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1. Evaluating the influence of turbulence models used in computational fluid dynamics for the prediction of airflows inside poultry houses

Author:
Küçüktopcu, Erdem; Cemek, Bilal
Source:
Biosystems engineering 2019 v.183 pp. 1-12
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; air temperature; models; prediction; standard deviation; turbulent flow;     Show all 6 Subjects
Abstract:
... There are various turbulence models in the computational fluid dynamics (CFD) literature but none has so far proven to be universally applicable. Accurate simulations require the proper choice of model appropriate for each particular situation. In this study, the performance of three types of k-ɛ turbulence model, the standard k-ɛ, renormalisation group (RNG) k-ɛ, and realisable k-ɛ, were evaluate ...
DOI:
10.1016/j.biosystemseng.2019.04.009

2. A new ventilation system to reduce temperature fluctuations in laying hen housing in continental climate

Author:
Wang, Yang; Zheng, Weichao; Li, Baoming; Li, Xuanyang
Source:
Biosystems engineering 2019 v.181 pp. 52-62
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; air; air temperature; climatic zones; cooling; egg production; financial economics; heat stress; laying hens; ventilation systems;     Show all 10 Subjects
Abstract:
... Poultry suffer from large temperature variations with traditional tunnel ventilation and wet-pad evaporative cooling (TV) system in continental climates, which negatively influences production performance, resulting in significant economic losses. An ideal ventilation system is desired for retrofitted and new poultry houses. A new ventilation (NV) system was designed to mitigate the air temperatur ...
DOI:
10.1016/j.biosystemseng.2019.02.017

3. Broiler weight forecasting using dynamic neural network models with input variable selection

Author:
Johansen, Simon V.; Bendtsen, Jan D.; R.-Jensen, Martin; Mogensen, Jesper
Source:
Computers and electronics in agriculture 2019 v.159 pp. 97-109
ISSN:
0168-1699
Subject:
poultry housing,   etc   ; broiler chickens; case studies; environmental factors; farms; meat production; models; monitoring; planning; poultry meat; poultry production; temperature;     Show all 12 Subjects
Abstract:
... The global demand for poultry meat is predicted to increase by 18% between 2015–17 and 2027, which motivates the need for better tools for production monitoring, planning and optimization. This paper presents the first results on broiler (chicken for meat production) weight forecasting intended for production planning and monitoring using environmental broiler house conditions – such as heating, v ...
DOI:
10.1016/j.compag.2018.12.014

4. Ventilation rate formula for mechanically ventilated broiler houses considering aerodynamics and ventilation operating conditions

Author:
Park, Gwanyong; Lee, In-bok; Yeo, Uk-hyeon; Ha, Taehwan; Kim, Rack-woo; Lee, Sang-yeon
Source:
Biosystems engineering 2018 v.175 pp. 82-95
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; aerodynamics; breeding; field experimentation; models; pollutants; static pressure;     Show all 7 Subjects
Abstract:
... Precise ventilation control of broiler houses is essential to effectively exhaust pollutants and attain the required breeding environment. However, the ventilation rate used in practise is always lower than the desired or designed value because of difficulties in measuring the pressure difference between the indoor and outdoor pressure of the facility. In this study, a new formula was developed to ...
DOI:
10.1016/j.biosystemseng.2018.09.002

5. Evaluation of the performance of PoultryBot, an autonomous mobile robotic platform for poultry houses

Author:
Vroegindeweij, Bastiaan A.; Blaauw, Sam K.; IJsselmuiden, Joris M.M.; van Henten, Eldert J.
Source:
Biosystems engineering 2018 v.174 pp. 295-315
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; algorithms; eggs; farmers; hens; robots; surveys;     Show all 7 Subjects
Abstract:
... Assessment of animal status, housing conditions and manually collecting floor eggs are the major daily tasks for poultry farmers. To assist the farmer in these tasks, PoultryBot, an autonomous mobile robot for use in poultry houses has been developed. In earlier research, several components of PoultryBot were discussed in detail. Here, performance of the robot is evaluated under practical conditio ...
DOI:
10.1016/j.biosystemseng.2018.07.015

6. Competitive exclusion: A tool to combat extended-spectrum β-lactamase-producing Escherichia coli strains in chickens

Author:
Methner, U.; Friese, A.; Rösler, U.
Source:
Research in veterinary science 2019 v.123 pp. 124-128
ISSN:
0034-5288
Subject:
poultry housing,   etc   ; Escherichia coli; European Union; beta-lactamase; broiler chickens; cecum; chicks; competitive exclusion; genes; humans; hygiene; intestinal microorganisms; liver; poultry meat; protective effect; risk reduction;     Show all 16 Subjects
Abstract:
... Apart from effective hygiene regimes in poultry houses, measures to increase the resistance of birds against intestinal colonisation with EEC (= extended-spectrum β-lactamases [ESBL] and AmpC-type [AmpC] beta-lactamses producing Escherichia coli) might be one tool to reduce the risk of transferring these organisms from broilers via poultry meat to humans. The study aimed to gain detailed informati ...
DOI:
10.1016/j.rvsc.2019.01.003

7. Development of pull and push–pull systems for management of lesser mealworm, Alphitobius diaperinus, in poultry houses using alarm and aggregation pheromones

Author:
Hassemer, Marla J; Borges, Miguel; Withall, David M; Pickett, John A; Laumann, Raul A; Birkett, Michael A; Blassioli‐Moraes, Maria C
Source:
Pest management science 2019 v.75 no.4 pp. 1107-1114
ISSN:
1526-498X
Subject:
poultry housing,   etc   ; Alphitobius diaperinus; adults; aggregation pheromones; alarm pheromones; bacteria; bait traps; benzoquinones; disease susceptibility; fungi; insect pests; insecticides; pesticide application; pheromone traps; poultry production; viruses; Brazil;     Show all 17 Subjects
Abstract:
... BACKGROUND: The lesser mealworm, Alphitobius diaperinus (Coleoptera: Tenebrionidae), is the most important insect pest affecting poultry production around the world, with all life stages being susceptible to infection by bacteria, viruses and fungi. Control of A. diaperinus in poultry houses using intensive insecticide application is not effective due to the cryptic behaviour of this pest. Here, w ...
DOI:
10.1002/ps.5225

8. A simple mathematical method to estimate ammonia emission from in-house windrowing of poultry litter Part A Toxic/hazardous substances & environmental engineering

Author:
Ro, Kyoung S.; Szogi, Ariel A.; Moore, Philip A.
Source:
Journal of environmental science and health 2018 v.53 no.6 pp. 594-600
ISSN:
1532-4117
Subject:
poultry housing,   etc   ; ammonia; equations; flocks; heat; mass transfer; mathematical models; poultry manure; prisms; temperature;     Show all 10 Subjects
Abstract:
... In-house windrowing between flocks is an emerging sanitary management practice to partially disinfect the built-up litter in broiler houses. However, this practice may also increase ammonia (NH₃) emission from the litter due to the increase in litter temperature. The objectives of this study were to develop mathematical models to estimate NH₃ emission rates from broiler houses practicing in-house ...
DOI:
10.1080/10934529.2018.1428273

9. An automated positioning system for monitoring chickens’ location: Accuracy and registration success in a free-range area

Author:
Stadig, Lisanne M.; Ampe, Bart; Rodenburg, T. Bas; Reubens, Bert; Maselyne, Jarissa; Zhuang, Shaojie; Criel, Johan; Tuyttens, Frank A.M.
Source:
Applied animal behaviour science 2018 v.201 pp. 31-39
ISSN:
0168-1591
Subject:
poultry housing,   etc   ; animal behavior; animal welfare; automation; chickens; coppicing; grasslands; monitoring; rain; willows;     Show all 10 Subjects
Abstract:
... Free-range use in chickens is often suboptimal, and the full potential of outdoor access for chicken welfare may not be achieved. Many studies use visual observations of free-range use, imposing several limitations. An automated system capable of continuously monitoring the location of multiple individual birds over a long time period has the potential to increase the amount and accuracy of the ga ...
DOI:
10.1016/j.applanim.2017.12.010

10. Object discrimination in poultry housing using spectral reflectivity

Author:
Vroegindeweij, Bastiaan A.; van Hell, Steven; IJsselmuiden, Joris M.M.; van Henten, Eldert J.
Source:
Biosystems engineering 2018 v.167 pp. 99-113
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; cameras; eggs; hens; image analysis; lighting; reflectance; robots; wavelengths;     Show all 9 Subjects
Abstract:
... To handle surrounding objects, autonomous poultry house robots need to discriminate between various types of object present in the poultry house. A simple and robust method for image pixel classification based on spectral reflectance properties is presented. The four object categories most relevant for the autonomous robot PoultryBot are eggs, hens, housing elements and litter. Spectral reflectanc ...
DOI:
10.1016/j.biosystemseng.2018.01.002

11. Modelling the impact of air discharges caused by natural ventilation in a poultry house

Author:
Rojano, Fernando; Bournet, Pierre-Emmanuel; Hassouna, Melynda; Robin, Paul; Kacira, Murat; Choi, Christopher Y.
Source:
Biosystems engineering 2019
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; absolute humidity; air; air quality; buildings; climate; energy; equations; heat; hens; indoor environmental quality; latent heat; mass transfer; models; momentum; natural ventilation; prediction; temperature; time series analysis; wind direction;     Show all 20 Subjects
Abstract:
... Raising poultry in livestock buildings requires housing that can provide acceptable living conditions in terms of climate and air quality. Accurately assessing the interior climate dynamics of a naturally ventilated poultry house needs advanced computer-based modelling tools. The present work proposes a three-dimensional modelling tool that uses computational fluid dynamics (CFD). External and int ...
DOI:
10.1016/j.biosystemseng.2019.02.001

12. CFD modelling of airflow pattern and thermal environment in a commercial manure-belt layer house with tunnel ventilation

Author:
Tong, Xinjie; Hong, Se-Woon; Zhao, Lingying
Source:
Biosystems engineering 2019 v.178 pp. 275-293
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; air; air flow; air temperature; autumn; broiler chickens; cages; cold; cold season; cold stress; heat; heat stress; humidity; mixing; models; risk; seasonal variation; summer; temperature profiles; ventilation systems; winter;     Show all 21 Subjects
Abstract:
... Heat stress has become increasingly challenging for large-scale concentrated layer production. Tunnel ventilation has been widely used to abate heat stress, but it naturally forms large thermal gradients which result in non-uniform production performance and avian health risks associated with heat stress. Knowledge of the three-dimensional spatial distribution and seasonal variation of the indoor ...
DOI:
10.1016/j.biosystemseng.2018.08.008

13. Lactobacillus and dietary sunflower meal supplementation in layer diets: Effects on specific serum content and hydrogen sulfide concentration in layer manure

Author:
Saksrithai, K.; King, A.J.
Source:
Research in veterinary science 2019 v.122 pp. 64-71
ISSN:
0034-5288
Subject:
poultry housing,   etc   ; Lactobacillus; White Leghorn; acclimation; amylases; blood serum; byproducts; calcium; cholesterol; crossing; diet; drinking water; emissions; enzyme activity; feces; humans; hydrogen sulfide; odors; phosphates; phosphorus; probiotics; sulfates; sulfur; sunflower meal; sunflower seed; triacylglycerols;     Show all 26 Subjects
Abstract:
... Studies show that in poultry houses, hydrogen sulfide (H2S) is present in a much higher concentration than its odor threshold of 10 ppb for humans and has a short-lived deleterious effect on White Leghorns at concentrations of 0.2% H2S. A possible way to reduce H2S emissions (often exhausted into the environment) is to decrease its concentration in manure by adding high fiber byproducts and probio ...
DOI:
10.1016/j.rvsc.2018.11.014

14. A framework for crack detection of fresh poultry eggs at visible radiation

Author:
Abdullah, M.H.; Nashat, S.; Anwar, S.A.; Abdullah, M.Z.
Source:
Computers and electronics in agriculture 2017 v.141 pp. 81-95
ISSN:
0168-1699
Subject:
poultry housing,   etc   ; egg shell; eggs; poultry; support vector machines;     Show all 5 Subjects
Abstract:
... Visible radiation technology is increasingly being used for inspection of crack in the eggshell. However, the complexity of the eggshell together with the heterogeneity of the egg internal structures, resulted in very textured image especially when view under candling light. Hence, the inspection process is technically very challenging. In an attempt to improve the inspection performance, a refine ...
DOI:
10.1016/j.compag.2017.07.006

15. Assessment using CFD of the wind direction on the air discharges caused by natural ventilation of a poultry house

Author:
Rojano, Fernando; Bournet, Pierre-Emmanuel; Hassouna, Melynda; Robin, Paul; Kacira, Murat; Choi, Christopher Y.
Source:
Environmental monitoring and assessment 2018 v.190 no.12 pp. 724
ISSN:
0167-6369
Subject:
poultry housing,   etc   ; absolute humidity; air; animals; equations; heat; internal temperature; mass transfer; models; momentum; natural ventilation; prediction; wind;     Show all 13 Subjects
Abstract:
... Air inside poultry houses must be removed on a regular basis to prevent excess of heat, particles and noxious gases that can imperil animals. To cope with this issue, natural ventilation could be an effective method when assisted by accurate predictions. This study investigates air discharges caused by natural ventilation of a poultry house by means of a three-dimensional computational fluid dynam ...
DOI:
10.1007/s10661-018-7105-5

16. Air Ionization in Livestock Buildings – A Review

Author:
Herbut, Eugeniusz; Sosnówka-Czajka, Ewa; Skomorucha, Iwona
Source:
Annals of animal science 2018 v.18 no.4 pp. 899-905
ISSN:
2300-8733
Subject:
poultry housing,   etc   ; air; air ionization; air temperature; body weight; broiler chickens; buildings; humidity; ions; microclimate; microparticles; piglets; rearing; respiratory system;     Show all 14 Subjects
Abstract:
... Research has shown that microclimate is determined not only by air microparticles, but also by the degree of air ionization. Ions affect the body through the respiratory tract and skin. Exposure of reared chickens to elevated air temperature (37°C–23°C) was found to accelerate the break-down of negative ions compared to temperature lower by 10°C. Negative air ionization offsets the adverse effect ...
DOI:
10.2478/aoas-2018-0043

17. Optimising the design of confined laying hen house insulation requirements in cold climates without using supplementary heat

Author:
Wang, Yang; Zheng, Weichao; Shi, Haipeng; Li, Baoming
Source:
Biosystems engineering 2018 v.174 pp. 282-294
ISSN:
1537-5110
Subject:
poultry housing,   etc   ; air temperature; buildings; energy; equations; heat; heat tolerance; insulating materials; laying hens; model validation; models; stocking rate; China;     Show all 13 Subjects
Abstract:
... Supplementary heat is required when birds do not produce enough heat to maintain adequate air temperature in confined poultry houses in cold climates, and this consists of the largest proportion of building energy consumption. Thus, it is becoming increasingly apparent that the poultry houses need more insulation to retain heat in cold climates. With a well-insulated structure, the thermoneutral t ...
DOI:
10.1016/j.biosystemseng.2018.07.011

18. Using a Vegetative Environmental Buffer to Reduce the Concentrations of Volatile Organic Compounds in Poultry-House Atmospheric Emissions

Author:
Yao, Qi; Torrents, Alba; Li, Hong; Buser, Michael D.; McConnell, Laura L.; Downey, Peter M.; Hapeman, Cathleen J.
Source:
Journal of agricultural and food chemistry 2018 v.66 no.31 pp. 8231-8236
ISSN:
1520-5118
Subject:
poultry housing,   etc   ; acetone; emissions; ethanol; farms; hydroxyl radicals; methanol; nitrogen oxides; ozone; pollution; poultry production; ultraviolet radiation; volatile organic compounds;     Show all 13 Subjects
Abstract:
... Ground-level ozone is formed when volatile organic compounds (VOCs) react with hydroxyl radicals and nitrogen oxides in the presence of ultraviolet light. Research has typically focused on the release and control of VOCs from hydrocarbon processing; however, agricultural activities, such as poultry production, can also be VOC sources and potentially contribute to ozone pollution. Therefore, this s ...
DOI:
10.1021/acs.jafc.8b00088

19. Effect of supplementing moringa (Moringa oleifera) leaf meal and pomegranate (Punica granatum) peel meal on performance, carcass attributes, immune and antioxidant responses in broiler chickens

Author:
Rama Rao, S. V.; Raju, M. V. L. N.; Prakash, B.; Rajkumar, U.; Reddy, E. P. K.
Source:
Animal production science 2019 v.59 no.2 pp. 288-294
ISSN:
1836-0939
Subject:
poultry housing,   etc   ; Moringa oleifera; Newcastle disease; Punica granatum; additives; antibodies; antioxidant activity; body weight; broiler chickens; broiler feeding; brooders; cell-mediated immunity; chicks; dietary supplements; enzyme activity; experimental diets; feed conversion; glutathione peroxidase; glutathione-disulfide reductase; humoral immunity; leaves; lipid peroxidation; liver; males; phosphates; phytohemagglutinin; pomegranates; spleen; stainless steel; superoxide dismutase; vaccines;     Show all 31 Subjects
Abstract:
... An experiment was conducted to study the benefits of dietary supplementation of moringa (Moringa oleifera) leaf meal (MLM) and pomegranate (Punica granatum) peel meal (PPM) on the performance, carcass attributes, immune and antioxidant responses in commercial broiler chickens during 1–42 days of age. In total, 450 Cobb-400 broiler male chicks raised in wire-floor stainless-steel battery brooder pe ...
DOI:
10.1071/AN17390

20. Ammonia, Nitrous Oxide, Carbon Dioxide and Methane Emissions from Commercial Broiler Houses in Mediterranean Portugal

Author:
Pereira, José L. S.; Ferreira, Sílvia; Pinheiro, Victor; Trindade, Henrique
Source:
Water, air, and soil pollution 2018 v.229 no.12 pp. 377
ISSN:
0049-6979
Subject:
poultry housing,   etc   ; Mediterranean climate; ammonia; autumn; breeding; broiler chickens; carbon dioxide; cold; environmental factors; finishing; greenhouse gas emissions; hens; methane; nitrous oxide; Mediterranean region; Portugal;     Show all 16 Subjects
Abstract:
... Limited data are available on ammonia (NH₃), nitrous oxide (N₂O), carbon dioxide (CO₂) and methane (CH₄) emissions from poultry housing in Mediterranean countries. The aim of the present study was to assess the NH₃, N₂O, CO₂ and CH₄ emission rates from commercial breeding hen and broiler houses under Mediterranean climate conditions. Research was conducted at one commercial breeding hen house and ...
DOI:
10.1007/s11270-018-4026-4