Ammonia and methane emissions from small herd cattle buildings in a cold climate

Tabase, Raphael Kubeba; Næss, Geir; Larring, Yngve

doi:10.1016/j.scitotenv.2023.166046

Cited by 8 publications

(16 citation statements)

References 46 publications

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“…In the swine industry, the release of ammonia gases and offensive odorous compounds, including volatile fatty acids (VFA) and volatile organic compounds, has been noticed due to environmental issues. Ammonia gases are produced in pig slurry due to the hydrolysis of urea by the action of urease [ 1 ]. The emission of ammonia gases results in the formation of fine particulates and the eutrophication of ecosystems [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Supplemental Benzoic Acid, Bromelain, Adipic Acid, and Humic Substances on Nitrogen Utilization, Urine pH, Slurry pH, and Manure Odorous Compounds in Pigs

Yoo,

Song,

Seo

et al. 2023

Animals

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The objective was to evaluate the effects of benzoic acid, bromelain, adipic acid, and humic substance supplementation on nitrogen balance, urinary pH, slurry pH, and manure odorous compounds in pigs. Fifteen castrated male pigs with an initial body weight of 37.9 kg (standard deviation = 4.1) were individually housed in metabolism crates. The animals were allocated to a triplicated 5 × 2 incomplete Latin square design with 15 animals, 5 experimental diets, and 2 periods. The basal diet mainly consisted of corn, soybean meal, and rapeseed meal. Four experimental diets were prepared by supplementing each additive at a concentration of 10 g/kg at the expense of corn starch to the basal diet. Each period consisted of a 4-day adaptation period, a 24 h collection period for slurry sampling, and a 4-day collection period for feces and urine. The feces and urine collected for 24 h on day 5 were mixed at a ratio of fecal weight and urine weight to obtain slurry samples. The apparent total tract digestibility N in pigs fed the humic substance diet was the least (p < 0.05) compared to the other groups. The daily retained N and N retention as % ingested tended (p < 0.10) to be the lowest in the adipic acid group among the treatments. The urinary pH in pigs fed the adipic acid diet was less (p < 0.05) than that in other groups except the benzoic acid group. The slurry pH tended to differ among the treatment groups (p = 0.074) with the lowest value in the pigs fed the adipic acid diet. The concentrations of indole in slurry (p = 0.084) and isovalerate in feces (p = 0.062) tended to differ among the groups with the lowest values in the pigs fed the humic substance diet. In conclusion, adipic acid supplementation in pig diets can decrease urinary pH and slurry pH. Although benzoic acid and adipic acid have limited effects in reducing odorous compounds, humic substances have the potential to reduce some odorous compounds.

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Section: Introductionmentioning

confidence: 99%

“…1 Data are least squares means of 6 observations. 2 Each of benzoic acid, adipic acid, bromelain, and humic substances was supplemented to the control diet at 1% at the expense of corn starch.…”

mentioning

confidence: 99%

Effects of Supplemental Benzoic Acid, Bromelain, Adipic Acid, and Humic Substances on Nitrogen Utilization, Urine pH, Slurry pH, and Manure Odorous Compounds in Pigs

Yoo,

Song,

Seo

et al. 2023

Animals

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“…The origins of air pollution are multifaceted, with agriculture constituting one of the principal sectors responsible for these emissions [7]. The various activities associated with agrofarming, including crop cultivation, livestock farming, and the use of machinery, fertilizers, and pesticides, lead to the release of a range of pollutants into the atmosphere [8][9][10]. Agriculture, in particular, emerges as the primary contributor to ammonia emissions [11], a gaseous compound that plays a significant role in the genesis of fine particulate matter PM2.5 [12].…”

Section: Introductionmentioning

confidence: 99%

Assessing air pollution emissions vs. abatement costs in agricultural practices

Arrighini,

Guariso,

Volta

et al. 2023

Academia Engineering

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Agriculture is a vital component of human civilization, providing food, fiber, and fuel for billions of people worldwide. However, the agricultural sector has also been identified as a significant contributor to air pollution. This study investigates and analyses the impact of agrofarming activities on air pollution in very productive areas such as Northern Italy. It explores the various sources and mechanisms through which agriculture affects air quality compared to all the other emission sectors and the types of pollutants involved, and quantifies the consequences for human health of agricultural emissions. As a further and novel step, it highlights the technologies that can mitigate these negative impacts and promote sustainable agriculture by adopting an integrated assessment modeling approach. This study defines policy recommendations for the area at hand, determining the optimal compromises between air quality improvement and pollution abatement costs. For instance, it shows that it is possible to reduce the average PM2.5 concentration by 17% with an annual expenditure of 300 M€. Four percent of this improvement is due to end-of-pipe abatement measures in the agricultural sector. Such an improvement in air quality would translate into a reduction of tens of thousands of years of life lost by the resident population. This study concludes with an outlook of additional options for addressing the air pollution challenges associated with agro-farming activities that constitute a limit of the current study, but could open new research lines.

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“…However, open cattle barns are often associated with overventilation, which results in low CH 4 concentrations. That is, whereas CH 4 concentrations between 250 and 10000 ppm are regarded optimal for biofiltration of ventilated CH 4 Van Der Werf, 2005, Limbri et al, 2013), typical hourly average indoor CH 4 concentrations in naturally ventilated cattle barns range between 15 to 201 ppm (Tabase et al, 2023, Teye et al, 2008. Methane concentrations, especially at low levels, is a key factor influencing CH 4 oxidation performance in biofilters (Limbri et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Norwegian cattle farms could be an ideal setting to experiment with local ventilation systems for collecting concentrated CH 4 . Given that in Norway, mechanical is more widespread than natural ventilation, and cows stay indoors for a longer time of the year due to the cold temperature (Tabase et al, 2023). Furthermore, during cold seasons when outdoor air temperatures drop below 0 • C, typical air exchange rates inside cattle barns occur at less than 5 every hour in order to satisfy thermal requirements for animals (Tabase et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Effect of Cubicle Hood System on Methane Concentrations Around the Lying Area in Cold Climate Dairy Cattle Buildings

Tabase,

Næss,

Larring

2023

Preprint

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Ammonia and methane emissions from small herd cattle buildings in a cold climate

Cited by 8 publications

References 46 publications

Effects of Supplemental Benzoic Acid, Bromelain, Adipic Acid, and Humic Substances on Nitrogen Utilization, Urine pH, Slurry pH, and Manure Odorous Compounds in Pigs

Effects of Supplemental Benzoic Acid, Bromelain, Adipic Acid, and Humic Substances on Nitrogen Utilization, Urine pH, Slurry pH, and Manure Odorous Compounds in Pigs

Assessing air pollution emissions vs. abatement costs in agricultural practices

Effect of Cubicle Hood System on Methane Concentrations Around the Lying Area in Cold Climate Dairy Cattle Buildings

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