Layer Farm Management: A Guide to Housing, Feeding, and Record Keeping

Layer farm management requires coordinated decisions across housing systems, nutrition programs, lighting schedules, biosecurity protocols, and production records. This guide covers the core management areas that determine flock performance and hen welfare, with emphasis on practical record keeping for production tracking. The content applies to commercial layer operations and small-scale farms alike, with management choices adapted to available resources and market requirements.

At a Glance

Housing Systems and Facility Design

Housing choices shape every other management decision on a layer farm. The main commercial options are conventional cages, furnished cages, barn systems, aviary systems, and free range systems. Each system changes labor requirements, bird health risks, and the management practices needed for success.

Cage Systems

Conventional cage systems house birds in small groups with wire flooring and automated egg collection. Furnished cages provide nesting areas, perches, and scratching areas within a larger colony cage. Cage systems allow precise control of feeding, watering, and egg collection, and they simplify disease control because birds have limited contact with litter and wild birds.

Management attention in cage systems focuses on stocking density, ventilation, and inspection frequency. Birds in cages cannot move away from heat sources or aggressive flock mates, so environmental control becomes critical. Daily inspection must include checking for birds trapped in cage components, evaluating foot condition, and monitoring feather loss.

Barn and Aviary Systems

Barn systems house birds on the floor with litter, while aviary systems add multiple tiers of perches, feeders, and nest boxes. These non-cage systems allow natural behaviors such as dust bathing, perching, and nesting. A survey of Canadian layer farms found that most flocks were reared in the same housing system used during lay, except for furnished cage layers which were typically reared in conventional cages [11]. This finding supports the practice of rearing pullets in the system where they will lay.

Non-cage systems require more intensive litter management than cage systems. Litter moisture, ammonia levels, and capping must be monitored regularly. The Canadian survey noted that a large proportion of non-cage systems were either fully slatted or had manure as a litter substrate, which raised concerns about consumer perceptions and bird welfare [11]. Dry litter reduces foot lesions, breast blisters, and respiratory problems.

Free Range Systems

Free range systems provide outdoor access during daylight hours. An Australian study of commercial layer farms found that over half of free range layer farms granted range access at a set time each morning, most commonly between 9:00 and 10:00 am, and birds were placed back inside sheds at dusk [6]. Range access timing affects egg distribution, predator risk, and biosecurity exposure.

Free range farms face additional management challenges including parasite control, predation, and environmental contamination. The same Australian study reported that sheds with cooling pads and tunnel ventilation were least common in free range layer farms compared to barn and meat chicken farms [6]. Producers considering free range systems should budget for range rotation, shelter provision, and predator exclusion fencing.

Ventilation and Thermal Environment

Ventilation removes moisture, ammonia, and heat while supplying fresh air. A study of a multi-tier layer house with all-year sidewall inlet ventilation found that indoor temperatures ranged from 18.3 to 29.8 degrees Celsius while outdoor temperatures fluctuated from minus 22.0 to 37.3 degrees Celsius [21]. The system maintained diurnal temperature fluctuations within 3 degrees Celsius for 77.4 percent of the monitoring period [21]. This research demonstrates that well-designed ventilation systems can stabilize the thermal environment even in climates with extreme outdoor variation.

The same study found that microclimates within colony rows were 1.5 degrees Celsius warmer and 9 percent lower in relative humidity than interstitial spaces between rows [21]. Temperature sensors placed only in aisles may miss heat stress conditions inside the bird zone. Producers should position temperature probes at bird level and monitor multiple locations within the house.

Heat stress is a major constraint to egg production worldwide. A review of heat stress in layer chickens described it as a multi-systemic disruption involving neuroendocrine overload, metabolic imbalance, oxidative damage, immune suppression, and gastrointestinal barrier breakdown [18]. These pathways collectively impair egg production, shell quality, feed efficiency, and hen welfare [18]. Mitigation strategies include targeted cooling, antioxidant and electrolyte supplementation, selection of heat-tolerant strains, enriched environments, and sensor-based early-warning systems [18].

Nutrition Programs for Laying Hens

Feed represents the largest variable cost in layer production. Nutrition programs must match the bird's requirements at each stage of the production cycle, from pullet rearing through peak production and late lay.

Pullet Rearing Nutrition

Pullet nutrition determines frame development, body weight at photostimulation, and subsequent laying performance. The goal is to achieve target body weight and uniformity at 16 to 18 weeks of age. Underweight pullets lay smaller eggs and fail to reach peak production. Overweight pullets may experience prolapse and fatty liver problems.

Feed formulation for pullets should provide adequate calcium for skeletal development but not so much that it interferes with calcium metabolism later. Grower diets typically contain lower protein and energy than starter diets, with calcium levels adjusted to support bone mineralization without overloading the system.

Pre-Lay and Peak Production Nutrition

The pre-lay period, approximately two weeks before the first egg, requires a transition to layer diet calcium levels. This prepares the hen for the high calcium demand of shell formation. Hens that receive layer diet too early may consume excess calcium, while those that receive it too late may produce thin-shelled eggs at the start of lay.

Peak production places the highest nutritional demand on the hen. A study of four laying hen strains in aviary housing found that all strains achieved at least 91 percent hen day egg production, with one white strain having 8 percentage points higher production than others throughout most of lay [20]. Feed intake must support this output, and nutrient density must be adjusted for ambient temperature. Hens eat less in hot weather, so diets must be more concentrated to maintain nutrient intake.

Late Lay Nutrition

As hens age beyond 40 to 45 weeks, egg production declines and shell quality becomes more difficult to maintain. Calcium and phosphorus levels may need adjustment, and particle size of the calcium source affects shell quality. Large particle calcium is retained longer in the digestive tract and provides calcium during the night when shell formation occurs.

Egg composition varies by production type. A study of Slovenian chicken genotypes found that meat-type hens had the highest egg cholesterol concentrations and totals, layer-type purebreds were intermediate, and commercial crossbreds had the lowest [19]. The yolk-to-albumen ratio followed the same pattern, with crossbreds at approximately 0.44, layer purebreds at 0.46, and meat types at 0.50 [19]. Producers selecting breeds for specific egg markets should consider these genetic differences in egg composition.

Feed Management Practices

Feed management includes also formulation but also delivery, storage, and monitoring. Feed should be stored in clean, dry conditions to prevent mold growth and rodent contamination. Feeders must be adjusted to minimize wastage while ensuring all birds have access.

Daily feed intake records provide an early warning of health problems. A sudden drop in feed intake often precedes clinical signs of disease. Feed conversion ratio, calculated as feed consumed per dozen eggs or per kilogram of egg mass, is a key efficiency measure.

Lighting Programs

Lighting programs control the onset of lay and maintain production through the laying cycle. The hen's reproductive system responds to day length, and photostimulation triggers the hormonal cascade that leads to egg production.

Rearing Period Lighting

During rearing, pullets should never experience increasing day length. The standard approach is to hold day length constant or gradually decrease it during the rearing period. This prevents premature sexual maturity and ensures the pullet has adequate frame size before lay begins.

Light intensity during rearing affects activity levels and the development of feather pecking. Low light intensity reduces activity but may increase the risk of feather pecking if birds become bored. The rearing environment should provide adequate light for normal activity and feeding.

Photostimulation

Photostimulation occurs when day length is increased to trigger the onset of lay. The timing depends on body weight and age. Most commercial programs photostimulate between 16 and 20 weeks of age, when pullets have reached target body weight. The day length is typically increased to 13 to 14 hours and then extended gradually to a maximum of 16 to 17 hours.

The response to photostimulation depends on the pullet's body weight and fat reserves. Underweight pullets may not respond properly, resulting in delayed or erratic onset of lay. Overweight pullets may come into lay too early with excessive egg size and prolapse problems.

Layer Period Lighting

Once peak day length is reached, it should be maintained through the laying cycle. Decreasing day length during lay will cause production to decline. Light intensity should be sufficient for hens to find feed, water, and nest boxes, typically 10 to 30 lux at bird level in cage systems and higher in non-cage systems.

Light distribution is as important as light intensity. Dark corners in barn systems encourage floor eggs and may increase the risk of hens being trapped or injured. Regular light measurement at multiple locations helps identify areas needing additional fixtures or cleaning.

Biosecurity and Disease Prevention

Biosecurity is the foundation of disease prevention in layer flocks. Poor biosecurity increases disease risk and antimicrobial use. A review of antimicrobial use predictors in European livestock production identified biosecurity and herd health plans as key interventions to reduce antimicrobial use [10]. The same review noted that organic production typically showed lower antimicrobial use, but even antibiotic-free systems had varying antimicrobial resistance levels in livestock microflora [10].

Farm Access Controls

Visitor access should be restricted and logged. A study of biosecurity practices on Australian commercial layer and meat chicken farms examined farmer performance and perceptions of biosecurity measures [25]. Farms should provide clean boots and clothing for visitors, and vehicles should be restricted from production areas.

A study using Campylobacter hepaticus as a biosecurity indicator organism found widespread contamination across a layer complex with multiple flock ages [14]. Rodent stations were 75 and 93 percent positive in pullet and hen houses respectively, and floor samples in restrooms, locker rooms, and break rooms were 100 percent positive at pullet facilities [14]. This research demonstrates that biosecurity must extend beyond the bird houses to include employee areas and shared equipment.

Cleaning and Disinfection

Cleaning frequency is directly associated with disease risk. A study of poultry farms in Pakistan found that disease outbreaks were associated with low cleaning frequency, high stocking density, and specific bedding and feed ingredients [12]. The same study found that farmer education was associated with a decrease in disease outbreaks [12].

Cleaning protocols should include removal of litter and manure, washing with detergent, disinfection, and drying. The house should be empty for a period between flocks to break disease cycles. Water lines should be flushed and sanitized, and feeders should be cleaned to remove moldy feed.

Rodent and Insect Control

Rodents and insects transmit disease and contaminate feed. The Campylobacter hepaticus study found that all insects collected throughout the complex were positive for the organism [14]. Rodent control programs should include bait stations, trapping, and habitat management. Insect control may require professional pest management services, particularly for poultry red mite.

Poultry red mite is a widespread ectoparasite of laying hens causing major health, welfare, and economic losses [16]. A study of mite infestations in non-caged systems found that mites were first detected at sidewall locations adjacent to the outdoor range and spread throughout the house within 4 to 6 weeks [16]. After treatment, the house remained mite-negative for 3 months, but reinfestation occurred at the same sidewalls [16]. This pattern suggests that mite control must include treatment of housing structures, beyond birds.

Vaccination Programs

Vaccination programs should be developed with veterinary input based on local disease risks. The Canadian layer survey found that flock health was generally managed through daily inspections and vaccination schemes, while veterinarian involvement on-farm was less common [11]. The same study recommended that vaccination, hygiene, and effective biosecurity should be maintained to ensure good health in laying hens [11].

Vaccine handling and administration require attention to detail. Vaccines must be stored at the correct temperature, administered at the correct dose, and given at the appropriate age. Records of vaccine batch numbers and administration dates support traceability if problems occur.

Record Keeping for Production Tracking

Record keeping transforms daily observations into management information. Without records, producers cannot detect trends, evaluate interventions, or make informed decisions about culling, feeding, or flock replacement.

Daily Production Records

Daily records should include egg production, mortality, feed consumption, water consumption, and any treatments administered. Egg production is typically recorded as hen day production, calculated as eggs produced divided by hens alive on that day. Hen housed production, calculated as eggs produced divided by hens placed at the start of the flock, accounts for mortality and culling.

Egg weight should be measured regularly, typically weekly or biweekly. Egg weight increases with hen age, and the rate of increase provides information about nutritional status and flock uniformity. Shell quality should be assessed through observation of cracked, soft, or misshapen eggs.

Feed and Water Records

Feed consumption should be recorded daily or weekly. Feed intake per hen per day is calculated by dividing total feed consumed by the number of hens. Changes in feed intake often precede production changes and can signal health problems.

Water consumption is a sensitive indicator of flock health. Hens typically drink more than they eat, and water intake increases in hot weather. A sudden drop in water consumption may indicate a problem with the water supply or early disease. Water meters should be checked regularly and readings recorded.

Mortality and Culling Records

Mortality records should include the number of birds found dead and the number culled. Causes of death should be recorded when identifiable. A study of small-scale layer farms in Tanzania found that mortality rates were high when farmers lacked disease knowledge and cleaning frequency was low, and low when farmers had extensive experience in chicken production [9]. The same study found that the proportion of sick chickens in a flock was low when stocking density was low and in large households, but higher when the farmer lacked knowledge of disease management [9].

Culling decisions should be based on production records. Hens that stop laying, are chronically ill, or have poor shell quality should be removed from the flock. Culling reduces feed costs and disease pressure.

Production Performance Targets

Performance targets provide a benchmark for evaluating flock progress. Common targets include:

These ranges vary by breed, housing system, and management quality. Producers should compare their records to breed-specific standards provided by the hatchery or breeding company.

Record Keeping Systems

Record keeping systems range from paper notebooks to specialized software. A study of digital farming technology described the use of interactive maps and information and communication technology to improve decision-making and productivity in agriculture [24]. The study demonstrated the benefits of digital tools for data collection, analysis, and visualization [24].

The choice of record keeping system should match the farm's size and management capacity. Small farms may use a simple notebook or spreadsheet. Larger farms benefit from software that tracks multiple flocks, generates reports, and alerts managers to problems. Regardless of the system, records are only useful if they are accurate, complete, and reviewed regularly.

Common Failure Patterns in Layer Management

Understanding common failure patterns helps producers prevent problems before they occur. The following patterns appear repeatedly in layer farm management.

Inadequate Rearing Management

Pullets that are underweight, overweight, or poorly uniform at photostimulation will not perform well in lay. The Canadian survey found that most flocks were reared in the same housing system as they were housed in during lay, with the exception of furnished cage layers which were reared in conventional cage systems [11]. Rearing in a different system than the laying system may cause adaptation problems.

Prevention requires regular weighing of pullets, adjustment of feed allocation, and monitoring of uniformity. Pullets that fall behind target weight should be given additional feed or a higher nutrient density diet. Pullets that exceed target weight should have feed restricted or nutrient density reduced.

Poor Ventilation Management

Ventilation failures cause heat stress, ammonia buildup, and respiratory disease. The multi-tier housing study found that summer indoor temperatures exceeded 26 degrees Celsius on 112 days due to cooling activation at 28.0 degrees Celsius and reduced buffer space residence times [21]. This finding shows that ventilation systems must be actively managed, not simply installed and forgotten.

Prevention requires daily checks of ventilation equipment, regular cleaning of fans and inlets, and monitoring of temperature and ammonia levels. Backup systems should be tested regularly, and emergency procedures should be in place for power failures.

Inconsistent Lighting Programs

Lighting programs that are not followed consistently cause erratic production. Missed photostimulation, power failures, or inconsistent light intensity can disrupt the laying cycle. Producers should have backup lighting systems and procedures for maintaining day length during power outages.

Delayed Response to Production Drops

Production drops are often the first sign of disease, nutritional problems, or environmental stress. Producers who do not review records regularly may not notice a gradual decline until it becomes severe. Daily review of production records allows early intervention.

Inappropriate Antimicrobial Use

A study of small-scale layer farms in Bangladesh found that 94.16 percent of farmers used antibiotics without respecting the withdrawal period, and only 39.1 percent had knowledge of residues [7]. The same study found that 91.83 percent of farmers did not practice egg washing before supplying to market, and 52.67 percent were unaware of cleaning and disinfection of egg trays [7]. These practices create food safety risks and contribute to antimicrobial resistance.

The study also found that most antibiotics used were in the Watch and Reserve groups according to the WHO AWaRe categorization, and 73 percent were critically important for human medicine [7]. Producers should use antimicrobials only under veterinary guidance, respect withdrawal periods, and focus on prevention through biosecurity and good management.

Welfare Considerations in Layer Management

Hen welfare is influenced by housing, management, and genetics. Welfare problems reduce production and may affect market access as retailers and consumers demand higher welfare standards.

Feather Pecking and Cannibalism

Feather pecking is a serious welfare and production problem in non-cage systems. The Canadian survey found that feather coverage deteriorated as hens aged, with white strains having more frequent feather damage during assessments [20]. Brown strains had more incidence of keel damage based on manual palpation [20].

Prevention of feather pecking requires attention to lighting, nutrition, and environmental enrichment. Beak treatment may be used in some systems, but it does not address the underlying causes of feather pecking. Producers should monitor feather condition regularly and intervene early when damage is detected.

Skeletal Health

Skeletal health is a major welfare concern in laying hens, particularly in cage-free systems. The aviary housing study found that 90 percent of keel bones had fractures, frequently in the tip [20]. Brown strains had more keel damage based on manual palpation, but visual inspection revealed that one brown strain had fewer fractures than all other strains [20].

Prevention of skeletal problems requires adequate calcium and phosphorus nutrition, appropriate perch design, and management of falls and collisions. Rearing pullets with access to perches and elevated structures helps develop bone strength before lay begins.

Stress and Cognitive Function

Housing changes can affect hen cognition and stress resilience. A study that moved adult hens from enriched aviary pens to battery cages found that battery hens outperformed cage-free hens in memory tasks but showed a deficit in extinction learning [17]. The study also found that more fearful hens had lower working memory and were slower to find baited cups [17].

These findings suggest that housing changes are stressful for hens and that individual personality affects how hens respond to environmental change. Producers should minimize unnecessary housing changes and provide enrichment to support hen welfare.

Heat Stress Welfare

Heat stress is a welfare concern as well as a production problem. The heat stress review described the multi-systemic effects of heat stress on laying hens, including immune suppression and gastrointestinal barrier breakdown [18]. Producers should provide shade, ventilation, and cooling during hot weather and monitor hens for signs of heat stress.

Food Safety and Egg Handling

Egg handling practices affect food safety and market quality. The Bangladesh study found that most farmers did not practice egg washing before supplying to market and were unaware of cleaning and disinfection of egg trays [7]. These practices increase the risk of egg contamination.

Egg Collection and Storage

Eggs should be collected frequently, at least twice daily, to prevent soiling and breakage. Clean eggs should be stored in clean, dry conditions at appropriate temperature. Dirty eggs should be cleaned or discarded, as washing can remove the protective cuticle and increase contamination risk.

Withdrawal Periods

Withdrawal periods for medications must be respected to prevent drug residues in eggs. The Bangladesh study found that most farmers used antibiotics without respecting withdrawal periods [7]. Producers should maintain records of all treatments and follow veterinary guidance on withdrawal periods.

Antimicrobial Resistance

Antimicrobial resistance is a One Health challenge linking humans, animals, and the environment [10]. Livestock are a key target for moderation of antimicrobial use, which is a major driver of resistance [10]. Producers should use antimicrobials only when necessary, under veterinary guidance, and should focus on prevention through biosecurity, vaccination, and good management.

Professional Escalation Criteria

Producers should seek professional help when problems exceed their capacity to manage. The following situations warrant veterinary or technical consultation:

Disease Outbreaks

Sudden increases in mortality, severe production drops, or unusual clinical signs require immediate veterinary attention. A study of poultry farms in Pakistan found that diseases such as Avian Influenza, Newcastle Disease, and Fowl Typhoid were frequently reported and their outbreaks were associated with low cleaning frequency, high stocking density, and specific feed ingredients [12]. Early diagnosis and response are critical for disease control.

Persistent Production Problems

Production that fails to reach breed targets, or that declines more rapidly than expected, warrants investigation. A veterinarian or poultry specialist can help identify nutritional, environmental, or management causes.

Food Safety Concerns

Any suspicion of drug residues, contamination, or foodborne illness requires immediate attention. Producers should contact their veterinarian and follow regulatory reporting requirements.

Antimicrobial Resistance

If antimicrobial treatments are not effective, or if resistance is suspected, veterinary consultation is essential. The antimicrobial use review noted that social and behavioral factors are important influences on antimicrobial use [10]. Producers should work with their veterinarian to develop responsible use strategies.

Frequently Asked Questions

What is the ideal stocking density for layer hens?

Stocking density depends on the housing system. Cage systems allow higher densities than barn or free range systems. A study of Australian layer farms found that the median number of chickens per shed was 9,000 for cage layer farms, 9,300 for barn layer farms, and 10,713 for free range layer farms [6]. Producers should follow breed-specific recommendations and local regulations for their housing system.

How often should I clean and disinfect the layer house?

Cleaning frequency is associated with disease risk. A study of poultry farms in Pakistan found that disease outbreaks were associated with low cleaning frequency [12]. Houses should be cleaned and disinfected between flocks, and regular cleaning of feeders, waterers, and egg collection equipment should be part of the daily routine.

What lighting program should I use for laying hens?

Lighting programs should provide increasing day length to stimulate lay and constant day length to maintain production. During rearing, day length should be held constant or gradually decreased. Photostimulation typically occurs between 16 and 20 weeks of age, with day length increased to 13 to 14 hours and then extended to a maximum of 16 to 17 hours.

How do I know if my hens are heat stressed?

Signs of heat stress include panting, reduced feed intake, increased water intake, and decreased egg production. The heat stress review described heat stress as a multi-systemic disruption affecting egg production, shell quality, feed efficiency, and hen welfare [18]. Producers should monitor temperature at bird level and implement cooling measures when temperatures exceed the thermal comfort zone.

What records should I keep for my layer flock?

Daily records should include egg production, mortality, feed consumption, water consumption, and treatments. Weekly records should include egg weight and body weight. Monthly records should include production performance summaries and financial data. Records are only useful if they are reviewed regularly and used for decision making.

How can I reduce antimicrobial use on my farm?

Reducing antimicrobial use requires prevention through biosecurity, vaccination, and good management. The antimicrobial use review identified biosecurity and herd health plans as key interventions to reduce antimicrobial use [10]. Producers should work with their veterinarian to develop a herd health plan and to use antimicrobials only when necessary.

What should I do if egg production drops suddenly?

A sudden production drop requires immediate investigation. Check feed and water supply, environmental conditions, and signs of disease. Review records to determine when the drop started and whether it is affecting the whole flock or specific areas of the house. Contact a veterinarian if the cause is not immediately apparent.

How do I manage a free range layer flock?

Free range management requires attention to range access, predator control, and biosecurity. An Australian study found that most free range layer farms granted range access at a set time each morning, most commonly between 9:00 and 10:00 am, and birds were placed back inside sheds at dusk [6]. Range rotation, shelter provision, and predator exclusion are essential for free range success.

Related Farming Guides

• Farm Lighting Management for Animal Housing
• Veal Production Systems: Housing, Nutrition, and Welfare
• Pig Farm Lighting Programs: Photoperiod and Intensity for Production
• Camel Farm Record Keeping: Production, Health, and Financial Records
• Dry-Lot Dairy Production Systems: Management, Feeding, and Environmental Considerations

References and Further Reading

• FAO Animal Production and Health. Food and Agriculture Organization of the United Nations.
• Animal Health and Welfare. USDA National Agricultural Library.
• Animal and Veterinary Resources. U.S. Food and Drug Administration.
• Animal Health and Welfare. World Organisation for Animal Health.
• Animal Production and Protection. USDA Agricultural Research Service.
• Comparisons of management practices and farm design on Australian commercial layer and meat chicken farms: Cage, barn and free range.. PloS one, 2017.
• Assessing farmers' perspective on antibiotic usage and management practices in small-scale layer farms of Mymensingh district, Bangladesh.. Veterinary world, 2019.
• Correction: Comparisons of management practices and farm design on Australian commercial layer and meat chicken farms: Cage, barn and free range.. PloS one, 2018.
• The impact of management practices on the disease and mortality rates of broilers and layers kept by small-scale farmers in Dodoma urban district, Tanzania.. Heliyon, 2024.
• A review of the predictors of antimicrobial use and resistance in European food animal production.. Frontiers in antibiotics, 2023.
• A Description of Laying Hen Husbandry and Management Practices in Canada.. Animals : an open access journal from MDPI, 2018.
• A cross-sectional survey of poultry management systems, practices and antimicrobial use in relation to disease outbreak in Pakistan.. BMC research notes, 2025.
• Comparative analysis of soil quality and enzymatic activities under different tillage based nutrient management practices in soybean-wheat cropping sequence in Vertisols.. Scientific reports, 2024.
• Using Campylobacter hepaticus as an indicator organism to assess biosecurity on commercial egg farms.. 2026.
• Hippocampal plasticity predicts behavioral lateralization and stress resilience in laying hen chicks.. 2026.
• Research note: Spatial and temporal distribution of poultry red mite infestations in non-caged barn and free-range laying hen systems.. 2026.
• Moving hens into cages affects cognitive performance, extinction learning and motivation for rewards.. 2026.
• Integrated Stress Physiology and Mitigation Strategies for Heat Stress in Layer Chickens-Review.. 2026.
• Effects of Genetic and Production Type on Egg Cholesterol and the Yolk-Albumen Ratio in Slovenian Chicken Genotypes Under Standardised Conditions.. 2025.
• Performance, Skeletal traits, and welfare indicators of four laying hen strains in aviary housing under common management.. 2026.
• Thermal stability of multi-tier layer hen housing with all-year sidewall inlet ventilation system.. 2025.
• Insights into the Spatial and Temporal Variability of Soil Attributes in Irrigated Farm Fields and Correlations with Management Practices: A Multivariate Statistical Approach. Water, 2022.
• OPTIMIZING ANIMAL WELFARE IN COMMERCIAL LAYING HENS THROUGH NOVEL MANAGEMENT PRACTICES AND FARM MANAGER EVALUATION. 2020.
• Utilizing MapBox API, Java, and ICT in the creation of agricultural interactive maps for improved farm management and decision-making. AIMS Agriculture and Food, 2024.
• Biosecurity practices on Australian commercial layer and meat chicken farms: Performance and perceptions of farmers. Plos One, 2018.
• Sustainability of Smallholders in the Local Food System: A Study of Chicken Layer Farms in Nakhon Phanom Province, Northeast Thailand. Sustainability Switzerland, 2022.
• Biosecurity practices in commercial chicken farms: Contributing factors for zoonotic pathogen spread. IJID One Health, 2025.

This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.