Evolution of NH3 Concentrations in Weaner Pig Buildings Based on Setpoint Temperature

Rodríguez, Manuel R.; Losada, Eugenio; Besteiro, Roberto; Arango, Tamara; Velo, R.; Ortega, Juan Antonio; Fernández, María José Alonso

doi:10.3390/agronomy10010107

Cited by 18 publications

(16 citation statements)

References 45 publications

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“…The daily evolution of NH 3 concentration showed a sinusoidal response for weaned piglets [60], which is in agreement with the results for odor and pollutant emission from finishing pigs [51]. NH 3 concentration in the animal-occupied zone varies with the temperature setpoint defined for the climate control system.…”

Section: Concentration Of Gasessupporting

confidence: 88%

“…At night, when air temperature is lower, the ventilation rate decreases, which causes an increase in NH 3 concentration. [50,52,60,61].…”

Section: Concentration Of Gasesmentioning

confidence: 99%

“…NH 3 concentration patterns were strongly influenced by ventilation, which, in turn, was affected by setpoint temperatures. Sine wave equations provide a reliable pattern for real-time estimation of NH 3 concentration [51,60] therefore can be implemented in many conventional controllers because of their simplicity.…”

Section: Environmental Control Systemsmentioning

confidence: 99%

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Analyzing and Modeling Environmental and Production Variables in Weaned Piglet Farms

Rodriguez¹,

Besteiro²,

Arango³

et al. 2020

Prime Archives in Agricultural Research

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Environmental variables and animal activity were analyzed to improve environmental control systems in conventional post weaning livestock buildings. Post weaning is a very sensitive phase in the rearing of piglets from 5 to 20 kg, mainly influenced by separation from the sow, mixing of litters and changes in diet or environment. For this reason, environmental requirements are Prime Archives in Agricultural Research 2 www.videleaf.com strict and changing. To achieve these requirements, livestock buildings have ventilation and heating systems, usually regulated by temperature-based controls. In addition to temperature, other important environmental variables include relative humidity, CO 2 and NH 3 concentrations. Other variables that characterize the state of the animal, such as animal activity, should be added to the environmental variables in order that indoor climate and animal behavior may serve as the basis for new environmental control strategies. Such strategies should contribute to achieving maximum performance with the lowest possible use of resources, while focusing on animal welfare and production efficiency.

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Section: Concentration Of Gasessupporting

confidence: 88%

“…At night, when air temperature is lower, the ventilation rate decreases, which causes an increase in NH 3 concentration. [50,52,60,61].…”

Section: Concentration Of Gasesmentioning

confidence: 99%

See 1 more Smart Citation

Analyzing and Modeling Environmental and Production Variables in Weaned Piglet Farms

Rodriguez¹,

Besteiro²,

Arango³

et al. 2020

Prime Archives in Agricultural Research

Self Cite

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show abstract

“…When air characterized by a high speed passes over the free surface of the manure, the emissions increase. Rodriguez et al [39] found an inverse behavior between NH 3 concentration and relative humidity, and a direct relation between NH 3 concentration and indoor air temperature in weaning rooms, results that are similar to the ones of Banhazi [35].…”

Section: Climate Control and Air Emissionssupporting

confidence: 54%

The Role of Climate Control in Monogastric Animal Farming: The Effects on Animal Welfare, Air Emissions, Productivity, Health, and Energy Use

2021

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In the last decades, an engineering process has deeply transformed livestock houses by introducing fine-tuned climate control systems to guarantee adequate indoor climate conditions needed to express the maximum genetic potential of animals and to increase their productivity. Climate control, hence, has strong relation with productivity but also with other livestock production domains, outlining a web of mutual relations between them. The objective of this work is to understand the actual role of climate control in intensive livestock houses by unpicking this web of mutual relations through a literature review. The results show that climate control plays a key role in intensive livestock houses since it has strong relations with animal welfare, air emissions, productivity, health, and energy use. These relations make it essential to adopt an integrated approach for the assessment of the effectiveness of any proposed improvement in the different domains of livestock production. This is especially true considering aspects such as the expected increase of livestock production in developing countries and global warming. For this purpose, integrated climate control models of livestock houses are needed, representing a challenging opportunity for performing investigations in this research field.

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“…The most important factors affecting this process are the urinary urea concentration, pH and slurry temperature (Colina et al, 2000). NH3 concentrations in swine buildings show large variations and are related to a number of factors, including animal age, activity and density, outdoor temperature, ventilation control (Rodriguez, 2020). Ammonia emissions are obviously influenced by season with typically higher emission rates during summer time (about 7.0 g NH3/pig/day) and lower emission during winter time (about 3.0 NH3/pig/day).…”

Section: )mentioning

confidence: 99%

Emissions of Gaseous Pollutants from Pig Farms and Methods for their Reduction – A Review

Chmielowiec-Korzeniowska

Tymczyna

Wlazło

et al. 2022

Annals of Animal Science

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Agriculture contributes significantly to anthropogenic emissions of greenhouse gases (GHG). Livestock production, including pig production, is associated with several gaseous pollutants released into the atmosphere, including carbon dioxide (CO2), methane (CH4), ammonia (NH3) and nitrous oxide (N2O). Emissions of volatile organic compounds (VOCs), including alcohols, aldehydes, and aromatic and aliphatic hydrocarbons, as well as typically odorous pollutants, are an inseparable element of raising and breeding farm animals. These emissions can degrade local and regional air quality, contribute to surface water eutrophication and acid rain, and increase the greenhouse gas footprint of the production sector. The paper is organized as follows. First, the sources and factors influencing the level of emissions from pig houses are described. Next, the effects of dietary methods (optimization of animal diets), hygienic methods (including microclimate optimization) and technological methods (application of technological solutions) for mitigating emissions from pigs are discussed.

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Evolution of NH3 Concentrations in Weaner Pig Buildings Based on Setpoint Temperature

Cited by 18 publications

References 45 publications

Analyzing and Modeling Environmental and Production Variables in Weaned Piglet Farms

Analyzing and Modeling Environmental and Production Variables in Weaned Piglet Farms

The Role of Climate Control in Monogastric Animal Farming: The Effects on Animal Welfare, Air Emissions, Productivity, Health, and Energy Use

Emissions of Gaseous Pollutants from Pig Farms and Methods for their Reduction – A Review

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