phd.nawfal

As discussed in Part 1 of "Balancing Poultry House Moisture Levels," one of the primary objectives of a minimum ventilation system during cold weather is to manage house moisture levels. If we get rid of too much moisture, a house will become dry and dusty, which can lead to respiratory issues. Conversely, if we don't get rid of enough moisture, our litter will become wet and cake ov ...

When it comes to setting minimum ventilation fan runtimes during cold weather it is important to keep in mind that one of the primary objectives of minimum ventilation is to manage house moisture levels. Too much fan runtime will not only result in excessive moisture removal from a house, leading to dry, dusty conditions which can lead to bird respiratory issues, but it will also result in high he ...

Windrowing has become a very popular method of managing litter between flocks. In order to get the most benefit out of windrowing, the litter needs to be relatively damp. How damp? Ideally, the litter moisture content would be between 25 and 35%. At this level of litter moisture, when you grab a handful of litter and squeeze it, it would form a very tight ball. Most research has found a litter moi ...

The use of enzymes in animal feed was first reported in 1925 (Hervey 1925) but the chemistry of target feed substrate has been understood during the last two decades only. The field of biotechnology has introduced various advancements in enzyme production technology specifically in fermentation and microbiological processes resulting in production of enzymes in affordable range to be used for comm ...

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 weighs less than dry air. This is because moist air contai ...

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 100,000 cmh of tunnel fan capacity and the outside temperatu ...

Feed accounts for more than 70% of total production cost in Poultry and optimization of performance using least feed cost is one of the pre requisites to ensure profitable Poultry production. With changes in the raw material availability, price, quality and so on, there is a huge demand to finding alternate forms of ingredients which optimise the performance and at the same time do not allow the f ...

Unlike many aspects of operating a tunnel-ventilated house during hot weather, the performance of an evaporative cooling pad system is relatively predictable. This is because there are well defined relationships between the cooling produced by a pad system and water usage, pad area, outside temperature/humidity, and water temperature. Since most evaporative cooling pads are essentially identical a ...