →Part 1 summarises advances in analysing the rumen microbiome. Part 2 reviews recent research on different types of rumen microbiota. Part 3 discusses the way the rumen processes nutrients whilst Part 4 explores nutritional strategies to optimise rumen function.
Rumen Microbial Metabolism and Ruminant Digestion
Author: J. P. Jouany
Publisher: Editions Quae
Published: 1991
Total Pages: 388
ISBN-13: 2738003451
DOWNLOAD EBOOK →This book brings together the data of lastest international research and was conceived as the result of a summer school held at the INRA Centre of Clermont-Ferrand/Theix from 24 September to 4 Octobre 1990. The subject is the rumen as a fermentor and the means by which rumen functioning can be optimized for the maximum benefit ot the ruminant.
