A Survey of Particulate Matter on California Dairy Farms

Garcia, Johnny; Bennett, Deborah H.; Tancredi, Daniel J.; Schenker, Marc B.; Mitchell, Diane C.

doi:10.2134/jeq2012.0169

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…Although ruminant meat is well known for its high environmental pressures from GHGe and land use (Clark et al, 2018; Poore and Nemecek, 2018), our study has shown that actual protein intake from meat is also associated with other environmental pressures. The particulate matter (PM) production is significantly higher in the diet of people with high intake of protein from ruminant meat, with a high production of PM coming from manure (Garcia et al, 2013). It could be argued that this is not an important issue given the small percentage of particulate matter coming from agriculture compared to other sources like transport (Cambra-López et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Perraud

Wang

Salomé

et al. 2022

Preprint

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Patterns of protein intake are strong characteristics of diets, and protein sources have been linked to the environmental and nutrition/health impacts of diets. However, few studies have worked on protein profiles, and most of them have focused on specific diets like vegetarian or vegan diets. Furthermore, the description of the environmental impact of diets has often been limited to greenhouse gas emissions (GHGe) and land use. This paper analyzes the alignment of environmental pressures and nutritional impacts in a diversity of representative protein profiles of a western population. Using data from a representative survey in France (INCA3, n = 1,125), we identified protein profiles using hierarchical ascendant classification on protein intake (g) from main protein sources (refined grains, whole grains, dairy, eggs, ruminant meat, poultry, pork, processed meat, fish, fruits & vegetables, pulses). We assessed their diet quality using 6 dietary scores, including assessment of long-term risk for health, and associated 14 environmental pressure indicators using the Agribalyse database completed by the SHARP database for GHGe. Five protein profiles were identified according to the high contributions of ruminant meat, pork, poultry, fish, or, conversely, as low contribution from meat. The profile including the lowest protein from meat had the lowest impact on almost all environmental indicators and had the lowest long-term risk. Conversely, the profile with high protein from ruminant-based foods had the highest pressures on most environmental indicators, including GHGe. We found that the protein profile with low contribution from meat has great potential for human health and environment preservation. Shifting a large part of the population toward this profile could be an easy first step toward building a more sustainable diet.

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Section: Discussionmentioning

confidence: 99%

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Perraud

Wang

Salomé

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The particulate matter (PM) production is significantly higher in the diet of people with high intake of protein from ruminant meat. This is in part ascribed to ruminant meat with a high production of PM coming from manure (Garcia et al, 2013). It could be argued that this is not an important issue given the small percentage of particulate matter coming from agriculture compared to other sources like transport (Cambra-López et al, 2010).…”

Section: Environmental Differences Between Profilesmentioning

confidence: 99%

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Perraud

Wang

Salomé

et al. 2023

Science of The Total Environment

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“…However, particulate matter smaller than 2.5 μm in diameter (PM 2.5 ) is considered a health hazard to humans and animals because it can pass through the respiratory tract to the lung alveoli [1,2,3] and therefore of major interest. These fine particles can carry gases and microbes into the lung [4].…”

Section: Introductionmentioning

confidence: 99%

Impact of Feed Delivery Pattern on Aerial Particulate Matter and Behavior of Feedlot Cattle †

Dailey

Morrow

McGlone

2017

Animals

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Simple SummaryFine particulate matter (with less than 2.5 microns diameter; aka PM2.5) are a human and animal health concern because they can carry microbes and chemicals into the lungs. Particulate matter (PM) in general emitted from cattle feedlots can reach high concentrations. When feedlot cattle were given an altered feeding schedule (ALT) that more closely reflected their biological feeding times compared with conventional morning feeding (CON), PM2.5 generation at peak times was substantially lowered. Average daily generation of PM2.5 was decreased by 37% when cattle behavior was redirected away from PM-generating behaviors and toward evening feeding behaviors. Behavioral problems such as agonistic (i.e., aggressive) and bulling (i.e., mounting each other) behaviors also were reduced several fold among ALT compared with CON cattle. Intake of feed was less and daily body weight gain tended to be less with the altered feeding schedule while efficiency of feed utilization was not affected. Although ALT may pose a challenge in feed delivery and labor scheduling, cattle had fewer behavioral problems and reduced PM2.5 generation when feed delivery times matched with the natural drive to eat in a crepuscular pattern.AbstractFine particulate matter with less than 2.5 microns diameter (PM2.5) generated by cattle in feedlots is an environmental pollutant and a potential human and animal health issue. The objective of this study was to determine if a feeding schedule affects cattle behaviors that promote PM2.5 in a commercial feedlot. The study used 2813 crossbred steers housed in 14 adjacent pens at a large-scale commercial West Texas feedlot. Treatments were conventional feeding at 0700, 1000, and 1200 (CON) or feeding at 0700, 1000, and 1830 (ALT), the latter feeding time coincided with dusk. A mobile behavior lab was used to quantify behaviors of steers that were associated with generation of PM2.5 (e.g., fighting, mounting of peers, and increased locomotion). PM2.5 samplers measured respirable particles with a mass median diameter ≤2.5 μm (PM2.5) every 15 min over a period of 7 d in April and May. Simultaneously, the ambient temperature, humidity, wind speed and direction, precipitation, air pressure, and solar radiation were measured with a weather station. Elevated downwind PM2.5 concentrations were measured at dusk, when cattle that were fed according to the ALT vs. the CON feeding schedule, demonstrated less PM2.5-generating behaviors (p < 0.05). At dusk, steers on ALT vs. CON feeding schedules ate or were waiting to eat (standing in second row behind feeding cattle) at much greater rates (p < 0.05). Upwind PM2.5 concentrations were similar between the treatments. Downwind PM2.5 concentrations averaged over 24 h were lower from ALT compared with CON pens (0.072 vs. 0.115 mg/m3, p < 0.01). However, dry matter intake (DMI) was less (p < 0.05), and average daily gain (ADG) tended to be less (p < 0.1) in cattle that were fed according to the ALT vs. the CON feeding schedules, whereas feed efficiency (aka gain to...

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A Survey of Particulate Matter on California Dairy Farms

Cited by 6 publications

References 17 publications

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Dietary protein consumption profiles show contrasting impacts on environmental and health indicators

Impact of Feed Delivery Pattern on Aerial Particulate Matter and Behavior of Feedlot Cattle †

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