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Managing Transitional Ventilation
Describes the conditions under which broiler producers with tunnel-ventilated houses can improve bird comfort and performance by using some of the tunnel fans to bring air in through the vent box (sidewall) air inlets instead of through the tunnel inlets.
Need for Insulation in Warm-Climate Poultry Housing
Points out dangers of severe performance losses and high mortalities from radiant heat transfer from uninsulated ceilings/roofs; explains insulation basics and poultry house requirements for cost-effective performance benefits, with an illustrated guide to selecting insulation materials.
A 10-Point Guide to Successful Tunnel Ventilation Management
Broadside (one sheet printed one side only) lists ten top keys to getting top bird performance using tunnel ventilation, with brief practical explanations.
Planning for Commercial Layer Expansion or Renovation
Discusses key planning factors required for successful layer house expansion or renovation; high-rise vs battery house alternatives, including ventilation requirements, and manure handling and disposal considerations; data tables and illustrations.
Using Sticky Cards to Monitor Fly Populations in Poultry Houses
Several methods are available for sampling the adult housefly, Musca domestica (L.), on poultry farms to estimate relative population densities. These methods include modified Scudder grids, baited jug-traps, spot cards, sticky ribbons and the moving sticky tape. The spot card is probably the most easily and most frequently used sampling tool.
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Controlling Odors from Confined Animals
You probably have good reasons for wanting to minimize the offensive odors released from your confined animal operations. The operation and its surroundings are more pleasant for you as operator, for your family, and for visitors or neighbors. Frequently occurring odors can lead to complaints by neighbors. If you don't provide relief voluntarily, you could face court litigation.
Why Ventilate Animal Buildings?
Proper ventilation of buildings often is the most overlooked and misunderstood management practice of the livestock producer. You select genetically sound stock, purchase good quality feed, supply a well-balanced ration, and provide shelter. What else is there to raising livestock?
Basic Ventilation Considerations for Livestock or Poultry Housing
Most producers would agree that all buildings that house livestock and poultry need ventilation. The real discussion begins when you try to determine how much ventilation you must provide. Any discussion of how much ventilation is needed must start by asking, "Why ventilate?" The answer varies with season, type of building and floor, number and age of livestock, and your waste-handling system.
Manure Management, Odor and Diseases Control
Livestock producers are going through much criticism for creating pollution and diseases problems. In the mean time farmers having production problems (costly manure removal, energy consumption, medicine cost and most important barn is not save working place.) One of the long-standing and costly problems of handling manure has been the absence of simple, reliable, accurate and long-lasting system of manure collection and transportation out of the barn, Historically, several methods of manure handling were used in the industry assumed that manure would be held for some time in the barn. The Enterprise tendency to lager livestock production, with a concern for quality of food in efficient environment, requires a number of radical changes and development of new methods for proper and efficient manure management.
Hot Weather Management in the Poultry House
A number of features of the building, such as orientation, amount of insulation, and amount of roof overhang, have a direct bearing on inside temperatures. The orientation of the building should be such that prevailing winds are used to an advantage and such that the sun does not shine directly into the building. In Oklahoma an east-west orientation will usually accomplish both objectives.
Factors Involved in Site Selection for New and Modified Poultry Facilities
As the importance of poultry production increases in Oklahoma and as larger buildings are being used to house birds, a number of factors must be considered before building a new building or modifying an existing one. If environmental and production concerns are to be addressed, proper site planning is a must.
Key Water Factors for Broiler Production
Water is a vital necessity for any poultry production, and takes on additional urgency in modern houses using evaporative cooling. Getting an adequate water supply is critical and can be a problem for new installations. Water quality is equally important. Water quality issues can hurt performance and production, in some cases without a grower being aware of what is causing the problem. This newsletter outlines factors a grower needs to know to plan a new installation or to evaluate existing facilities for adequate water supply and quality.
What Is the Most Important Part of Your Poultry House Ventilation System?
Explains why air inlets are crucial to successful ventilation, outlining how inlets work and giving pointers on types of inlets, configuration and adjustment for best airflow; includes graphic illustrations of proper and incorrect configurations and adjustments.
Value of Clean Shutters Proven in Laboratory Test
Gives results on wind-tunnel tests conducted with a typical shutter in use on an Alabama poultry house, mounted on a new fan and tested before and after cleaning, with a test on the fan with no shutter also done as comparison. Test showed that dirt accumulation caused losses in fan performance of 25% or more, showing need for frequent
Tests Show Fan Shutter Air Leakage Causes Cold Weather Problems
Presents test results showing extent of fan shutter air leakage for different types of shutters and under different conditions, explains harmful effects on bird performance, especially during minimum ventilation, and suggests steps to correct problem.
Getting the Most from Evaporative Cooling Systems in Tunnel Ventilated Broiler Houses
Explains requirements for effective cooling, how relative humidity affects operation, water requirements, use of weather data in planning systems, and operating characteristics and pros and cons of different cooling technologies.
Fly Control in the Poultry House
Fly control should be an integral part of every poultry producer's management program. Flies spread disease and filth, are a nuisance to employees, and can become problems for nearby farms and residences. As the number of producers decreases and the size of remaining poultry operations increase, larger units may provide the opportunity for flies to concentrate and therefore create even larger problems.
Rodent Control in the Poultry House
Rats and mice are unwanted and frequently unnoticed guests in poultry houses. Because of the method of construction design, some poultry houses provide easy access to rodents. Once inside the house, rodents can readily burrow under dry manure, into dirt floors, into deep litter, inside hollow walls, or into insulation in walls and ceillings. Regardless of where rodents live, they can cause a number of different problems which usually cost producers money.
Wild Bird Control in the Poultry House
Poultry houses of all kinds can be troubled with wild birds. Not only do the wild birds cause messes with their droppings and nests,but they can consume or contaminate large quantities of feed and be carriers of diseases and parasites. Another problem with birds is that they can damage the insulation in poultry houses resulting in the loss of the insulating qualities. The most common problem birds in poultry houses are sparrows and starlings.
The Pay-off of Monitoring In-House Conditions
Outlines the benefits of using currently available technologies for monitoring temperature, ammonia, relative humidity, and airflow, points out cost and management factors, and explains how good monitoring can contribute to improved flock performance.
Coping with Cooler and Up-and-Down Weather
Reviews management of modern tunnel-ventilated houses in changeable or in-between weather, including tips on when to change ventilation mode setups, using transitional ventilation effectively, judging wind-chill effects, and understanding the economic benefits of maintaining optimum temperature.
Managing Broiler House Backup Systems to Avoid Catastrophic Losses
Explains the practical and economic considerations broiler producers need to keep in mind and the kind of backup systems they need to have in their houses to avoid losses due to power or equipment failures.
Managing Minimum Ventilation
Presents the criteria for use of minimum ventilation in cold weather or with very young birds and outlines critical factors in managing in-house air flow to conserve house heat and avoid chilling birds. Poultry Ventilation Pointers
Economics of Commercial Layer House Ventilation
Describes the temperature and ventilation requirements of laying hens and importance of providing uniformity of temperature throughout house, and outlines the cost effectiveness of modern environmental control systems, with conventional vs environmental control cost comparison example from a Midwest U.S. commercial operation.
Light Intensity Measurements in Poultry Houses
Light intensity is an important management factor for breeder type poultry. There is evidence suggesting a minimal threshold intensity to obtain optimal reproduction performance. Most poultry managers use the conventional light meter (photometer) when attempting to ascertain light intensity (footcandles or lux) in a house or when trying to equalize intensity among several houses. This is acceptable when only one type of lamp is used to provide supplemental light. However, more than one type of artificial light source may be used in current light management practices.
Lighting Programs for replacement Pullets
Lighting programs are among the most important environmental management tools affecting flock performance. As there is an interaction between lighting programs used during the growing and laying period, it is important to plan a coordinated program for the life of each flock. This publication addresses lighting program decision making during the growing period.
Darkout Pullet Housing Design Considerations
Covers basic issues in darkout house ventilation design, including effects of light traps and evaporative cooling installations on fan performance and fundamentals of ventilation management in tunnel, transitional and minimum ventilation modes. Provides tables and charts on light trap, evaporative cooling pad, and fan performance, and an example ventilation system design for a typical moderm darkout house.
Controlling Light in Broiler Production
Many companies now use light control for broiler production. These programs exist in many variations, and growers often ask how important they are and what their benefits really are. This newsletter covers the basics, outlining how and why light control is used, showing example programs, and giving practical information on techniques for darking out the broiler house and for managing lights.
Importance of Proper Blackout Housing
The major environmental cue for control of reproduction is daylength. Reception of light for reproductive purposes by the pullet is not primarily through the eyes but rather by the light energy penetrating the skull, skin and feathers and then perceived by an organ within the brain.
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Keys to Getting Good Performance from Your Evaporative Cooling System
Covers the most important practical keys to good cooling, including checking for adequate fan performance and house tightness, how much cooling pad area is really needed, and how to keep pad efficiency up; outlines the economic benefits of having a top-notch, class-A house vs. the typical average house.
Managing Broiler House Backup Systems to Avoid Losses
Outlines the need for backup devices to avoid catastrophe in modern power ventilated poultry houses and briefly presents the major design features and maintenance requirements of the most important types of backup systems.
Three Simple Steps for Evaporative Cooling Efficiency
Briefly outlines key operating and maintenance steps needed to keep recirculating pad evaporative cooling systems working at top efficiency.
Temperature Effects on Broilers - A Quick Reference Guide
Broadside (one sheet printed one side only) highlights what you see in bird and flock behavior for too-cool to too-warm conditions, with brief practical explanations of what's going on that affects bird performance.
Factors to Consider in Breeder House Ventilation Design
Covers goals of in-house environmental management for breeders, criteria for successful use of tunnel ventilation with evaporative cooling, transitional and minimum ventilation, and forced air heat. Includes sample ventilation system design for typical modern breeder house.