Download or read book Evaluation of Pasture Forages for Lactating Cows Nitrogen Fertilized Grasses Versus Grass legume Mixtures written by John I. Leslie and published by . This book was released on 1965 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Evaluation in Ruminant Nutrition written by D. I. Givens and published by CABI. This book was released on 2000-05-25 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Evaluation of Pasture Forages for Lactating Cows written by John I. Leslie and published by . This book was released on 1962 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the National Conference on Forage Quality Evaluation and Utilization September 3 4 1969 written by Robert F. Barnes and published by . This book was released on 1970 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forage Quality Evaluation and Utilization written by George C. Fahey and published by . This book was released on 1994 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Evaluation of Forage Energetics and Implications to Pasture Based Dairy Cattle in the Northeastern United States written by Miriam Allison Snider and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organic, grassfed (OGF) dairy sector has been growing for the past 10 yr with expansion rapidly outpacing other dairy sectors. Unique management approaches are needed for OGF systems, but research to support said approaches is lacking. The objectives of this dissertation were to 1) survey OGF dairy producers to better understand producer knowledge and practices, as well as identify areas of needed research to support this farmer population, 2) determine in vitro rumen performance of energetic supplements commonly utilized on OGF dairy farms in the Northeastern (NE) United States (U.S.), and 3) identify and evaluate forage combinations using in vitro continuous culture fermentation, focused on rumen energetic status and environmental output. While Chapter 1 reviews the published literature relevant to OGF dairy systems with a focus on their nutritional management, Chapter 2 utilized a survey questionnaire that was mailed to 351 OGF dairy farms throughout the U.S. with a 46.8% response rate. This survey confirmed the need for further forage-related research, as producers indicated that agricultural-related challenges, such as forage quality and milk production, were the largest limitations to farm success followed by economic factors. In Chapter 3, we evaluated rumen fermentation metrics of red clover + orchardgrass harvested at first and second cuttings, and further investigated the impacts of dietary apple cider vinegar (ACV) supplementation in combination with first cut forages on fermentation metrics using two in vitro batch culture experiments (Objective 2). In Experiment 1, tubes were supplemented with either 1) 50% red clover + 50% orchardgrass harvested at first cut (CUT 1) or 2) 50% red clover + 50% orchardgrass harvested at second cut (CUT 2). In Experiment 2, tubes received either 1) CUT 1 substrate only or 2) CUT 1 substrate + ACV. Tubes receiving CUT 1 produced more methane (CH4) and had higher DM (dry matter) disappearance and mean pH compared with those receiving CUT 2. Fermentation metrics of CUT 1 tubes were not affected by ACV. Ultimately, this trial confirmed that forage cut, and chemical profile, is a more impactful variable driving rumen function. Objective 3 of this dissertation was addressed in Chapters 4 and 5 in which fermentation metrics of mixed forage diets were compared using dual-flow continuous culture fermenters. Chapter 4 focused on forage diversity using cool-season forages. Four diets were mixed (on a DM-basis) to include 40% red clover plus: 1) 60% orchardgrass (OG); 2) 30% orchardgrass + 30% meadow fescue (MF); 3) 20% orchardgrass + 20% meadow fescue + 20% Kentucky bluegrass (KYBG); or 4) 15% orchardgrass + 15% meadow fescue + 15% Kentucky bluegrass + 15% perennial ryegrass (PRG). Diets including 20% Kentucky bluegrass were more digestible but produced higher amounts of CH4. Other forages, such as perennial ryegrass and meadow fescue, may be just as nutritionally beneficial as Kentucky bluegrass with the additional advantage of decreased CH4 emissions. Chapter 5 focused on warm-season annual (WSA) inclusion, complemented by a simple cost analysis. Dietary treatments (on a DM-basis) included 1) 50% orchardgrass + 50% alfalfa (OG-ALF); 2) 25% orchardgrass + 25% alfalfa + 50% red clover (RC); 3) 25% orchardgrass + 25% alfalfa + 50% pearl millet (MIL); and 4) 25% orchardgrass + 25% alfalfa + 50% sorghum x sudangrass (SUD). Diets with WSA showed marked decreases in CH4 output but were similar in digestibility to other diets.
Download or read book NorFor written by Harald Volden and published by Springer Science & Business Media. This book was released on 2011-10-05 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.
Download or read book Irrigated Pastures written by Dan Hansen and published by . This book was released on 1924 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forages Volume 2 written by Kenneth J. Moore and published by John Wiley & Sons. This book was released on 2020-05-29 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
Download or read book Guide to Pasture Condition Scoring written by Dennis Cosgrove and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Major Uses of Land in the United States 2007 written by Cynthia Nickerson and published by . This book was released on 2012-06-08 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States has a total land area of nearly 2.3 billion acres. The Economic Research Service's Major Land Uses (MLU) series is the only accounting of all major uses of public and private land in all 50 States. These State estimates were started in 1945 and have been consistently published at roughly 5-year intervals, coinciding with the Census of Agriculture. Land use and land-use changes involve important economic and environmental implications for commodity production and trade, open space, soil and water conservation, and other policy issues. To study land-use change, statistics on land use over time must be developed. This publication presents the results of the latest inventory (2007) of U.S. major land uses and discusses national and regional trends in land use compared with earlier estimates. Data from USDA's Forest Service, National Agricultural Statistics Service, the U.S. Census Bureau, public land management and conservation agencies, and other sources were compiled by State to estimate the uses of several broad classes and subclasses of land in 2007.
Download or read book Effects of Forage Feeding on Milk written by Pavel Kalac and published by Academic Press. This book was released on 2017-07-05 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of Forage Feeding on Milk: Bioactive Compounds and Flavor collates the research related to biologically active compounds associated with chain fresh/preserved temperate forages, the dairy animal, and cow ́s, goat ́s, and ewe ́s milk and milk products. Comprised of six chapters, this book begins by presenting a brief overview of components of the chain – the forage, the milking animal, and milk. The book then addresses desirable and detrimental compounds by providing an expansive description of each compound’s chemical nature, methods of analytical determination, biological properties and effects on humans, factors affecting level in forage, effects of ensiling and haymaking, processes within the animal, content in milk and milk products, and health evaluation. The book also outlines volatiles affecting the flavor of milk and milk products, and includes a conclusion and numerous relevant references for further reading. Summarizes the research related to biologically active compounds associated with milk and milk products Presents an overview of chain forage related to milking animal milk Explores desirable and detrimental compounds Outlines volatiles affecting the flavor of milk and milk products Includes relevant references for further reading
Download or read book Evaluation and Utilization of Forages in Dairy Cattle Rations in Northeastern Mexico microform written by Ramon Armando Martinez Parra and published by National Library of Canada. This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages produced in the Comarca Lagunera desert region of Mexico were examined with respect to current utilization patterns in commercial dairy rations and their nutritive value as measured by apparent digestibility, voluntary intake, and influence on milk production and mineral status in Holstein cows. Alfalfa greenchop was the most common forage utilized in the rations of nine farms surveyed; 100% of the farmers used the forage at a mean level of 68% of the forage in the diet. Corn silage and annual ryegrass were used by 53 and 50% of the farmers at a mean level of 16.5 and'10% of the forage, respectively. Sudangrass, forage oats and sorghum silage were also used to a limited extent. Milk production on dairy farms was higher (P
Download or read book Nutrient Requirements of Domesticated Ruminants written by Mike Freer and published by CSIRO PUBLISHING. This book was released on 2007 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This publication represents a revision of the report entitled 'Feeding standards for Australian livestock. Ruminants' that was issued in 1990 by CSIRO Publishing in conjunction with the Standing Committee on Agriculture"--Introduction.
Download or read book Effect of Environment on Nutrient Requirements of Domestic Animals written by National Research Council and published by National Academies Press. This book was released on 1981-02-01 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruminant Nutrition written by Robert Jarrige and published by John Libbey Eurotext. This book was released on 1989 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deals with feed evaluation systems, the nutrient requirements of ruminant livestock and the feeding value of a wide range of feedstuffs. This book lists about 800 typical forages, 65 crop residues and 120 concentrate and by-product feeds. It is suitable for teachers, specialist scientists and industrialists.
