Author: Elizabeth Mary O'RourkePublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 160
Book Description
Effect of Diet on Monitoring and Reducing Phosphorus on Dairy Farms
Author: Elizabeth Mary O'RourkePublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 160
Book Description
Phosphorus and Calcium Utilization and Requirements in Farm Animals
Author: Dorinha M. S. S. VittiPublisher: CABI
ISBN: 1845936272
Category : Animal nutrition
Languages : en
Pages : 190
Book Description
This book contains 10 chapters that discuss phosphorus and calcium metabolism, efficiency of utilization, availability, requirements and excretion in livestock and environmental impact.
Mémoire au Conseil d'état, pour le Maire de la ville de Colmar, chef-lieu du Département du Haut-Rhin, au nom de cette commune, propriétaire des premières Herbe des prés, composant les Cantons de Linden et Horten, ban de Colmar; Contre les citoyens Salomon et consors, soumissionnaires-acquéreurs de soixante journaux deux tiers de prés, provenans de l'émigré Wurmser
Author: Nitrogen and Phosphorus Nutrition of Cattle
Author: Alexander N. HristovPublisher: CABI Publishing
ISBN: 9780851990132
Category : Technology & Engineering
Languages : en
Pages : 288
Book Description
Interactions between Cattle and the Environment: a General Introduction; Nitrogen Requirements of Cattle; Nitrogen Metabolism in the RUlDen; Factors Affecting the Efficiency of Nitrogen Utilization in the RUlDen; Whole-anilnal Nitrogen Balance in Cattle Phosphorus Metabolism in the RUlDen; Phosphorus Metabolism in Rwninants and Requirements of Cattle; Etfects ofDietary Phosphorus and Nitrogen on Cattle Reproduction; lnproving the EfficielicY cifNutrient Use on Cattle Operations.
Phosphorus in Transition Cows
Author: R.M.A. GoselinkPublisher:
ISBN:
Category :
Languages : en
Pages : 61
Book Description
The present study evaluates the effect of different dietary phosphorus (P) levels in dairy cattle during the transition period, focussing on animal performance and animal health. Overfeeding P in the dry period (185% vs. 100% of requirements) did not affect feed intake or milk yield postpartum, but decreased plasma P and Ca concentrations and increased the risk for periparturient hypocalcemia. A reduction of the dietary P content in lactation diets (70% vs. 100%) reduced the average plasma P concentration, increased plasma Ca concentration and P mobilisation and reduced faecal excretion of P. However, no negative effects on cow performance or animal health were found for diets with a P content below calculated requirements in the first eight weeks postpartum.
Sustainable Animal Agriculture
Author: Ermias KebreabPublisher: CABI
ISBN: 1780640420
Category : Technology & Engineering
Languages : en
Pages : 335
Book Description
In order to meet increasing global demand for meat and animal by-products increasingly intensive animal production is necessary. Creating a sustainable system in animal agriculture that works in different production environments is a major challenge for animal scientists. This book draws together themes on sustainability that have emerged as the most pressing in recent years. Addressing practical topics such as air quality, manure management, animal feeds, production efficiency, environmental sustainability, biotechnology issues, animal welfare concerns, societal impacts and an analysis of the data used to assess the economic sustainability of farms.
Dietary Phosphorus in Dairy Cattle, how to Manage Nutrients and Protect the Environment
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 3
Book Description
Cattle producers may feed phosphorus above the levels required for nutrition and the extra nutrients can therefore end up in the manure, resulting in higher than necessary feed bills and possibly leading to undesirable environmental consequences. This bulletin explains the environmental & economic effects of excess phosphorus in dairy cattle feed, and provides information on the phosphorus requirements of cattle and how to adjust feed rations to minimize costs & phosphorus output to manure while ensuring adequate nutrition.
Nitrogen Fixation in Bacteria and Higher Plants
Author: R.C. BurnsPublisher: Springer Science & Business Media
ISBN: 364280926X
Category : Science
Languages : en
Pages : 198
Book Description
Our knowledge of the biochemistry and biophysics of dinitrogen fixa tion has developed rapidly in the 15 years since the first N2-fixing enzyme system was successfully extracted from a bacterium. This peri od has produced a literature that now describes the N2 fixation reac tion and the nitrogenase enzyme itself in sophisticated terms, though a detailed reaction mechanism at the chemical level has not yet emerged. It is the purpose of the present monograph to present an in-depth re view, analysis, and integration of this research as is possible with a non-contributed publication and to relate this work to considera tions of N2 fixation that reach beyond the confines of the biochem ist's laboratory. The first section is directed as much toward the general science read er as toward the specialist. It covers the agricultural origins of man's interest in N2 fixation and also pertinent areas of taxonomy, physiology, and evolution. Ecological aspects of the subject include a comprehensive evaluation of the nitrogen cycle leading to a sub stantially greater estimate of the rate of global N2 fixation than previous ones. The treatment is of a survey fashion, in part to pro vide a general over-view of N2 fixation and in part to provide context for the biochemistry and biophysics that follow in the second section.
The Financial Impact of Animal-related Phosphorus Management on Vermont Dairy Farms
Author: Alyssa R. DoddPublisher:
ISBN:
Category : Farms
Languages : en
Pages : 332
Book Description
Phosphorus: Polluter and Resource of the Future
Author: Christian SchaumPublisher: IWA Publishing
ISBN: 1780408358
Category : Science
Languages : en
Pages : 592
Book Description
This comprehensive book provides an up-to-date and international approach that addresses the Motivations, Technologies and Assessment of the Elimination and Recovery of Phosphorus from Wastewater. This book is part of the Integrated Environmental Technology Series.