Animal Feeding Operations Research Articles

Flesh Without Blood: The Public Health Benefits of Lab‐Grown Meat

Synthetic meat made from animal cells will transform how we eat. It will reduce suffering by eliminating the need to raise and slaughter animals. But it will also have big public health benefits if it becomes widely consumed. In this paper, we discuss how “clean meat” can reduce the risks associated with intensive animal farming, including antibiotic resistance, environmental pollution, and zoonotic viral diseases like influenza and coronavirus. Since the most common objection to clean meat is that some people find it “disgusting” or “unnatural,” we explore the psychology of disgust to find possible counter-measures. We argue that the public health benefits of clean meat give us strong moral reasons to promote its development and consumption in a way that the public is likely to support. We end by depicting the change from farmed animals to clean meat as a collective action problem and suggest that social norms rather than coercive laws should be employed to solve the problem.

Addressing Behavior and Policy Around Meat: Associating Factory Farming With Animal Cruelty “Works” Better Than Zoonotic Disease

ABSTRACT Research on shifting attitudes or behaviors surrounding the use of animal products traditionally focuses on animal cruelty. How this approach may differ from exposure on the zoonotic disease transmission risk factory farms pose is unclear. The present study sought to examine how information regarding zoonotic disease may stimulate concern for animals/concern for human health, respectively, and thus predict lower willingness to consume meat, when compared with animal cruelty and a control condition. The extent to which such information could shift support for changing conditions on factory farms was also examined. In a preregistered experiment (n = 454), participants were exposed to an informative paragraph on either (a) zoonotic disease transmission risk from factory farming, (b) animal cruelty on factory farms, or (c) a control paragraph. Those in the animal-cruelty condition were significantly more likely to indicate lower meat consumption willingness and higher support for changing conditions on factory farms, when compared with the two other conditions. Concern for animal health and welfare mediated the relationship between the combined experimental conditions and both dependent variables, when compared with the control condition. Upon examining the moderating role of human supremacy beliefs (HSB), a conditional effect was found across all conditions, with higher HSB predicting higher meat consumption willingness and lower support for changing conditions on factory farms. This study offers evidence for the intervention potential of informative excerpts. These findings also emphasize animal cruelty as a more effective way to mobilize support for behaviors and policies aimed at reducing animal-product consumption.

Simulation of Capillary Electrophoresis for CAFO Waste Analysis

CAFO (Concentrated animal feed operations) wastewater is a promising source for fertilizer to apply to soils in agriculture. However the overapplication of nutrients is just as much of a problem as underapplication [1,2]. The waste material requires analysis of the ionic composition prior to enrichment as a fertilizer. Current methods for ion concentration analysis including Ion Chromatography, Flow Injection Analysis, and High Pressure Liquid Chromatography, which are laboratory instruments. Although some development of portable instruments has been undertaken by NASA/JPL and other groups [3], these techniques are not yet suitable for low cost portable analysis systems. Capillary Electrophoresis methods have been applied to analysis of lake water [4], biological samples [5], food [6], agricultural products [7] providing a rapid analysis at lower cost than laboratory tests. In this study simulated capillary electrophoresis for the separation of several essential plant nutrients in their anionic forms: sulfate, nitrate, chloride, and phosphate was undertaken. The relative concentrations for these anions were chosen to be similar to those found in [8.9] with a 1:100 dilution. The conditions for the separation are listed in Table 1.Several buffer solutions were simulated including borate, sodium phosphate, and the combination of lactic acid and histidine. Separations using borate and sodium phosphate caused the four anions to elute in less than one minute in most cases, which could lead to their misidentification as they are eluting too rapidly. Separations using lactic acid and histidine were slower, but consequently had more time between each peak allowing for an easier detection. The total separation time can be tailored through the concentration of the two buffer components while still allowing greater time between elutions.

Geospatial and co-occurrence analysis of antibiotics, hormones, and UV filters in the Chesapeake Bay (USA) to confirm inputs from wastewater treatment plants, septic systems, and animal feeding operations

Previous studies have reported select contaminants of emerging concern (CECs) in limited areas of the Chesapeake Bay (USA), but no comprehensive efforts have been conducted. In this work, 43 antibiotics, 9 hormones, 11 UV filters, and sucralose, were measured in matched water, sediment, and oyster samples from 58 sites. The highest sucralose concentration was 3051 ng L-1 in a subwatershed with 4.43 million liters of wastewater effluent per day (MLD) and 4385 septic systems. Although antibiotic occurrence was generally low in subwatersheds located in less populated areas, 102 ng L-1 ciprofloxacin was detected downstream of 0.58 MLD wastewater effluent and 10 animal feeding operations. Hormones were not regularly detected in water (2%) or oysters (37%), but the high detection frequencies in sediment (74%) were associated with septic systems. UV filters were ubiquitously detected in oysters, and octisalate exhibited the highest concentration (423 ng g-1). Oyster-phase oxybenzone and aqueous-phase sucralose concentrations were significantly correlated to wastewater effluent and septic systems, respectively. Toxicity outcomes were predicted for homosalate and octisalate throughout the Bay, and antimicrobial resistance concerns were noted for the Chester River. The geospatial and co-occurrence relationships constitute crucial advances to understanding CEC occurrence in the Chesapeake Bay and elsewhere.

Enhanced photodegradation of p-arsanilic acid by oxalate in goethite heterogeneous system under UVA irradiation.

The widespread used organoarsenicals have drawn attention for decades due to their potential environment risks. In this study, a heterogeneous system of goethite/oxalate irradiated using UVA light (λ = 365 nm) was applied for the removal of ASA, a kind of organoarsenicals used in animal feeding operations as additives, from the aqueous phase through photodegradation. Results showed that the presence of 5 mM of oxalate significantly enhanced the photodegradation efficiency of ASA in the 0.1 g/L of goethite suspended system from 28 to ~100% within 180 min reaction at pH 5. Acid conditions favored the photoreaction rate, compared with neutral and basic conditions. This reaction process was also influenced by the initial concentration of oxalate and ASA. Furthermore, the mechanism study was conducted by quenching experiments and revealed the important roles of·OH in the degradation of ASA in the goethite/oxalate/UVA system. By analyzing the reaction products, both inorganic arsenic (As(III) and As(V)) and ammonia were detected during the photodegradation of ASA. These findings help to gain a better understanding of the geochemical behavior of ASA in surface water and can also provide a potential treatment method for the organoarsenicals contaminated water.

Fair Trade factory farms: a false solution to a real problem

The dairy industry is in crisis in countries throughout the world. Rising industrialization in the sector coupled with corporate consolidation is harming small-scale farmers. Indeed, low milk prices and control over regional processing benefits processors and brands, who gain profits even as farmers and farmworkers suffer. Around the globe, various initiatives have endeavoured to address the issues facing dairy production through a Fair Trade lens. This article briefly surveys these initiatives and then examines in depth a new ‘Fair Trade dairy’ label recently released by Fair Trade USA that has been developed and piloted with Chobani and Dairy Farmers of America. This article examines the particulars of that standard as well as posing the question whether the values and principles of Fair Trade are even applicable to industrial animal agriculture.

Localized pollution of veterinary antibiotics in watersheds receiving treated effluents from swine farms

Swine excrement is discharged into surface waters mainly as effluent in Asian countries. As swine production consumes more antibiotics and less water than humans, a mismatch of the size of swine farms and that of the rivers receiving their effluent could create severe pollution by antibiotics. However, little is known about the occurrence of antibiotics in such rivers. We therefore monitored seven veterinary drugs, six human drugs (including a metabolite), three drugs for both use (including a metabolite), and major water qualities at 30 sites in Japanese watersheds where swine outnumber humans and where their excrement is largely treated on-site by aerobic biological wastewater processes. The compositions of veterinary drugs differed substantially among sites, unlike human drugs, indicating various patterns of use among swine farms. Median concentrations at the 30 sites were <1 ng/L for seven out of the ten drugs used in livestock, whereas maximum concentrations were >1000 ng/L for three and 100–1000 ng/L for four of them, giving median–maximum among the sites of >3 log for two and 2–3 log for six of them. The spatial distribution ranges of concentrations of veterinary drugs were wider than those of human drugs (mostly <1.5 log) and other analytes (mostly <1 log), despite the correlation between those of total veterinary drugs and nitrogen, attributable to fewer swine farms than households, the intensive animal husbandry, and the various drug-use patterns among the farms. The range of maximum concentrations of veterinary drugs in the watersheds was comparable to those reported in other Asian watersheds with less strict management of swine excrement, attributable to their slow decay in conventional wastewater treatment on swine farms. Thus, attention should be paid to hot-spot pollution of antibiotics on large Asian swine farms adjacent to streams with limited dilution capacity.

Links between industrial livestock production, disease including zoonoses and antimicrobial resistance

AbstractA range of studies indicates that keeping farm animals in crowded, stressful conditions leads to an increased risk of the emergence, transmission, and amplification of pathogens including zoonoses. Some such zoonoses could lead to a pandemic. Biosecurity, though essential, is not on its own sufficient to prevent the entry of disease into large, intensive livestock housing. To minimize disease risks, both biosecurity measures and the keeping of animals in conditions that are supportive of good health and effective immunocompetence are necessary. A further threat to human health arises from the routine use of antimicrobials in intensive livestock production to prevent disease. This high use of antimicrobials contributes significantly to the emergence of antimicrobial resistance in animals, which can then be transferred to people, thereby undermining the efficacy of the antimicrobials that are so important in human medicine. If we want to save our antimicrobials and minimize the risk of future zoonoses and pandemics, we need to move to “health‐oriented systems” for the rearing of animals, systems in which good health is inherent in the farming methods rather than being dependent on the routine use of antimicrobials. Health‐oriented systems should avoid high stocking densities and large group size, should minimize stress and mixing of animals, and ensure that animals can perform their natural behaviors as the inability to do so is highly stressful. They should avoid the use of animals selected for excessive production levels as these appear to involve an increased risk of immunological problems and pathologies.

Modeling and Analysis of Air Pollution and Environmental Justice: The Case for North Carolina's Hog Concentrated Animal Feeding Operations.

Concentrated animal feeding operations (CAFOs) emit pollutants that can cause negative impacts on human health. The concentration of hog production in North Carolina raises concerns regarding the disproportionate exposure of vulnerable communities to air pollution from CAFOs. We investigated whether exposure to gaseous ammonia () and hydrogen sulfide () (in 2019) differs between subpopulations by examining demographics, including race/ethnicity, age, educational attainment, language proficiency, and socioeconomic status. We used an Air Monitoring Station (AMS)/Environmental Protection Agency (EPA) Regulatory Model (AERMOD)-based Human Exposure Model (version 3) to estimate ambient concentrations of and from hog farms in Duplin County and its surrounding counties in North Carolina and estimate subsequent exposures of communities within of Duplin County, North Carolina, or the Duplin County Region. We combined estimated exposures with 2016 American Community Summary Census data, at the block group level, using spatial analysis to investigate whether exposures to these pollutants differ by race and ethnicity, age, income, education, and language proficiency. Based on these estimations, we assessed associated exposure risks to the impacted communities and used multivariable regression modeling to evaluate the relationship between average ammonia exposures from Duplin regional hog farms and the presence of vulnerable populations. The average [] annual estimated concentration of and in the Duplin County Region is and , respectively. The maximum average annual ambient concentrations are estimated at and for and , respectively. Our descriptive analysis reveals that people of low income, people of color, people with low educational attainment, and the linguistically isolated in the Duplin Region are disproportionately exposed to higher levels of pollutants than the average exposure for residents. Alternatively, our statistical results suggests that after adjusting for covariates, communities of color are associated with 1.70% (95% CI: , 0.44) lower concentrations per 1-SD increase. One-standard deviation increases in the adults with low educational attainment and children years of age is associated with 1.26% (95% CI: , 3.33) and 1.20% (95% CI: , 3.05) higher exposure per 1-SD increase, respectively. Exposures to and differed by race and ethnicity, educational attainment, language proficiency, and socioeconomic status. The observed associations between exposure to CAFO-generated pollutants and sociodemographic indicators differed among demographics. The disproportionate distribution of hog facilities and resulting pollutant exposures among communities may have adverse environmental and human health impacts, raising environmental justice concerns. https://doi.org/10.1289/EHP11344.

First Measurement of Ambient Air Quality on the Rural Lower Eastern Shore of Maryland

Concerns about atmospheric ammonia have been expressed recently by some on the Lower Eastern Shore (LES) of Maryland, which lies between the Chesapeake Bay and the Atlantic Ocean on the Delmarva peninsula. Agriculture, seafood and tourism are responsible for a significant fraction of the economic activity on the LES. The USDA 2017 census reported there were ~100 Concentrated Animal Feeding Operations (CAFOs) raising nearly 63 M chickens per year across Somerset and Worcester Counties. We report air quality data collected from sites near Princess Anne, Somerset County, and near Pocomoke City, Worcester County, to address air quality concerns by examining the influence of chicken farms on ammonia in ambient air on the LES. Within a two-mile radius of the Worcester County site, CAFO operations house ~1.6 million birds. The Princess Anne site is comparable to the Pocomoke City site in agricultural use and population demographics but has only a few chicken houses within two miles. The first 33 months of LES ammonia data are presented, and their significance is discussed relative to other ammonia studies. The 33-month average concentration of ammonia in Pocomoke was 10.3 ± 0.08 ppb, more than double that in Princess Anne, which was 4.7 ± 0.04 ppb.

Isolation, characterization, and antimicrobial resistance profiles of Campylobacter jejuni and Campylobacter coli from raw meat of large livestock in Shahrekord, Iran.

Campylobacter spp. genera is one of the most common causes of microbial enteritis worldwide. This study aimed to find out how common Campylobacterorganisms were in raw meat from large livestock in Iran, as well as to determine their antibiotic susceptibility profiles. Several 550 fresh, ready-to-eat meat samples were collected from slaughterhouses, butcher shops, and restaurants in the study region. The samples were collected from cattle (n=138), goats (n=102), camels (n=56), and sheep (n=254). Campylobacter spp. were isolated and identified using normal bacteriological methods and polymerase chain reaction (PCR). Genotyping was performed using PCR to identify virulence genes. The disc diffusion technique was used to determine antibiotic susceptibility. The twoCampylobacter spp. were found in 84 (15.27%) of the 550 meat samples tested. Cattle and camel samples accounted for the highest (52.38%) and lowest (3.57%) frequencies ofCampylobacter spp., respectively. There were significant differences in the prevalence of Campylobacter spp. in cattle (2=43.04 or OR=7.68, CI=3.40-17.30, P<0.01). Campylobacter jejuniandCampylobacter coliaccounted for 82.14% (n=69) of Campylobacter spp. isolated from raw meat.While C. jejuniwas found in 39.28% of the samples (n=33), C. coliwas observed in 42.85% (n=36). OtherCampylobacter spp. formed 17.85 % (n=15) of the samples. The most common genotypes observed in C. jejunibacteria collected from different types of large animal samples were ciaB (100%) and flaA (100%). On the other hand, virbll (7.69%) was theC. jejunistrain found with the lowest incidence in different large animal samples. The most frequent genotypes found inC. colibacteria were ciaB (100%) and flaA (100%).C. coliisolates dnaJ (0%), wlaN (0%), virbll (0%), and ceuE (0%) were detected with the lowest frequency in several samples from large livestock.Campylobacter spp. isolated from different sample types and sources were 100% sensitive to aphA-3-1 and GM10. The isolates were reported to be resistant to E15 (76.93%), cmeB (69.24%), aadE1 (69.24%), CIP5 (69.24%), and AM10 (69.24%). According to this study,Campylobacterwas found in food from factory farming. Consequently, the disease can be transmitted by eating raw or undercooked meat. Therefore, proper handling and preparation of meat meals, as well as hygiene measures from the slaughterhouse to the retailer, are critical in preventing Campylobacter infections.

Technical note: Isolating methane emissions from animal feeding operations in an interfering location

Abstract. Agricultural emissions, including those from concentrated animal feeding operations (CAFOs) for beef and dairy cattle, make up a large portion of the United States' total greenhouse gas (GHG) emissions. However, many CAFOs reside in areas where methane (CH4) from oil and natural gas (ONG) complicates the quantification of CAFO emissions. Traditional approaches to quantify emissions in such regions often relied on inventory subtraction of other known sources. We compare the results of two approaches to attribute the CAFO CH4 emission rate from the total CH4 emission rate derived from an aircraft mass balance technique. These methods make use of the mixing ratio data of CH4, ethane (C2H6), and ammonia (NH3) that were collected simultaneously in-flight downwind of CAFOs in northeastern Colorado. The first approach, the subtraction method (SM), is similar to inventory subtraction, except the amount to be removed is derived from the observed C2H6 to CH4 ratio rather than an inventory estimate. The results from this approach showed high uncertainty, primarily due to how error propagates through subtraction. Alternatively, multivariate regression (MVR) can be used to estimate CAFO CH4 emissions using the NH3 emission rate and an NH3 to CH4 ratio. These results showed significantly less uncertainty. We identified criteria to determine the best attribution method; these criteria can support attribution in other regions. The final emission estimates for the CAFOs presented here were 13 ± 3 g of CH4 per head per hour and 13 ± 2 g of NH3 per head per hour. These estimates are higher than the inventory of the US Environmental Protection Agency (EPA) and previous studies highlighting the need for more measurements of CH4 and NH3 emission rates.

Blanchette, Alex. Porkopolis: American animality, standardized life, and the factory farm. 320 pp., illus., bibliogr. Durham, N.C.: Duke Univ. Press, 2020. £24.99 (paper)

Journal of the Royal Anthropological InstituteEarly View Book and film reviews Blanchette, Alex. Porkopolis: American animality, standardized life, and the factory farm. 320 pp., illus., bibliogr. Durham, N.C.: Duke Univ. Press, 2020. £24.99 (paper) James Staples, James Staples Brunel University LondonSearch for more papers by this author James Staples, James Staples Brunel University LondonSearch for more papers by this author First published: 22 June 2023 https://doi.org/10.1111/1467-9655.13977Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article. Early ViewOnline Version of Record before inclusion in an issue RelatedInformation

Determining Body Condition of Dairy Cows for Early Diagnosis of Physiological Diseases

The paper points out the problem with automated diagnostics of body condition in dairy cattle, including ketosis. The conducted research is aimed at determining the possibility for non-contact automated diagnostics of the cattle physiological state on a daily basis. (Research purpose) To develop an algorithm for complex operational diagnostics of the physiological state of dairy cows by their live weight and body condition. (Materials and methods) Field data were collected in 2021-2022 on the FSUE Grigoryevskoye (Yaroslavl Region), Istra Cheese Factory and Lenin Dairy State Farm (Moscow Region). A commercial 3D ToF (Time-of-Flight) camera O3D303 was used. The 3D camera is capable of calculating and displaying the Point Cloud space as a multidimensional array. The program received 144 images, 136 images passed the filtering stage, 6 images did not detect the areas of interest, because of the high level of image noise, and the sacrum was not detected. 62 cows were subject to research. (Results and discussion) The sample and the dependence are proved to be representative as the Pearson correlation coefficient equals R=0.849, which shows a strong linear relationship between the body condition score and live weight. It was determined that in 24 percent of cases the body condition score is less than the least normal one. An algorithm was developed to help veterinarians to detect the animals that need additional examination. (Conclusions) It was found that the developed algorithm helps to quickly detect ketosis in dairy cows and automatically diagnose physiological diseases at an early stage, without additional labor and monetary costs.

Ammonia Air Stripping from Different Livestock Effluents Prior to and after Anaerobic Digestion

Livestock digestate provides nutrients and organic matter to the soil while increasing agricultural sustainability. Nevertheless, nitrogen (N) losses due to the nutrient surplus in regions characterized by intensive animal farming activities still represent an unsolved issue. For this purpose, digestate needs proper treatment and management to avoid N losses in the environment. In the livestock farming context, anaerobic digestion (AD) can be accompanied by an ammonia stripping (AS) process for N recovery. This paper aims to investigate the feasibility AS prior to and after AD of the manure, focusing on two different livestock farms, representative of dairy cattle and pig breeding in southern Italy. AS was performed at a lab scale by injecting microbubbles of air, which allowed the pH to increase, and thus the removal of ammonia. The results show that treating a dairy raw slurry with high intermediate alkalinity (IA) (6707 mg CaCO3 L−1) with AS may not be convenient in terms of total ammonia nitrogen (TAN) reduction. As a matter of fact, the loss of buffering capacity during the stripping process resulted in a pH never exceeding the value of 9, which could not promote free ammonia volatilization, whereas integrating AD with AS allowed us to obtain a 34% higher TAN reduction under the same stripping conditions at a temperature (T) of 38 °C and a gas-to-liquid ratio (G/L) of 1:1. Therefore, the AS removal efficiency strongly depends on the characteristics (mainly IA) of the treated matrix. High IA values suggest a possible high concentration of volatile fatty acids, which hinders pH increases and, thus, enables ammonia stripping. Despite the initial matrix origin, a low IA compared to the total alkalinity (TA) (&lt;20% of TA) ensures a greater ammonia removal efficiency, which could be similar between digestate and raw manure in the same operative process conditions. Nonetheless, the amount of ammonia stripped is related to the initial TAN concentration of the specific matrix.

Livestock Farmers’ Attitudes towards Alternative Proteins

New food technologies such as cultured meat, precision fermentation, and plant-based alternatives may one day supplant traditional modes of animal farming. Nonetheless, very little is known about how traditional animal farmers perceive these new products, despite being directly impacted by their advance. The present study explored the views of livestock farmers regarding emerging protein alternatives. We used a comparison group of omnivorous non-farmers as a frame of reference. Forty-five UK-based livestock farmers and fifty-three non-farmers read an informative vignette about emerging food technologies that reviewed their advantages vis-à-vis intensive animal agriculture. Afterwards, participants rated four products (plant-based burgers; plant-based milk alternatives; cultured beef; animal-free dairy milk) in terms of their personal appeal and how much they represented a positive change to the market. Participants furthermore voiced their agreement or disagreement towards 26 statements representing potential facilitators or barriers to product acceptance. Overall, farmers rated the four products less appealing and less beneficial to the industry compared to non-farmers. Positive change ratings tended to be higher than personal appeal ratings for all products. Both groups tended to agree that the alternatives offered advantages, particularly for the environment, resource use, food security, and animal treatment, though agreement rates were lower for farmers. Farmers tended to perceive more barriers to acceptance than non-farmers, with ‘threat to farmers’ and ‘lack of support to local farmers’ of paramount concern to both groups. These findings highlight how farmers’ attitudes towards alternative proteins are mixed and, ultimately, shaped by the perceived vulnerability of farming communities.

Fabricant, It's What's for Dinner: Tracing Industrialized Slaughter through Upton Sinclair's The Jungle , Tillie Olsen's Yonnondio: From the Thirties , and David Mitchell's Cloud Atlas

Abstract: In the contemporary epic novel Cloud Atlas (2004), David Mitchell creates fictive worlds spanning hundreds of years to reveal the consequences of industrial capitalism on a global scale. The dystopic near-future section of the novel, where most of the earth's natural resources have been obliterated due to mass nuclear explosions, explores a consumer class society fueled by late-stage capitalism that fabricates nature to survive—even if that means recycling the human body. Sonmi-451, an Asian female clone, narrates the story of a nightmarish fantastical world where present-day factory farming practices manufacture human bodies instead of animals. In this paper, I draw parallels from Upton Sinclair's The Jungle (1906) and Tillie Olsen's Yonnondio: From the Thirties (1974) to trace how slaughter has been perceived in relation to dystopian imaginings of meat production.

Stepwise Reduction of Dietary Phosphorus in Diets for Piglets and Fattening Pigs of Different Genetic Origin Housed under Various Station Environments-A Ringtest.

The reduction of emissions of nutrients from livestock is one of the main topics in areas with intensive animal husbandry. In order to minimize the loss of nutrients into the environment, it is common practice to feed animals as close as possible to metabolic demands. For phosphorus (P), there are various studies for swine and poultry, which showed that a reduction of dietary P levels is possible, if a sufficient level of phytase is added to the diet. The supplementation of a sufficient dosage of phytase to plant-based diets leads to an increase in digestible phosphorus (dP) upon the hydrolisation of phytate (InsP6) to P and lower inositol-phosphates. However, most of these studies were conducted under standardized experimental conditions. In terms of transfer to practical conditions with varying housing, management and genetics, there are concerns that have led to speculation by farmers and veterinarians whether the reduction of dietary P could negatively affect bone health and therefore animal welfare. In order to test whether a reduction of dietary P according to the recommendations for dP of the German Society of Nutrition Physiology (GfE) affects bone mineralization and growth performance, a ringtest was conducted where piglets and fattening pigs were fed at four experimental stations with three centrally produced diets from the same batches. The diets contained three different levels of P and were designed to reflect practical diets. The P level decreased from diet one to three, respectively. Diets one and two were calculated to contain P levels, which are typically fed under practical conditions in Germany. The third diet was optimized to fulfill the requirements of dP by the GfE. The animals were fed in two phases as post-weaning piglets (8-15 kg and 15-28 kg BW) followed by a three-phase fattening regime (28-60 kg, 60-90 kg and 90-120 kg BW). Individual body weight and feed consumption (pen basis or individually, depending on the experimental station) were recorded for every feeding phase. At the end of the experiment, animals were slaughtered. At one experimental station, additional blood serum, metatarsi of the left leg and kidney tissue were sampled to analyze serum P concentration, expression of P transporters in the kidney and bone traits. In two experimental stations, femur and vertebra were sampled, and bone ash was determined. Overall, animal performance and all other traits analyzed did not differ between the treatment with the highest and the treatment with the lowest dietary P concentration. The results demonstrate that it is possible to decrease dietary P according to the recommendations for dP of the GfE, without impairing the animals' performance or mineral homeostasis and health. A reduction of total P by reducing mineral P to the levels of the present study require the supplementation of phytase to achieve sufficient concentrations of dP.

An Islamic framework for animal ethics: Widening the conversation to include Islamic ethical vegetarianism

This article explores normative ways of conceptualizing Islamic ethics, animal ethics, and the divergent positions on the ethical treatment of animals by Muslims within Islamic scholarly discourse. Too often, the literature addressing the intersection between Islamic ethics and animal ethics is narrowly focused on the topic of halal slaughter. Therefore, this article proposes a wider conversation about an alternative relationship between Muslims and nonhuman animals in the industrialized factory farming era, suggesting that an ethical-vegetarian lifestyle may more accurately uphold the Islamic principles of compassion and mercy, as well as the Islamic practice of intellectual effort, ijtihad. At the very least, a reconceptualization to that end deserves rigorous consideration within Islamic scholarship, taking the debate beyond simply the moment and manner of an animal’s death.

20 Years of Environmental Injustice and the Mississippi Hog Industry: Spatial and Statistical Analyses for Low-Wealth Communities and Communities of Color

Background: The industrialization and consolidation of the animal agriculture industry has led to the rise of concentrated animal feeding operations (CAFOs). CAFOs and their runoff have been linked to deleterious effects on environmental and human health. A previous study demonstrated that hog CAFOs were disproportionately sited within or near low-wealth communities and communities of color, raising environmental justice concerns. This study aimed at replicated prior methods to assess whether environmental injustices that were identified nearly 20 years ago have been adequately addressed through policy and/or other mechanisms. Methods: CAFO data, including facility size and manure generation, were taken from the Mississippi Department of Environmental Quality. Buffer analysis was conducted using CAFO data and block-group sociodemographic data from the 2018 5-year American Community Survey to measure CAFO proximity to communities of concern (low-wealth, communities of color). Statistical analyses (quintile analysis, prevalence ratios, negative binomial regression, spearman correlation assessments) were utilized to measure the correlation between CAFO presence and sociodemographics. Results: The CAFOs in Mississippi were located in block groups that have an average or greater African American population compared with the state. The highest number of hog CAFOs were within block groups with 15.9%–36.9% of people below the poverty line. Conclusion: Race and socioeconomic status could be factors in determining the likelihood of living near a hog CAFO in Mississippi, yet these analyses did not demonstrate a positive correlation between race, socioeconomic status, and the presence of CAFOs. Considering the potential harm that hog CAFOs pose to low-wealth populations and communities of color, policy recommendations include a moratorium on expansion; phasing out the largest CAFOs in the state; and stricter enforcement of environmental protections with regards to animal agriculture.