Alternate Nitrogen Sources for Ruminants
Alternate Nitrogen Sources for Ruminants

Author:

Publisher:

Published: 1978

Total Pages: 102

ISBN-13:

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The non-protein nitrogen (NPN) conference was organized to bring together the advancements in ruminant nutrition, to establish the extent of use of agricultural waste as ruminant feeds, and to assess the role of NPN, particularly animal waste in further development of livestock and poultry enterprises in the region.

State-of-the-art Waste Heat Utilization for Agriculture and Aquaculture
State-of-the-art Waste Heat Utilization for Agriculture and Aquaculture

Author:

Publisher:

Published: 1978

Total Pages: 446

ISBN-13:

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A state-of-the-art assessment of research, demonstration, and commercial projects that involve the use of power plant condenser cooling water for agricultural and aquacultural purposes was conducted. Information was obtained from published literature, site visits, and communications with knowledgeable individuals. Thermal effluent uses were discussed for controlled environment greenhouses, biological recycling of nutrients from livestock manures, soil heating and irrigation, environmental control for livestock housing, grain drying, food processing, as well as the culture of numerous aquatic organisms. A large number of research and feasibility studies have been conducted, but few commercial enterprises are utilizing thermal effluent. Interfacing problems, environmental and legal restrictions, along with insufficient technology, have not allowed widespread commercial application. Specific research needs were discussed.

Alternative and Novel Livestock Feed: Reducing Environmental Impact
Alternative and Novel Livestock Feed: Reducing Environmental Impact

Author: Francesco Serrapica

Publisher: Frontiers Media SA

Published: 2024-07-29

Total Pages: 238

ISBN-13: 2832552358

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Livestock production systems are generally considered to have various negative environmental impacts, including nutrient leaching, and a significant contribution to global warming. In this respect, the reduction of gas or ammonia emissions can be achieved through improved efficiency in the choice of feedstuffs. The use of alternative feeds or additives can contribute to a more energy-efficient ration with lower emissions. Such strategies can contribute to improved animal production and health status. Studies have reported that feed additives such as nitrogen-containing compounds, probiotics, prebiotics, and plant extracts significantly reduce ruminant methane. Moreover, research suggested that fruit pomaces could be a low-cost fibre source in poultry nutrition, and that the inclusion of orange pulp in pigs’ diets can reduce the potential ammonia and methane emissions. To properly evaluate the most adequate reuse strategy it is necessary a specific life cycle assessment for each co-product.