Livestock Facilities Research Articles

Evil and allies: Opportunistic gulls as both spreaders and sentinels of antibiotic‐resistant bacteria in human‐transformed landscapes

Abstract Human‐transformed residuals, especially those derived from human waste (dumps), farmland, and livestock are involved in the emergence of antibiotic‐resistant bacteria (ARB) in the environment. Wildlife can act as vectors of ARB dispersal through different environments, but also as sentinels to detect the early spread and determine ARB sources. The development of integrated monitoring programmes focused on wildlife would help to anticipate the risks of ARB to humans and livestock. We used the yellow‐legged gull (Larus michahellis) as a model species to investigate and monitor the spatial patterns of ARB dispersal across an extensive farmland region located in northeastern Spain (Lleida). By integrating GPS tracking data and ARB clinical testing for 26 individuals within a network analysis framework, we modelled the risk of spatial pathogen spread through faeces during the bacteria‐transmission latency period (16 days after sample collection). Additionally, we created a connectivity network to determine the main sources of ARB in the area, focusing on three main habitats of special risk for infection: dumps, livestock facilities, and irrigation ponds. Seven individuals were infected by Escherichia coli, with one also co‐infected with Listeria monocytogenes and Salmonella spp. Potential pathogen dispersal distances ranged from 1.13 km to 23.13 km from the breeding colony. Our network analyses revealed 54 main nodes (i.e. high‐risk habitats recurrently visited by tracked gulls) and 1182 links among them. Our findings revealed a high degree of connectivity between the breeding area, located in a shallow lake, and nearby dumps, highlighting them as significant contributors to ARB dispersal. Synthesis and applications: The integration of GPS data, pathogen testing and network analyses can shed further light on pathogen dynamics by creating spatial risk maps and identifying ARB sources. In combination with complementary molecular epidemiology techniques within a One Health framework, our approach can emerge as an important tool for monitoring ARB dynamics within highly human‐transformed ecosystems. This may empower managers for the development of targeted ARB monitoring programmes and effective mitigation strategies, ultimately improving both animal and public health.

Assessment of the Safety of Anti-Salmonella Disinfectant for Veterinary Use Based on a Cocktail of Bacteriophages.

The toxicity and safety of a veterinary anti-salmonella disinfectant based on three highly virulent bacteriophage strains (titers 1010 PFU/ml) were studied. Acute, chronic, and inhalation toxicity, as well as local irritancy of the disinfectant were evaluated on outbred white mice CD1 (n=65), Soviet chinchilla rabbits (n=20), and rats (n=20). No toxic effects of the disinfectant was observed after its intraperitoneal or intragastric administration to mice and intragastric administration to rats; in rabbits, application on the skin and eyes produced no local irritation effect. Inhalation of 10% of the disinfectant did not cause any pathologies in mice. Thus, the tests confirmed the high level of safety of the disinfectant based on a mixture of bacteriophages for use as an additional specific disinfection agent against Salmonella in veterinary and livestock facilities.

Investigation on Designated Odor Substances Emitted in Livestock Facility

Investigation on Designated Odor Substances Emitted in Livestock Facility

Influence of Fix Schedule on the Location Accuracy of a Low-Cost GPS Data Logger on Cattle

ABSTRACT Global positioning system (GPS) data loggers are commonly used to track the movements and distribution of both wild and domestic animals. However, the expense often poses a challenge for researchers. Recently, there has been a rise in the utilization of affordable and user-friendly GPS data loggers for tracking animal movements, albeit with compromised accuracy. We aimed to identify factors influencing the accuracy of a low-cost GPS data logger (I-gotU GT-600) and to enhance its location accuracy. Initial investigations revealed that recording intervals impacted the location error of the GPS data logger. To elucidate the relationship between recording intervals and location accuracy, we conducted stationary and motion tests. Our findings indicated that recording intervals of less than 15 sec substantially enhances the location accuracy of the low-cost GPS data logger. Our results highlight the relationship between the fix schedule and location accuracy for these GPS data loggers. Our study provides information that enhances the quality of data for researchers using low-cost GPS data loggers for short-term studies in various settings, such as zoos and livestock facilities.

Environmental conditions in equine indoor arenas: A descriptive study

Indoor arenas do not always include mechanical ventilation or stirring fans and occupancy by horses and humans can be sporadic and inconsistent, which creates a challenging space for understanding and predicting variations in temperature, moisture, and airflow. To understand the interior environment within indoor arenas, monitoring was conducted at 15 facilities within 200 kilometres of Lexington, KY. Environmental monitoring of dry bulb temperature, relative humidity, dew point temperature, air speeds, and solar radiation took place over 7 days in the winter and summer to examine temporal variability. Environmental data was collected every 5 minutes using the HOBO RX3000 Remote Monitoring Station with the HOBOnet Temp/RH Sensor, HOBOnet Solar Radiation (Silicon Pyranometer) Sensor, and HOBOnet Ultrasonic Wind Speed and Direction Sensor. Clear seasonal differences and diurnal patterns were evident in all environmental conditions, but the relative humidity. The relative humidity and dew point temperatures indicated moisture could be an issue in many of the indoor arenas. High relative humidity and excess moisture can negatively impact horse and human health as well as the lifespan of the facility. Similar results to previous spatial variability indoor arena characterizations were observed during the environmental monitoring with air speeds being below the threshold for still air in livestock facilities (0.51 m s-1). Sensor technology and implementation provides a better understanding of the interior environment and how indoor arena design can impact it.

Evaluation of Thermal Performance through the Change of Exhaust Airflow Rate for Cooling Effect of an Unglazed Transpired Collector in Livestock Facility

Evaluation of Thermal Performance through the Change of Exhaust Airflow Rate for Cooling Effect of an Unglazed Transpired Collector in Livestock Facility

Prevalence, Antimicrobial Resistance, and Characterization of Listeria Spp. Isolated from Various Sources in Ethiopia: A Comprehensive Review.

Listeriosis is an important foodborne zoonotic disease affecting humans and animals in Ethiopia. This review aims to synthesize the epidemiology, prevalence, distribution, and antimicrobial resistance of Listeria species in the country. The literature reveals a widespread occurrence of Listeria infection in humans, animals, and food products, with an average prevalence of 21.6% for Listeria species and 6.9% for L. monocytogenes. Three sequence types (STs) of L. monocytogenes (2, 145, and 18) and twelve STs of L. innocua (1489, 1619, 603, 537, 1010, 3186, 492, 3007, 1087, 474, 1008, and 637) were reported from milk and dairy products. Contamination rates ranged from 4.1% to 42.9% across livestock, dairy, slaughterhouses, and processing facilities, indicating faults in production practices. Sporadic human listeriosis outbreaks have occurred since 1967, causing meningitis, perinatal infections, and deaths, with recent studies showing L. monocytogenes isolation in up to 10.4% of febrile patients, confirming foodborne transmission. Non-pathogenic Listeria species were also common on farms and in facilities. Ovine listeriosis poses a threat to Ethiopia's sheep and goat industries, with over 40% seroprevalence in some herds. Comprehensive control measures across the food chain are needed to curb contamination and protect public health. Isolates from various foods show antibiotic resistance to first-line agents but susceptibility to others like gentamicin and cephalosporins. In conclusion, this review synthesizes evidence on Listeria distribution in Ethiopia's food system and disease burden, highlighting the need for improved food safety policies and awareness.

Structural and ammonia adsorption properties of the Gördes clinoptilolite after HCl acid treatment

In this study, the effect of activation with HCl on the ammonia adsorption properties of natural Gördes clinoptilolite was investigated in order to evaluate the usability of this mineral in various environments where ammonia removal is required, such as livestock facilities. Clinoptilolite was treated with HCl solutions of different concentrations (0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 M) at 90°C for 4 h. The adsorbents were characterized using XRD, XRF, FT-IR, TGA, DTA and N2 adsorption techniques. NH3 adsorption isotherms were measured volumetric analysis at 298 K up to 100 kPa. Acid activation not only caused textural and structural changes such as removal of exchangeable cations and partial destruction of the structure, but also affected the thermal behaviour and gas retention of the clinoptilolite. Nitrogen adsorption results showed that it is possible to improve the specific surface area and micropore properties of clinoptilolite with acid activation up to 1.5 M. In addition, the NH3 adsorption capacities of clinoptilolite samples (4.33-5.01 mmol.g-1) in this study were compared with the ammonia removal data of natural and synthetic zeolites (1.77 - 9.32 mmol.g-1) reported in previous studies.

Reproductive qualities of French breed large white breed sows of different operating value and level of their discretion

This work aimed to investigate the lifespan and breeding use, reproductive qualities, and the level of their discreteness in sows of the large white breed of French breeding, considering their operational value. Agroprime Holding LLC of the Odesa region, the laboratory of innovative technologies, and experimental livestock facilities of the Institute of Pig Breeding and AIP of the National Academy of Sciences carried out the practical part of the work. Evaluation of sows according to indicators characterizing the level of their adaptation and reproductive qualities was carried out taking into account the following characteristics: life expectancy, days; duration of tribal use, days; received farts; all live piglets were born, head.; multifertility, ch.; high fertility, kg.; nest weight at the time of weaning at 28 days, kg; preservation, %. The selection index of reproductive qualities of the sow (SIRQS) was calculated according to the method of O. M. Tsereniuk et al. (2010), the coefficient of discreteness (D) – Seromolot and Sviatchenko (1984). Biometric processing of research results was carried out according to generally accepted methods. It has been established that sows of the large white breed of French breeding, provided they are kept in production premises using innovative technologies, are characterized by high indicators of the level of adaptation and reproductive qualities. Thus, their life span is 905.7 days, the duration of breeding use is 680.6 days, and in terms of reproductive qualities, they belong to the elite class. A significant difference between the groups of experimental animals was established in terms of life expectancy, duration of breeding use, total number of live piglets, multifertility, and litter weight at the time of weaning at the age of 28 days. The maximum indicators of high fertility (1.34 kg) and preservation of piglets until weaning at the age of 28 days (100 %) were found in sows of the “low operational value” category. The coefficient of discreteness of life expectancy and breeding use in sows of I, II, and III experimental groups is equal to 0.406, 0.677, and 0.633, reproductive qualities – 0.828, 0.882, and 0.903, respectively. Coefficients of paired correlation between life span and breeding use of sows and signs of reproductive qualities range from -0.055 to +0.904. The maximum increase in additional production was obtained from sows of the “high operational value” category – +6.80 %, and its value is +355.57 UAH/head/ farrowing.

The current state of development and veterinary support of pheasant farming in Ukraine

This work aimed to investigate the lifespan and breeding use, reproductive qualities, and the level of their discreteness in sows of the large white breed of French breeding, considering their operational value. Agroprime Holding LLC of the Odesa region, the laboratory of innovative technologies, and experimental livestock facilities of the Institute of Pig Breeding and AIP of the National Academy of Sciences carried out the practical part of the work. Evaluation of sows according to indicators characterizing the level of their adaptation and reproductive qualities was carried out taking into account the following characteristics: life expectancy, days; duration of tribal use, days; received farts; all live piglets were born, head.; multifertility, ch.; high fertility, kg.; nest weight at the time of weaning at 28 days, kg; preservation, %. The selection index of reproductive qualities of the sow (SIRQS) was calculated according to the method of O. M. Tsereniuk et al. (2010), the coefficient of discreteness (D) – Seromolot and Sviatchenko (1984). Biometric processing of research results was carried out according to generally accepted methods. It has been established that sows of the large white breed of French breeding, provided they are kept in production premises using innovative technologies, are characterized by high indicators of the level of adaptation and reproductive qualities. Thus, their life span is 905.7 days, the duration of breeding use is 680.6 days, and in terms of reproductive qualities, they belong to the elite class. A significant difference between the groups of experimental animals was established in terms of life expectancy, duration of breeding use, total number of live piglets, multifertility, and litter weight at the time of weaning at the age of 28 days. The maximum indicators of high fertility (1.34 kg) and preservation of piglets until weaning at the age of 28 days (100 %) were found in sows of the “low operational value” category. The coefficient of discreteness of life expectancy and breeding use in sows of I, II, and III experimental groups is equal to 0.406, 0.677, and 0.633, reproductive qualities – 0.828, 0.882, and 0.903, respectively. Coefficients of paired correlation between life span and breeding use of sows and signs of reproductive qualities range from -0.055 to +0.904. The maximum increase in additional production was obtained from sows of the “high operational value” category – +6.80 %, and its value is +355.57 UAH/head/ farrowing.

Technology for reducing gas emissions from livestock farms

The study provides an overview of methods for neutralizing pollutants from emissions from livestock facilities. The principal possibility of gas purification with the use of sorbents based on natural materials is presented. Pilot tests were conducted on the territory of an operating livestock farm in the Republic of Kalmykia. During the experiment, the type of sorption loading of the biofilter varied, which made it possible to assess the basic requirements, engineering fundamentals, principles of operation, applicability, economic efficiency and potential failures of the proposed method.

An Outbreak of the Monkeypox Virus: An Alert to Mankind

A zoonotic condition known as monkeypox (MPX) is brought on by the monkeypox virus (MPXV), a species of the orthopoxvirus family. It was found in 1958 following an epidemic at a Copenhagen, Denmark, livestock facility. MPX has a clinical appearance that is comparable to smallpox (SPX). Laterit’sfinding, MPXV has shown a tendency to infect and cause disease in a significant number of mammalian animals from all over the world. Traveller’s MPX was exported from African countries (Nigeria) to other regions of the world in 2018 and 2019, respectively, raising concerns that MPXV may have emerged to occupy the ecological and immunological niche left by the smallpox virus (SPXV). MPXV first appeared again in 2017 in Bayelsa state after 39 years with no reported cases in Nigeria. This review's goal is to locate all documented cases of human MPXepidemics and pertinent epidemiological data. We made an effort to gather and discuss in this review all articles that have been written about MPXV infections that have been found experimentally or naturally. We also go through the comparative illness courses and the state of our understanding of the biology of infection, epidemiology, diagnosis, spread, and prevention of MPXV globally, particularly concerning humans. The MPXV is regarded as a high-danger pathogen that roots a disease that is significant for public health. To plan effective preventative, preparedness, and response actions, it is vital to concentrate on developing surveillance capacities that will yield meaningful information.

Impact of farming structure on intensity of wild birds accidents

Abstract. The living environment of progressively increasing population worldwide is significantly encroaching on and occupying areas of wild nature. At the marginal zones where human activity and environment meet, biodiversity is subjected to the effects of agriculture and its modern intensification. The grasslands within human settlements serve as intersections where farm animals and wildlife meet and interact, sometimes directly competing for resources. One aspect of this interaction involves active management of encounters between wild and domestic animals in order to control animal health at both individual and herd levels, aiming to minimize economic losses and maximize productivity and sustainability of livestock production. On the other hand, wild animals are also directly and indirectly influenced by the type of animal husbandry practices developed in each region, often with adverse consequences for wildlife. Human-wildlife conflict is among the most urgent and well-researched issues for the creation and implementation of effective wildlife conservation measures worldwide. However, systematic knowledge of these conflicts remains insufficient. In order to explore the spatial overlap between livestock and wildlife leading to conflicts between them, this study aims to assess the incidence of wildlife poisoning cases and their relation to changes in the type of livestock farming by economic planning regions in the country. For this study, we analyzed variations in the number of farm animals raised in specific regions from 2000 to 2019, and the trends in structural changes of registered livestock facilities in Bulgaria. We examined the influence of the structure of livestock holdings and the intensification of animal husbandry on the rate of patient admissions to the “Green Balkans” Wildlife Rehabilitation and Breeding Centre in Stara Zagora.

Air treatment technologies in pig farms. Life cycle assessment of dry and wet scrubbers in Northern Italy and Northeastern Spain

Over the years, different solutions were developed and tested to reduce the emissions of ammonia and particulate matter from the livestock facilities. The environmental performances of these solutions were not always evaluated in detail.This study examines the environmental footprint of pig production at farm gate, with a focus on emissions from housing. Using Life Cycle Assessment, the environmental impact of pig production in a transition farm in Spain and in two finishing farms in Italy was evaluated considering three scenarios (one baseline and two of them involving an air treatment technology: wet scrubber or dry scrubber).The study goal was to quantify the environmental footprint of pig production in different scenarios, identify key environmental hotspots, and to assess impact reduction efficiency due to the two assessed technologies, analyze the environmental trade-offs that come with the use of these technologies, and identify potential for improvements.Both wet and dry scrubbers showed potential for reducing emissions in pig housing, affecting environmental impact categories related to air pollutants such as particulate matter, acidification and eutrophication. However, there were trade-offs between emissions reduction and categories related to energy and resource use. The infrastructure and consumables required to operate the scrubber added to the impacts compared to the baseline.The dry scrubber showed a more favorable balance between emission reduction and trade-offs. In this regard, results were similar for the Spanish and Italian farms, although there were slight variations. Scrubbers had a greater effect in the Italian farms due to their use along longer periods of the pig fattening (closed cycle farms) compared to the Spanish farm (transition farm).Scrubbers are environmentally promising, especially where acidification, eutrophication and particulate matter are local problems. However, they alone cannot fully address the complex environmental impacts of pig production, which require comprehensive interventions across the supply chain.

Reproductive qualities of sows of the large white breed of French breeding and their evaluation according to some breeding indices

The article presents the results of a study on the evaluation of sows by reproductive qualities using the selection index of reproductive qualities of the sow (SIRQS) and the index of Shatalina Yu. D. The experimental part of the work was carried out at Agroprime Holding LLC of the Odesa region and the laboratory of innovative technologies and experimental livestock facilities Institute of Pig Breeding and AIP of the National Academy of Sciences. Evaluation of sows for reproductive qualities was carried out considering the following signs: multifertility, head.; high fertility, kg.; nest weight at the time of weaning at 28 days, kg; preservation, %. A comprehensive assessment of sows for reproductive qualities was carried out using the selection index of reproductive qualities of the sow (SIRQS)and the Shatalina index. Biometric processing of research results was carried out according to generally accepted methods. The intrabreed differentiation of sows according to the selection index of the reproductive qualities of the sow (SIRQS) and the Shatalina index shows that a significant difference between the animals of the I and III experimental groups was found in terms of multifertility (4.3 and 4.4 head) and litter weight at the time of weaning at the age of 28 days (33.0 and 34.1 kg). There was no significant difference between the groups of experimental animals in terms of high fertility and survival of piglets until weaning at the age of 28 days. High coefficients of phenotypic consolidation in sows of the 1st and 2nd experimental groups were established by multifertility and litter weight at the time of weaning at 28 days. The number of reliable pairwise correlation coefficients between the absolute indicators of reproductive qualities of sows, the Shatalina index, and SIRQS is 75.0 %. The maximum increase in additional production was obtained from sows of the 1st experimental group of interbreed differentiation according to the index of Shatalina (+13.68 %) and SIRQS (+13.85 %), and its value is +697.34 and +706.01 UAH/head./farrowing, respectively.

Genomic characterization of a WHO critical priority isolate Enterobacter kobei ST2070 harboring OXA-10, KPC-2, and CTX-M-12 recovered from a water irrigation channel in Ecuador

The discharge of untreated or partially treated wastewater can have detrimental impacts on the quality of water bodies, posing a significant threat to public health and the environment. In Ecuador, previous research indicates a high prevalence of antimicrobial resistant (AMR) bacteria in surface waters affected by human activities, including irrigation channels. In this study, we analyzed sediment samples collected from an irrigation channel utilized for agricultural purposes in northern Ecuador, using microbiological techniques and whole-genome sequencing (WGS). Our investigation revealed the first documented occurrence of E. kobei in Ecuador and the initial report of environmental E. kobei ST2070. Furthermore, we identified the coexistence of OXA-10-type class D β-lactamase and KPC-2-type class A β-lactamase in the E. kobei isolate (UTA41), representing the first report of such a phenomenon in this species. Additionally, we detected various antibiotic resistance genes in the E. kobei UTA41 isolate, including blaCTX-M-12, fosA, aac(6′)-lb, sul2, msr(E), and mph(A), as well as virulence genes such as bacterial efflux pump and siderophore biosynthesis genes. We also identified two intact prophage regions (Entero_186 and Klebsi_phiKO2) in the isolate. Our study presents the first evidence of E. kobei isolate containing two carbapenemase-encoding genes in environmental samples from Latin America. This finding indicates the potential spread of critical-priority bacteria in water samples originating from anthropogenic sources, such as urban wastewater discharges and livestock facilities.

Difference of Microbial Community in the Stream Adjacent to the Mixed Antibiotic Effluent Source.

Released antibiotics from source to stream can influence bacterial communities and potentially alter the ecosystem. This research provides a comprehensive examination of the sources, distribution, and bacterial community dynamics associated with varied antibiotic release sources adjacent to the stream. The residual of antibiotics from different sources was determined, and the bacterial community structure was examined to reveal the differences in the bacteria community in the stream. The residual of antibiotics was quantified with liquid chromatography-tandem mass spectrometry (LC-MS/MS), and the Illumina MiSeq platform was utilized to sequence bacterial 16S rRNA genes, providing comprehensive insights into the bacterial community structure in the sediment across five different sites. Results indicated that the presence and distribution of antibiotics were significantly influenced by released sources. In the case of the bacterial community, the Proteobacteria and Firmicutes were the most dominant phyla in the sediment, and especially, the Firmicutes showed higher abundance in sites mostly affected by livestock sources. Additionally, livestock gut bacteria such as Clostridium saudiense, Proteiniclasticum ruminis, and Turicibacter sanguinis were prevalent in antibiotic-contaminated sites adjacent to livestock facilities. Overall, this study provides critical insights into the effect of antibiotic contamination by verifying the relationship between the occurrence of antibiotic residuals and the alteration in the bacterial community in the stream.

Investigating the Possibility of Using Renewable Energies in Livestock Units in Iran (A Case Study: Fereydounshahr)

Fereydounshahr experiences growing electricity shortfalls and an overreliance on polluting diesel generators. This analysis models renewable hybrid systems to electrify a local dairy operation using HOMER Pro 3.11 software. Despite higher upfront costs, adding just 5% solar photovoltaics maintained low net present costs while increasing clean energy penetration versus diesel generators alone. Furthermore, a combined diesel-solar-wind system reduced carbon dioxide and nitrogen oxide emissions by over 1%. Although diesel generators had the shortest payback period at 48 years, the capital recovery factor for a diesel–solar combination reached 62 years. Thus, tailored hybrid renewable systems could provide an affordable, low-emissions electricity solution for the Fereydounshahr livestock facility. With suitable wind and solar resources, the right policy incentives could also unlock substantial local renewable capacity to meet rising demand and mitigate dependence on imported, climate-harming fossil fuels.

A MATLAB simulation-based analytical study of energy, exergy, and cost benefits in jet-impinged protrusion-roughened double pass solar air collector.

This study analyzes the performance and cost-effectiveness of a protrusion-roughened jet-impinged double-pass solar air collector (PRJDPSAC) within a Reynolds number (Re) range of 2500 to 22,500. Examining jet slot parameters, i.e., the jet height ratio (Hjp/Dhd = 0.11-0.44), stream-wise pitch ratio (Xjp/Dhd = 0.44-1.32), and span-wise pitch ratio (Yjp/Dhd = 0.44-1.32), the model demonstrates enhanced energy conversion, minimizes losses, improves efficiency, and brings positive economic impact, making it a promising solution for diverse applications including drying processes, livestock facilities, remote accommodations, and HVAC system pre-heating. The examination incorporates advanced MATLAB simulations to assess energy-exergy performance and cost viability. At lower Re values, both energy ([Formula: see text]) and exergy ([Formula: see text]) efficiencies increase uniformly; however, stabilization and decline occur at higher Re values. The maximum [Formula: see text] for the PRJDPSAC is 4.38% under a temperature rise parameter of 60 × 10-3 Km2/W for obtaining optimum values of Xjp/Dhd = 1.32, Hjp/Dhd = 0.22, and Yjp/Dhd = 1.32, which is 31% higher than that of the smooth double-pass solar air collector (DPSAC). Economic benefits are significant for PRJDPSAC within mair (0.01-0.07kg/s), but above 0.07kg/s, the DPSAC becomes more cost-effective. Integrating simulation and experimental data, the study highlights MATLAB's effectiveness for solar energy system analysis and optimization, reinforcing the practicality of the proposed collector design.

Ammonia emissions from livestock facilities around an international airport, Tehran, Iran: An experimental and mathematical study

AbstractAmmonia emissions from livestock farms are a major problem for staff and residents near these centers. Anaerobic decomposition of livestock waste and the collection and stacking of waste are the main sources of ammonia gas on livestock farms. This article examined ammonia emissions from livestock facilities near Tehran Imam Khomeini International Airport. First, field measurements were made in the summer (30°C), and collected samples were examined using the indophenol technique. AERMOD, based on Gaussian fluctuating plume theory, was constructed to model ammonia emissions. According to AERMOD, the maximum periodic‐seasonal 2‐hourly and 8‐hourly ammonia concentrations were 15.9, 229, and 63.7 OU (odor unit per unit volume)/m3, respectively. The hourly ammonia emission rate from livestock sources is also 0.0168 gm−2 h−1. AERMOD results mathematical model indicated reasonable agreement with the field measurement, which the coefficient of determination (R2), index of agreement (d), and efficiency coefficient (E) were 0.95, 0.97, and 0.91, respectively. Moreover, Statistical indices, including geometric mean bias (MG), geometric variance (VG), fraction of predictions within a factor of two of observations (FAC2), and normalized mean square error (NMSE), the root mean square error (RMSE) and mean absolute error (MAE) are also indicated by 1.36 and 0.67, respectively, were used to assess the reliability of the model results showed that AERMOD had a good agreement with the field measurement.