Download or read book Economic and Environmental Considerations in Evaluating Manure Management Systems written by Len Fullen and published by Alberta Agriculture, Production and Resource Economics Branch. This book was released on 1984 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic and Environmental Considerations in Dairy Manure Management Systems written by Cornell University Agricultural Experiment Station, Ithaca, N.Y. Dept. of Agricultural Economics and published by . This book was released on 1972 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Evaluation of Manure Management and Farm Gate Applications written by James Ryan Unterschultz and published by . This book was released on 2001 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manure written by Jayne T. MacLean and published by . This book was released on 1990 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Manure written by Heidi M. Waldrip and published by John Wiley & Sons. This book was released on 2020-05-05 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of meat, milk, and eggs consumed in the United States are produced in concentrated animal feeding operations (CAFO). With concentrated animal operations, in turn comes concentrated manure accumulation, which can pose a threat of contamination of air, soil, and water if improperly managed. Animal Manure: Production, Characteristics, Environmental Concerns, and Management navigates these important environmental concerns while detailing opportunities for environmentally and economically beneficial utilization.
Download or read book Livestock and the Environment written by Ralph H. Ramsey and published by . This book was released on 1975 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Wastes written by Janet E. Dombrowksi and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Evaluation of Liquid Manure Disposal Systems for Dairy Cattle written by N. D. Kimball and published by . This book was released on 1970 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Manual on Evaluation and Economic Analysis of Livestock Waste Management Systems written by Richard K. White and published by . This book was released on 1978 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quick Bibliography Series written by and published by . This book was released on 1976 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Protection Technology Series written by and published by . This book was released on 1975-04 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Reporting Series written by and published by . This book was released on 1975 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Manure Management at Smallholder Dairy Farms in Indonesia written by and published by . This book was released on 2021 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a response to a high demand for milk and low national milk supply, the Indonesian government aims to increase national milk production by, among others, increasing the dairy cattle population. This will have consequences especially for manure production. Manure is an inevitable by-product of dairy production and has a number of benefits if it is appropriately managed, but can also cause environmental impacts when high manure production is followed by improper manure management. To avoid these adverse environmental impacts, manure needs to be managed appropriately. Smallholder dairy farms in Indonesia, however, are currently characterized by poor manure management, and with the expected increase in manure production, the importance of improving manure management is increasing. Improving manure management on smallholder farms involves many aspects, such as feed management, land for storing and applying manure, and costs associated with manure management. Knowledge about many of these aspects is lacking. The overall aim of the studies in this PhD thesis was to evaluate emissions to the environment associated with manure management and to identify improvement options on smallholder dairy farms in Indonesia. To this end, the studies in this PhD thesis analysed various aspect of manure management at different aggregation levels (i.e., the animal, farm, regional, and value chain level). At the animal level (Chapter 2), the models to accurately predict N-P excretion of dairy cows on smallholder farms in Indonesia based on readily available farm data were developed. The model predicted actual nutrient excretions with reasonable accuracy. The total N excretion of dairy cows in Indonesia was on average 197 g animal-1 d-1, whereas P excretion was on average 56 g animal-1 d-1. At the farm and regional level (Chapter 3), nutrient balances from dairy farming systems with different manure management systems (MMSs) were analyzed. Furthermore, nutrient balances from farm level were upscaled to regional level to determine the sector’s contribution to the pollution of the Citarum river and to identify potential options for improvement. Results showed that the N balances of all 30 dairy farms averaged 222 kg N farm-1 yr-1 and did not differ between MMSs. The P balances of the farms differed between MMSs; balances were highest for farms that discharge manure (83 kg P farm-1 yr-1) and lowest for farms that sell or export manure (-25 kg P farm-1 yr-1). Annually, all dairy farms in the Lembang region caused a loss of 1,061 tons of N and 290 tons of P into the environment and they extracted 8 tons of P from soils. At the farm and value chain level (Chapter 4 and 5), greenhouse gas emission (GHGE) at the value chain level by means of life cycle assessment (LCA) was estimated. Chapter 4 assessed seasonal differences in GHGE from Indonesian dairy farms by means of longitudinal observations and evaluated the implications of number of farm visits on the variance of the estimated GHGE per kg milk (GHGEI) for a single farm mean, and for the population mean. Results showed that GHGEI was higher in the rainy (1.32 kg CO2-eq kg-1 FPCM) than in the dry (0.91 kg CO2-eq kg-1 FPCM) season. The between farm variance was 0.025 kg CO2-eq kg-1 FPCM in both seasons. The within farm variance in the estimate for a single farm mean and the population mean decreased with an increase in number of farm visits. Variability in GHGEI can therefore be reduced by increasing the number of visits per farm. Forage cultivation was the main source of between farm variance, enteric fermentation the main source of within farm variance. Chapter 5 identified mitigation strategies of GHGE at smallholder dairy farms. The relationship between GHGEI and milk yield per cow for all farms was modelled and farms with an GHGEI below and above their predicted GHGEI were compared (‘low’ and ‘high’ GHGEI farms). Results showed that milk yield explained 57% of the variance in GHGEI among farms. Low GHGEI farms had fewer cows, and fed less rice straw, more cassava waste, and more compound concentrate feed (particularly the type of concentrates consisting largely of by-products from milling industries) than high GHGEI farms. In addition, low GHGEI farms discharged more manure, stored less solid manure, used less manure for anaerobic digestion followed by daily spreading, and applied less manure N on farmland than high GHGEI farms. At the farm and regional level (Chapter 6), the constraints on manure management on smallholder dairy farms and potential opportunities for improvement were identified. There are 20 constraints on manure management, of which availability of space to store manure on the farm, and costs of manure management are regarded most important. Stakeholders proposed strategies to improve manure management: communal manure storage (CMS), a structured manure market, and providing economic and institutional support such as access to credits and financial incentives for good manure management. The cost of manure management was high, and farms that sell or export manure, and farms that have a bio-digester had higher net total cost than farms that discharge manure. Total revenue (TR) differed between manure management systems and farms that apply manure had lower TR than farm that sell or export manure. All MMSs had negative net gross margins which could be explained by the high costs attributed to labour (i.e., family labour) and low revenue from manure. In Chapter 7, the methodological issues of the study, including the scope of the models and the method of data collection were discussed. Chapter 7 integrates the knowledge gained in the various studies and identifies a series of improvement options that connect the aggregation levels animal, farm, region, and value chain. It further suggests ways to create an enabling environment required to implement and effectuate the improvement options.
Download or read book Inventory of Federal Energy related Environment and Safety Research for FY 1978 Project listings and indexes written by and published by . This book was released on 1979 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methane Emissions from Biogas Plants written by Jan Liebetrau and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Sustainable Technologies written by Martin Abraham and published by Elsevier. This book was released on 2017-07-04 with total page 2276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Sustainable Technologies, Eight Volume Set provides an authoritative assessment of the sustainable technologies that are currently available or in development. Sustainable technology includes the scientific understanding, development and application of a wide range of technologies and processes and their environmental implications. Systems and lifecycle analyses of energy systems, environmental management, agriculture, manufacturing and digital technologies provide a comprehensive method for understanding the full sustainability of processes. In addition, the development of clean processes through green chemistry and engineering techniques are also described. The book is the first multi-volume reference work to employ both Life Cycle Analysis (LCA) and Triple Bottom Line (TBL) approaches to assessing the wide range of technologies available and their impact upon the world. Both approaches are long established and widely recognized, playing a key role in the organizing principles of this valuable work. Provides readers with a one-stop guide to the most current research in the field Presents a grounding of the fundamentals of the field of sustainable technologies Written by international leaders in the field, offering comprehensive coverage of the field and a consistent, high-quality scientific standard Includes the Life Cycle Analysis and Triple Bottom Line approaches to help users understand and assess sustainable technologies
Download or read book Bibliography of livestock waste management written by J. Ronald Miner and published by . This book was released on 1972 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
