Factors affecting the Release and Concentration of Dust in Pig Houses

Gustafsson, G.

doi:10.1006/jaer.1999.0476

Cited by 52 publications

(45 citation statements)

References 8 publications

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“…In general the seasonal variation of indoor PM concentrations was clearly influenced by ventilation rate, determined by environmental conditions. The present results show that the indoor PM concentration decreased at increasing ventilation rate and indoor relative humidity, which is consistent with the findings of previous studies (Gustafsson, 1999;Haeussermann et al, 2008). Many other factors such as feeding operations, animal activity, number of animals, and animal weight, which affect PM generation and levels, are also considered to affect the seasonal variances (Cambra-López et al, 2010).…”

Section: Pm Concentrations and Emissionssupporting

confidence: 92%

Concentrations and Emissions of Particulate Matter from Intensive Pig Production at a Large Farm in North China

Zheng

Meng

et al. 2016

Aerosol Air Qual. Res.

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Particulate matter (PM) pollution from pig farms is of increasing environmental concern due to the rapid development of intensively managed pig farms worldwide. However, information on this topic is scarce in China to date. Therefore a two-year study to monitor the dynamics of total suspended particles (TSP) and particulate matter with diameter less than 10 µm (PM 10 ) and their soluble ions was conducted at an industrial pig farm near Beijing. In total, two fattening pig houses were sampled during three fattening periods from 2010 to 2011. Daily mean indoor TSP and PM 10 concentrations were 1.85 and 0.63 mg m -3 on average.

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Section: Pm Concentrations and Emissionssupporting

confidence: 92%

Concentrations and Emissions of Particulate Matter from Intensive Pig Production at a Large Farm in North China

Zheng

Meng

et al. 2016

Aerosol Air Qual. Res.

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“…Possible reasons for a positively significant relationship between pig activity and total dust could be explained by previous findings that the activity in pig buildings has a strong effect on the concentration of dust in the air (Pederson 1993;Gustafsson 1999). However, no significantly positive relationship between pig activity and the concentration of respirable dust was found and this result is contrary to the finding that active pigs cause markedly higher respirable dust levels (Morrison et al 1993).…”

Section: Discussioncontrasting

confidence: 56%

Association between pig activity and environmental factors in pig confinement buildings

Kim

et al. 2008

Aust. J. Exp. Agric.

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Abstract. The aim of this study was to determine the aerial contaminants affecting pig activity and evaluate the correlation between pig activity and aerial contaminants in a pig confinement building. This experiment was performed in a confinement growing and finishing room, and the data presented in this article was collected over a period of 50 days, with sampling every 2 days from June to September 2003. Air samples were taken in the middle of empty pens on both sides of the pig confinement building. In this study, we demonstrated statistically significant negative relationships between pig activity and temperature, relative humidity and ammonia, while total dust positively regressed with pig activity. Based on these experimental results, we reasoned that increases in temperature, hydrogen sulfide and ammonia in the pig building suppressed pig activity and that high levels of total dust in the pig building was attributable to increases in pig activity. The exposure limit values of aerial contaminants, such as particulate matter, gaseous compounds and airborne microorganisms related to the pigs' health should be established in order to promote the performance and welfare of the pigs.

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“…The dust concentration measured in the air from the CON system (1.5 mg/m 3 ) is in agreement with the value measured by Robertson et al (1990) and Guingand (2007). Dust concentration was similar in both systems, whereas Gustafsson (1999) measured a lower dust concentration in piggeries with straw bedding. He suggested that this lower concentration was due to a higher ventilation rate and humidity, which was not the case in our study.…”

Section: Discussionmentioning

confidence: 77%

Influence of pig rearing system on animal performance and manure composition

Dourmad

Hassouna²,

Robin³

et al. 2009

Animal

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A total of 200 crossbred pigs (castrated males and females) were used in five replicates to evaluate the influence of rearing conditions for fattening pigs on growth performance, manure production and gaseous emissions. Approximately at 36 kg body weight (BW), littermates were allocated to either a conventional (fully slatted floor, 0.65 m 2 /pig, considered as control, CON) or an alternative (sawdust bedding, 1.3 m 2 /pig, with free access to an outdoor area 1.1 m 2 /pig, OUT) system, until slaughter at approximately 115 kg BW. Pigs had free access to standard growing and finishing diets. Manure was stored as slurry below the slatted floor in the CON system and as litter, for the inside area, or slurry and liquid, for the outside area, in the OUT system. The amount and composition of manure were determined at the end of each replicate. Ammonia emission from the rooms was measured continuously. Dust and odour concentrations were measured in replicates 1 and 2, and CH 4 , N 2 O and CO 2 emissions were measured in replicate 3. Compared with the CON, the OUT pigs exhibited a faster growth rate (18%, P , 0.001) due to their greater feed intake (10.21 kg/day, P , 0.01), resulting in a heavier BW (17.3 kg, P , 0.001) and a lower lean meat content (21.6% points, P , 0.001) at slaughter. The total amount of manure produced per pig was similar in both systems (380 kg/pig), but because of the contribution of sawdust, dry matter (DM) content was higher ( P , 0.001) and concentrations in N, P, K, Cu and Zn in DM were lower ( P , 0.001) in manure from the OUT than from the CON system. In the OUT system, most of the manure DM (70%) was collected indoor, corresponding mostly to the contribution of the sawdust, and most of the manure water (70%) was collected outdoor. Pigs excreted indoor about 60% and 40% of urine and faeces, respectively. Ammonia emission from the room was lower for the OUT system, whereas total NH 3 emissions, including the outdoor area, tended to be higher (12.0 and 14.1 g/day N-NH 3 per pig for CON and OUT, respectively). Nitrous oxide emission was higher (1.6 and 4.6 g/day N-N 2 O per pig for CON and OUT, respectively) and methane emission was lower (12.1 and 5.9 g/day per pig for CON and OUT, respectively), for the OUT compared with the CON system.

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Factors affecting the Release and Concentration of Dust in Pig Houses

Cited by 52 publications

References 8 publications

Concentrations and Emissions of Particulate Matter from Intensive Pig Production at a Large Farm in North China

Concentrations and Emissions of Particulate Matter from Intensive Pig Production at a Large Farm in North China

Association between pig activity and environmental factors in pig confinement buildings

Influence of pig rearing system on animal performance and manure composition

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