Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Determining Parameters Of Energy Utilization In Dairy Cattle Using Data From Production Herds
Download Determining Parameters Of Energy Utilization In Dairy Cattle Using Data From Production Herds full books in PDF, epub, and Kindle. Read online Determining Parameters Of Energy Utilization In Dairy Cattle Using Data From Production Herds ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Determining Parameters of Energy Utilization in Dairy Cattle Using Data from Production Herds by : John P. Walter
Download or read book Determining Parameters of Energy Utilization in Dairy Cattle Using Data from Production Herds written by John P. Walter and published by . This book was released on 1986 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Parameters for Partitioned Uses of Energy Intake Estimated from Field Collected and Calorimetric Data on the Same Lactating Holstein Cows by : Peter Malachi Saama
Download or read book Genetic Parameters for Partitioned Uses of Energy Intake Estimated from Field Collected and Calorimetric Data on the Same Lactating Holstein Cows written by Peter Malachi Saama and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Manual on Respiration Chamber Designs by : Cesar Pinares
Download or read book Technical Manual on Respiration Chamber Designs written by Cesar Pinares and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relative Utilization of Energy in Milk Production and Body Increase of Dairy Cows by : Jons August Fries
Download or read book Relative Utilization of Energy in Milk Production and Body Increase of Dairy Cows written by Jons August Fries and published by . This book was released on 1924 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Comparative Utilization of Energy by Cattle for Growth and Lactation by : Donald L. Bath
Download or read book The Comparative Utilization of Energy by Cattle for Growth and Lactation written by Donald L. Bath and published by . This book was released on 1964 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Allowances and Feeding Systems for Ruminants by : Great Britain. Ministry of Agriculture, Fisheries and Food
Download or read book Energy Allowances and Feeding Systems for Ruminants written by Great Britain. Ministry of Agriculture, Fisheries and Food and published by . This book was released on 1975 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles; Food energy; Measurements of metabolisable energy; Metabolisable energy of the ration; Matabolisable energy concentration of rations; Metabolisable energy requirements; Maintenance; Liveweight gain; Milk production; Mobilisation of body reserves; Pregnancy; A net energy system for growing animals; Net energy requirements; Net energy values of foods; Animal production level; Safety margins; Dairy cows; Calculation of metabolisable energy allowances; Liveweight change; Daily ME allowances; Appetite Limits for dairy cows; Checking a ration; Ration formulation; Rapid method; Linear programming; Feeding the dairy cow; Significance of liveweight changes; Ration formulation for stages of lactation; Feeding according to yield; Energy requirements of grazing cows; Growing and fattening cattle; Prediction of performance; Ration calculations; Predicted liveweight gain; Calculation of metabolisable energy allowances; Ration formulation; Rapid method; Linear programming; Net energy system for ration formulation; Animal production level; Net energy values of foods; Net energy allowances; Ration formulation; Replacement values of foods; Linear programming; Sheep; Pregnant and lactating ewes; Maintenance allowances; Pregnancy allowances; Ration formulation; Growing and fattening sheep; Performance prediction; Prediction of liveweight gain; Calculation of metabolisable energy allowances; Net energy system for ration formulation; Net energy allowances; Animal prodution level; Net energy values of foods; Replacement values of foods; Metabolisable energies of foods; Energy values of foods; Digestibility measurements of foods; Metabolisable energy values of foods; Prediction of the ME of forages; Estimation of the ME of compound foods; Tables of food composition.
Book Synopsis Efficiency of Energy Utilization and Fecal Mineral Excreation in Holstein and Jersey Dairy Cows by : Gabriel Garcia Gomez
Download or read book Efficiency of Energy Utilization and Fecal Mineral Excreation in Holstein and Jersey Dairy Cows written by Gabriel Garcia Gomez and published by . This book was released on 2015 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight multiparous Holstein and 8 Jersey dairy cows were used to complete energy balance trials designed to determine the effect of breed on the production and energy efficiency of milk, and energy partitioning. A repeated switchback design was used to compare the effect of cow breed. Diets consisted of 24.5% corn silage, 18.4% alfalfa hay, 6.9% grass hay, with either 22.9% rolled corn and 14.8% soybean meal (CON) or 8.95% rolled corn and 28.8% reduced fat distillers grains (RFDDGS) DM-basis. Diets were offered ad libitum for a 28 d adaptation period and 95% ad libitum for a 4 d collection period. During the collection days, nutrient digestibility and energy use was measured; indirect calorimeter respiration head boxes were used to determine heat production. Across diets, Holstein had a lesser (P
Book Synopsis Nutrient Requirements of Beef Cattle by : Subcommittee on Beef Cattle Nutrition
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.
Book Synopsis Statistical and Optimization Modeling of Energy Utilization by Cattle by : Luis Eduardo Ferrez Dias de Moraes
Download or read book Statistical and Optimization Modeling of Energy Utilization by Cattle written by Luis Eduardo Ferrez Dias de Moraes and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this dissertation was to study energy utilization by cattle using quantitative approaches. In the first chapter, several optimization models were presented and described mathematically. The potential use of these models in diet formulation and in the minimization of environmental impacts of livestock production was discussed. Further, a linear programming model to examine methane emission regulatory policies in a hypothetical dairy herd was decribed in detail. In chapter two, a weighted goal programming optimization model was developed to simultaneously minimize diet costs and methane emissions. A strategy based on the systematic variation of the objective function weights was proposed for the construction of the set of feasible solutions. The mitigation costs, representing the change in dietary costs associated with a unit reduction in methane emissions, were determined using feed prices and dairies from the Central Valley in California. In the third chapter, linear hierarchical models were developed to predict methane emissions from several cattle categories. A large database of indirect calorimetry was used to select, fit and evaluate models of different complexity levels. Bayesian techniques were implemented for robust model selection and fitting resulting in substantial reductions of prediction errors from the extant models in the literature. The last two chapters examined utilization of metabolizable energy by growing and lactating cattle. In chapter four, parametric and nonparametric Bayesian hierarchical models were developed to model energy retention and heat production as a function of metabolizable energy intake. The nonparametric model estimates maintenance requirements and energetic efficiencies without specifying a particular functional form for the relationship between dependent and independent variables. The biological and mathematical assumptions behind the estimation of energetic parameters for each model were comprehensively described. In the last chapter univariate and multivariate hierarchical models were used to estimate maintenance requirements and the partial efficiencies of utilizing dietary energy for milk production and tissue gain. The multivariate model was formulated with structural equations respecting the biological principles governing mutually interactive energy traits. The models were used to demonstrate that maintenance requirements and the efficiencies of utilizing dietary energy increased in contemporary Northern American milk production systems. Canonical correlation analysis suggested that changes in dietary composition and genetic selection for milk production may have altered these energetic parameters over the past five decades.
Book Synopsis Energy and Nitrogen Utilization in Dairy Cattle by :
Download or read book Energy and Nitrogen Utilization in Dairy Cattle written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three experiments were conducted to evaluate possible mitigation strategies to reduce enteric methane (CH4) and manure nitrogen (N) emissions from lactating dairy cows. The first experiment evaluated dietary effects of varying alfalfa silage to corn silage ratio (AS:CS) in the forage portion of the diet on performance and emissions using air-flow controlled chambers with four cows per chamber. Cow performance was similar among treatments but milk net energy for lactation (NEL, Mcal/d) was greatest when feeding about half AS and CS in the forage portion of the diet. Similar, emissions of CH4 and ammonia (NH3) were greatest when feeding about half AS and CS in the forage portion of the diet. However, CH4 per milk energy was similar among treatments but manure and manure N output increased with increasing AS:CS ratio in the forage portion of the diet. Thus, feeding reduced AS:CS in the forage portion may reduce N emissions of dairy cattle. The second experiment evaluated the use of air-flow controlled chambers with only one animal and variation between cows with contrasting gross feed efficiency (GFE, milk kg/kg dry matter intake, DMI) on emissions. Results implied that emission chambers could be used to measure emissions of one animal only and despite no difference in CH4 (g/d) and CH4/DMI (g/kg) between high and low GFE cows, lower CH4/NEL (g/Mcal) and g CH4/NELGM [NEL + NE for gain (NEG) + NE for maintenance (NEM), Mcal/d] combined were for high GFE compared to low GFE cows indicated possible differences in digestion process or energy metabolism between high and low GFE cows. However, the experiment was only conducted using 4 cows. Thus, the third experiment was conducted with 16 cows to confirm results from the second experiment but also to determine differences in energy partitioning, which may have led to the results observed during the second experiment. Results indicated that high GFE cows were also more energy efficient because of lower heat production, which caused more emissions per NEL and per NELGM. However, from this study there was no single reason that could be determined to have led to the greater heat production.
Book Synopsis Condition Scoring of Cattle by : B. G. Lowman
Download or read book Condition Scoring of Cattle written by B. G. Lowman and published by . This book was released on 1976 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology of Lactation by : Herbert-H Head
Download or read book Biology of Lactation written by Herbert-H Head and published by Quae. This book was released on 1999-01-01 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of the most fundamental features of the biology of the mammary gland, a unique model of an organ capable of an abundant synthesis of proteins: endocrinology of lactation, role of prolactin, genetics and protein synthesis, immunology and the mammary gland, nutrition and dairy products. Readership: students, teachers, researchers, health and agriculture professionals. Lactation Biology was first published in French in 1993. The English version is not merely a translation: it has been updated by the author.
Book Synopsis The Utilization of the Energy in Various Rations by Lactating Dairy Cows by : James Robb
Download or read book The Utilization of the Energy in Various Rations by Lactating Dairy Cows written by James Robb and published by . This book was released on 1967 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling Nutrient Utilization in Farm Animals by : J. P. McNamara
Download or read book Modelling Nutrient Utilization in Farm Animals written by J. P. McNamara and published by CABI. This book was released on 2000 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes current research in modelling nutrient use in farm animals, from cellular to ecosystem level. The chapters are developed from papers presented at a satellite meeting of the 9th International Symposium on Ruminant Physiology, held in South Africa in October 1999.Excellent papers from a top list of contributorsEditors of great reputationCovers the current topics of interest
Author :Agricultural and Food Research Council (Great Britain). Technical Committee on Responses to Nutrients Publisher :Cabi ISBN 13 : Total Pages :198 pages Book Rating :4.:/5 (89 download)
Book Synopsis Energy and Protein Requirements of Ruminants by : Agricultural and Food Research Council (Great Britain). Technical Committee on Responses to Nutrients
Download or read book Energy and Protein Requirements of Ruminants written by Agricultural and Food Research Council (Great Britain). Technical Committee on Responses to Nutrients and published by Cabi. This book was released on 1993 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an officially authorized advisory manual that implements the recommendations on the energy and protein requirements of cattle, sheep and goats made by the AFRC Technical Committee on Responses to Nutrients (TCORN) since its establishment in 1982. TCORN has produced a series of numbered reports including No. 5 in 1990 on Nutrient Requirements on Ruminant Animals: Energyand in 1992, No. 9 Nutrient Requirements of Ruminant Animals: Protein. The former recommended, with only minor modifications, the adoption of the AFRC’s 1980 Technical Review’s full recommendations on energy requirements of ruminants, while the latter recommended the adoption of a protein system based on Metabolisable Protein as the unit. Opportunity has been taken to include material from TCORN Report No. 8, 1991 on the Voluntary Intake of Silage by Cattle and from an unpublished TCORN Report on the Nutrition of Goats. The current volume presents these recommendations in a practical form designed for use by advisors, farmers, lecturers, research workers and students concerned with the nutrition of ruminant animals. The manual includes 45 tables of requirements (incorporating agreed safety margins) and 29 example diets.
Book Synopsis New Views Regarding the Scientific Feeding of Dairy-cattle by : Holger Möllgaard
Download or read book New Views Regarding the Scientific Feeding of Dairy-cattle written by Holger Möllgaard and published by . This book was released on 1924 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
