Evaluation Of Perennial Ryegrass Straw As A Forage Source For Ruminants
DOWNLOAD
Download Evaluation Of Perennial Ryegrass Straw As A Forage Source For Ruminants PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Evaluation Of Perennial Ryegrass Straw As A Forage Source For Ruminants book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Evaluation Of Perennial Ryegrass Straw As A Forage Source For Ruminants
DOWNLOAD
Author : Michael J. Fisher
language : en
Publisher:
Release Date : 2003
Evaluation Of Perennial Ryegrass Straw As A Forage Source For Ruminants written by Michael J. Fisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Beef cattle categories.
We conducted two experiments evaluating perennial ryegrass straw as a forage source for ruminants. Experiment 1 evaluated digestion and physiological variables in steers offered perennial ryegrass straw containing increasing levels of lolitrem B. Sixteen ruminally cannulated Angus X Hereford steers (231 ± 2 kg BW) were blocked by weight and assigned randomly to one of four treatments (TRT). Steers were provided perennial ryegrass straw at 120% of the previous 5-d average intake. Prior to straw feeding, soybean meal (SBM) was provided (0.1% BW; CP basis) to meet the estimated requirement for degradable intake protein. Low (L) and high (H) lolitrem B straws (100 and 1550 ppb, respectively) were used to formulate TRT diets: LOW (100% L); LOW MIX (67% L:33% H); HIGH MIX (33% L:67% H); HIGH (100% H). Intake and digestibility of DM and OM, and ruminal pH, total VFA, and NH3-N were not affected by increasing lolitrem B concentration (P0.13). Ruminal indigestible ADF (IADF) fill increased linearly (P=0.01) and IADF passage rate (%/h) decreased linearly (P=0.04) as lolitrem B level increased. Experiment 2 evaluated performance and production of 72 Angus X Hereford cows (539 ± 5 kg BW) consuming perennial ryegrass straw containing increasing levels of lolitrem B during the last third of gestation. Cows were blocked by body condition score (BCS) and randomly assigned to one of three TRT. Cows were provided perennial ryegrass straw ad libitum and supplemented with SBM (0.1% BW; CP basis) to meet the estimated requirement for degradable intake protein. Mixtures of a L and H lolitrem B straw (467 and 2017 ppb, respectively) were used to formulate TRT diets: LOW (100% L); MIX (50% L:50% H); HIGH (100% H). Thirteen of 24 cows on the HIGH TRT exhibited signs of ryegrass staggers and were removed from the study. Dry matter intake was not affected (P>0.12) by increasing lolitrem B concentration; however, estimated DM digestibility decreased linearly (P0.01) as lolitrem B concentration increased. Lolitrem B concentration did not influence pre- or post calving weight or BCS change (P0.10). These data suggest that feeding perennial ryegrass straw containing up to 1550 ppb lolitrem B does not adversely affect nutrient digestion or physiological response variables in steers. However, providing straw with a lolitrem B concentration of approximately 2000 ppb resulted in 54% of cows exhibiting signs of ryegrass staggers. Blending of H and L straws appears to be a successful management practice. Keywords: Alkaloid, Beef Cattle, Endophyte, Lolitrem B, Perennial Ryegrass, Straw.
Phytochemicals Plant Growth And The Environment
DOWNLOAD
Author : David R Gang
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-08-30
Phytochemicals Plant Growth And The Environment written by David R Gang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-30 with Science categories.
This is the second volume since the reintroduction of the Recent Advances in Phytochemistry (RAP) series, an annual journal supported by the Phytochemical Society of North America. Topics appropriate for RAP include the biosynthesis of natural products and regulation of metabolism, the ecology of specialized metabolites and the evolution of their pathways, and the effects of natural products or plants on human health. Research appropriate for RAP involves genomics, proteomics, metabolomics, natural product structural determination and new technology development, medicinal chemistry and metabolic engineering, or any of the myriad of fields that are now closely associated with what may be called “traditional phytochemistry” and plant biochemistry. The advent of post-genomics-based ways of thinking, of systems biology, of synthetic biology, of comparative genomics/ proteomics/ transcriptomics/ metabolomics and especially of the introduction and establishment of a mentality that leads to support of large collaborative projects, has opened up many new doors to scientists interested and versed in the (bio)chemistry of plants. The goal of RAP is to highlight these developments. Two main types of articles are printed in RAP: Perspectives and Communications. Perspectives in RAP are expected to synthesize results from the primary literature and perhaps from new/novel results and place these in perspective relative to the broader field. These articles may be similar to review articles, but also are intended to present important ideas and hypotheses, and may present proposals for interesting directions in the field. It is the hope of the Editorial Board that these articles will be of great value to a large audience. Communications are intended to represent new advances in the field that will be of interest to a large audience. Articles of both types are typically solicited from the Society membership based on the content of the annual meeting talks, but in keeping with the title “Recent Advances in Phytochemistry” the editorial board reserves the right to solicit additional Perspectives and/or Communications from non-attendees as well (e.g., where an editorial board member has knowledge of an interesting recent advancement that would be of general interest to the society membership). All submissions to RAP go through a rigorous peer review process, overseen by the Editorial Board, which includes external review. RAP is indexed with Springer published journals. All RAP papers are available not only in the published volume form, but also electronically through Springer’s online literature services. This marks a significant change from past volumes of RAP and it is the hope of the Editorial Board that this will lead to broader dissemination of the contents of and greater interest in RAP. This 42nd volume of RAP includes a total of seven articles, many, but not all, based on talks presented at the 50th annual meeting of the PSNA. As was seen in RAP volume 41, These seven Perspectives give a very good picture of the breadth of plant (bio)chemistry research in North America, which is also indicative of the state of the field worldwide. Each of these articles describes the integration of several different approaches to ask and then answer interesting questions regarding the function of interesting plant metabolites, either in the plant itself or in interactions with the environment (natural setting or human health application). Many of these Perspectives have a strong ecological focus. McCormick et al. review the discovery of the biosynthetic pathway leading to production of trichothecene mycotoxins such as the T-2 toxin in plant pathogenic and other fungi. These compounds play very important roles in plant-pathogen interaction, and are very significant from a human health perspective. In a complementary paper, Duringer et al. describe recent technological advances in monitoring mycotoxins such as ergovaline and lysergic acid in forage crops, using state of the art and highly sensitive mass spectrometric means. Gross reviews the current understanding of how infochemicals mediate interactions between plants and insects, and highlights how such knowledge can be used to mitigate crop losses by pests. Two Perspectives discuss how recent technological advances are making an impact on our understanding of the role of plant hormones in plant growth and development. Gouthu et al. outline highly sensitive methods for measurement of plant hormones in tissues such as developing grape berry. In contrast, McDowell and Gang outline how new transcriptional profiling techniques are shedding light on old questions, such as how rhizome development is regulated by different plant growth regulators. The last two Perspectives outline the role of biotechnology in modern plant biochemistry research. Makhzoum et al. review the long history of use of hairy roots and provide perspective on future utility of this tissue type in continuing to uncover mechanisms of plant natural product biosynthesis, among other apolications. Dalton et al. outline, on the other hand, recent efforts to produce non-native polymers of human interest in plants and outline many of the challenges associated with such investigations. We hope that you will find these Perspectives to be interesting, informative, and timely. It is our goal that RAP will act not only as the voice of the PSNA, but that it will serve as an authoritative, up-to-date resource that helps to set the gold standard for thought and research in fields related to plant biochemistry.
Tall Fescue For The Twenty First Century
DOWNLOAD
Author : Henry A. Fribourg
language : en
Publisher: ASA-CSSA-SSSA
Release Date : 2009
Tall Fescue For The Twenty First Century written by Henry A. Fribourg and has been published by ASA-CSSA-SSSA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Nature categories.
"Book and Multimedia Publishing Committee; David Baltensperger, chair ... [et al.]."
Neotyphodium In Cool Season Grasses
DOWNLOAD
Author : Craig A. Roberts
language : en
Publisher: John Wiley & Sons
Release Date : 2008-02-28
Neotyphodium In Cool Season Grasses written by Craig A. Roberts and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-28 with Technology & Engineering categories.
Divided into logical easy-to-use sections, Neotyphodium in Cool-Season Grasses is an up-to-date anthology of the latest knowledge on the genus Neotyphodium. This thorough text covers the molecular biology of Neotyphodium endophytes and their effects on grass hosts, invertebrate and vertebrate herbivores, and the plant communities in which they interact. The expert editors also include information on the commercial uses of endophytes in livestock and turf industries. Researchers and teachers in grass research, extension, agronomy, and animal toxicology, and university libraries with courses in these subjects should not be without this important text.
Forage Evaluation In Ruminant Nutrition
DOWNLOAD
Author : D. I. Givens
language : en
Publisher: CABI
Release Date : 2000-05-25
Forage Evaluation In Ruminant Nutrition written by D. I. Givens and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-05-25 with Science categories.
Current pressures to maximise the use of forages in ruminant diets have renewed interest in fast, inexpensive methods for the estimation of their nutritional value. As a result, a wide variety of biological and physiochemical procedures have recently been investigated for this purpose.This book is the single definitive reference volume on the current status of research in this areaCovers all forages eaten by ruminant animals
Evaluation Of Straws In Ruminant Feeding
DOWNLOAD
Author : M. Chenost
language : en
Publisher:
Release Date : 1989
Evaluation Of Straws In Ruminant Feeding written by M. Chenost and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Ruminants categories.
Norfor
DOWNLOAD
Author : Harald Volden
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-10-05
Norfor written by Harald Volden and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-05 with Science categories.
NorFor is a semi-mechanistic feed evaluation system for cattle, which is used by advisors in Denmark, Iceland, Norway and Sweden. This book describes in detail the system and it covers five main sections. The first is concerned with information on feed characteristics, feed analysis and feed digestion methods. The second section describes the digestion and metabolism in the gastrointestinal tract and the supply and requirement of energy and metabolizable amino acids. The third section considers the prediction of feed intake and physical structure of the diet. The fourth section focuses on model evaluation and the final section provides information on the IT solutions and feed ration formulation by a non-linear economical optimization procedure. This book will be of significant interest to researchers, students and advisors of cattle nutrition and feed evaluation.
Physiological Aspects Of Digestion And Metabolism In Ruminants
DOWNLOAD
Author : T. Tsuda
language : en
Publisher: Academic Press
Release Date : 2012-12-02
Physiological Aspects Of Digestion And Metabolism In Ruminants written by T. Tsuda and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
This volume is comprised of invited papers presented at the Seventh International Symposium on Ruminant Physiology, held in Sendai, Japan, in September 1989. Papers are invited on the recommendations of 300 international experts. The proceedings of this symposia provides the most comprehensive coverage available of current research in ruminant physiology.
Forage Quality Evaluation And Utilization
DOWNLOAD
Author : George C. Fahey
language : en
Publisher:
Release Date : 1994
Forage Quality Evaluation And Utilization written by George C. Fahey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Nature categories.
Provides a historical foundation as well as a review of the state-of- the-art in forage science, detailing 25 years of progress in forage quality, evaluation, and utilization, along with the latest developments and new directions for future research. The volume is divided into six sections: overview of forage science; identification and quantitative measurement of forage quality components; intake as a critical element of forest quality; role of digestion and metabolism in determining forage quality; integrating concepts affecting changes in forage quality; and improving forage quality and evaluation. No index. Member price, $36. Annotation copyright by Book News, Inc., Portland, OR
Proceedings
DOWNLOAD
Author : American Society of Animal Science. Western Section. Meeting
language : en
Publisher:
Release Date : 1984
Proceedings written by American Society of Animal Science. Western Section. Meeting and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Livestock categories.