Page 7 of articles about ammonia

Effect of biofuel co-products in pig diets on the excretory patterns of N and C and on the subsequent ammonia and methane emissions from pig effluent

This study was conducted to investigate the effects of incorporation into pig diets of 20% of different co-products from the biofuel industries on animal growth performance, on N and carbon C excretions, and on the subsequent ammonia volatilisation and methane production during the storage of slurry.

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NutritionAbstract

Reduction of greenhouse gas emission from swine manure by using a low-protein diet with synthetic amino acids

Under ad libitum feeding, a low crude protein amino acid supplemented diet can reduce N excretion in manure with no impact on animal growth.

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NutritionAbstract

Effects of type of cereal and fibre level on growth and parameters of the gastrointestinal tract in young pigs

Fermentable carbohydrates as a way to reduce protein fermentation and to promote beneficial microbial populations in piglets fed rice based diets.

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News

Bulgaria - MAF has prepared a program to reduce pollution caused by nitrates

Since the beginning of this year a program on measures for restricting and liquidating nitrate pollution from agricultural sources in vulnerable zones came into force. Application period is from January 1, 2011 to December 31, 2014 The program is compulsory for all farmers of nitrate vulnerable zones in the country.

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Netherlands – Estimates on ammonia emissions in 2020

The Agrarian Research Institute of the University of Wageningen (LEI) has carried out a study on the estimation of ammonia emissions in 2020. According to data obtained, emissions will reach 100 million kilograms, which, in comparison with 2007, represents a decrease of 20 million kilograms. These figures do not include the use of chemical fertilizers in the greenhouse horticulture sector and the gardening sector, nor co-fermentation.

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USA - Swine generate variety of emissions for producers to consider, poultry producers focus on ammonia issues

A Council for Agricultural Science and Technology study on North American air quality has been released, focusing on the topic as it relates to the areas of swine, poultry, dairy and beef farming.

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Abstract

Impact of temperature control strategies on animal performance, gas emissions and energy requirements for grower‐finisher pigs

The objectives of this study were to compare the impact of three control strategies of temperature set point on grower‐finisher pigs and their growth performance, ammonia emissions, and heating energy consumption under Québec conditions.

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Abstract

The Effect of Dietary Sodium Humate Supplementation on Nutrient Digestibility in Growing Pigs

A total of 16 crossbred (Large White × Landrace) castrated male pigs averaging 30.0 ± 2.5 kg were used in two trials (2 × 8 pigs) to determine apparent nutrient digestibility. The control group received feed mixture consisting of wheat and barley. In the experimental group, 3% proportion of wheat was replaced by sodium humate.

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Farming systems and environment: Effects of available surface on gaseous emissions from group-housed gestating sows kept on deep litter

In the European Union, the group-housed pregnant sows have to have a minimal legal available area of 2.25 m2/sow. However, it has been observed that an increased space allowance reduces agonistic behaviour and consecutive wounds and thus induces better welfare conditions. But, what about the environmental impacts of this greater available area?

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Abstract

Farm practices survey and modelling to estimate monthly NH3 emissions from swine production in 12 Ecoregions of Canada

This paper describes a new model to estimate NH3 emissions from the swine sector, relying heavily on a recent survey of swine producers to determine the present N and manure management practices.

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News

Spain - MARM presents ECOGAN

The Spanish Minister of Agriculture has presented the software ECOGAN, an application for the estimation of emissions and consumption of resources in farms.

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Abstract

Comparison of ammonia and greenhouse gas emissions from fattening pigs kept either on partially slatted floor in cold conditions or on fully slatted floor in thermoneutral conditions

Continuous measurements of ammonia and greenhouse gas were achieved on exhaust air from two fattening rooms differing by the type of floor (totally slatted vs partially slatted floor) and the ambient temperature. Temperature was regulated at 18°C in the room with partially slatted floor (room CP18) and 24°C in the room with fully slatted floor (CI24).

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ManagementArticle

Environmental control in the growing phase (I): Checking the environment

Man is possibly the only animal capable of living in practically all places in the world, regardless of the climate. This is due to his capacity to construct buildings to isolate himself from the climate however extreme it may be, maintaining an environment which allows him to survive. As domestic animals live together with man, they have to take advantage indirectly of this capacity.