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Poultry ventilation
Ventilation in a poultry house supplies fresh air that is essential to sustain life. It also helps reduce the extremes of temperature, humidity and air contamination to tolerable limits for confined chickens. Improved ventilation systems have also made possible the high density populations of livestock and poultry in confinement, thus reducing the building cost per unit housed. This is economically important since it reduces production and labour costs. Ventilation air removes excess heat, moisture, dust and odours from the building and, at the same time, dilutes airborne disease organisms. Properly designed winter systems also conserve energy by utilising heat generated by the birds. Providing proper ventilation to poultry is an art but it can be mastered by any determined and willing poultry grower. It is a challenge, however, since poultry houses are different and ventilation requirements change with time of day, season, temperature, humidity, wind, bird age and density.
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Brian Fairchild (University of Georgia) talks about common misconceptions regarding this system, possible overuse and its impact on litter conditions and poultry welfare, in this interview during IPPE 2023 in Atlanta, USA....
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Interest in plastic evaporative cooling pads has been steadily increasing since their introduction approximately ten years ago, especially for producers with water quality issues. Though for the most part six-inch plastic pads are interchangeable with six-inch paper pads, and can produce similar cooling, this doesn’t mean there are not significant differences between plastic and paper pads. Not taking into account these potentially important differences can result in an increased...
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Tom Tabler (The University of Tennessee) discusses how to manage poultry litter and effectively use ventilation to avoid health and welfare issues, in this interview during IPPE 2023 in Atlanta, USA....
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When placing chicks it is crucial to their future performance and health to make sure the litter they are placed upon has been thoroughly warmed. Though the air in a house can be heated relatively quickly, insuring the litter throughout a brooding area is heated to between 85°F and 95°F can take from 12 and 36 hours depending on the type of heating system, level of air movement, house tightness, litter moisture level, etc. Since the chicks are in constant contact with the litter,...
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Mike Czarick (University of Georgia) explains how this application can help you assess how much you need to ventilate your poultry house, in this interview during IPPE 2023 in Atlanta, USA....
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APRIL 4 @ 8:00 AM - APRIL 6 @ 11:00 AM EDT
$450.00 – $550.00
This intensive training program has been specifically designed for those who want to learn more about poultry house environmental management during hot weather. The workshop consists of lectures...
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When it comes to controlling both the environment within a poultry house and heating costs during cold weather, house tightness is of utmost importance. This is because only the air that exhaust fans draw in through a house’s air inlet system will be heated and dried by the warm air collecting near the ceiling before...
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One of the biggest complaints surrounding the poultry houses is the smell of manure. The ammonia concentration in poultry houses not only contributes to the smell but can be harmful for both the birds and the workers who frequent the barn. This article is about how ammonia gas is formed, its impact on the birds and how to control ammonia levels in poultry houses. Ammonia emission in poultry houses Ammonia emission is one of the greatest concern in poultry houses....
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Figure 1. Damaged fans with butterfly shutters For decades, the “slant wall” fan was the preferred poultry house exhaust fan (Figure 2). Testing found that by simply...
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Dr. Mike Czarick, Senior Public Service Associate at University of Georgia, discusses the principles of keeping birds cold during hot weather during the XXII Latin American Poultry Congress, August 2011....
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Mike Czarick (University of Georgia) explained the advantages of doing this and the costs implications of using improved circulation fans, during IPPE 2019 in Atlanta, USA....
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Brian Fairchild and Connie Mou (University of Georgia) shared their research on adequate levels of humidity and air movement to keep the litter dry, during IPPE 2019 in Atlanta, USA....
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Though paper evaporative cooling pads have been used by poultry producers for decades, plastic pads are a relative new phenomenon. As with any new product, there are a lot of questions. By far the most common question is whether plastic pads can produce the same level of air cooling as traditional paper pads. In short, the answer is yes. But just...
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Figure 1 illustrates the amount of water which will evaporate from properly wetted, 15 cm paper evaporative cooling pad system, as a function of outside temperature and relative humidity. The amount of water evaporated is provided in terms of gallons per minute per 100,000 cmh of operating tunnel fan capacity. For example, if a house had...
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Figure 1 illustrates the incoming air temperature for a properly wetted, six-inch evaporative cooling pad, while Figure 2 illustrates the predicted incoming relative humidity. The...
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The house has been preheated for 36 hours to 92°F. The chicks will be arriving in a few hours and the controller’s six temperature sensors (positioned one foot above the floor) indicate the air temperature is between 91 and 92°F (Figure 2). A thermal image indicates the floor temperature is between 87 and 102°F...
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Does high humidity affect the performance of exhaust fans? Yes, but probably not as much as you think and not in the way you may believe. Most people believe that humid air is heavier than dry air. After all, humid air has more moisture in it and therefore should weigh more than air that contains less moisture. But, in actuality, humid air...
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INTRODUCTION Brazilian poultry industry is highly relevant for the country economy. In 2016 a total of 13 million tons of broiler meat was produced, and nearly 35% was exported. (ABPA, 2017). Broiler production is carried out in several variations of house design. However, most of the production in the integrated system is done in open-sided houses with lateral polypropylene curtains, and with solar orientation East-West. The inside cooling is a combination of natural and forced...
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INTRODUCTION The Amazon rainforest is an important regulatory mechanism of the tropical atmosphere and its climate variation, performing important functions in the climate equilibrium of several ecosystems and their inhabitants. The region also has unique climate and environment characteristics (Fisch et al., 1998). The development of poultry production in the region thus presents several challenges related to birds’ environmental comfort, depending on the type of...
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Figure 1. Evaporative cooling system with plastic pads. Little has changed when it comes to poultry house evaporative cooling pads over the last 30 years. Yes, there have been some relatively minor changes in things such as...
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