phd.nawfal

When it comes to predicting the likelihood that birds will experience heat stress conditions on a given day, knowing outside relative humidity first thing in the morning is not particularly useful. Though air moisture levels have significant impact on bird comfort, relative humidity is constantly changing over the course of a day. In the morning relative humidity will tend to be between 80 and 100 ...

Feed additives have a promising impact on broiler production in improving performance and reducing the incidence of diseases in the post-antibiotic era (Ayalew et al. 2022). However, there are limited data that illustrate the effect of feed additives on broiler performance under necrotic enteritis (NE) challenge. Therefore, this study was conducted to determine the impact of an enzyme (xylanase, 3 ...

IntroductionRoutine supplementation of dietary Cu, as well as other trace minerals, is intended to prevent deficiencies that originate from the lack of sufficient amounts of this micromineral in the feeds. Copper sulfate (CuSO4) is traditionally utilized as the source Cu of supplementation in poultry feeds because of its wide availability and low cost (1).Total supplemental Cu in commercially form ...

IntroductionInert digestibility index markers are the anchor of many feeding trials designed to analyse nutrient utilisation and amino acid digestibility along the gastrointestinal tract of animals. Marker use is widely accepted as a method less laborious than total tract retention.Additionally, it enables the determination of digestibility along intestinal sections in ruminant and non-ruminant an ...

You are frying eggs for breakfast. You get distracted and the next thing you know your eggs are burning and your kitchen is filling with smoke. What do you do first? Open the window to get rid of the smoke or remove the skillet from the stove to stop the generation of the smoke? You of course, remove the skillet from the stove, then open windows because opening the windows in itself doesn't so ...

A poultry house controller's temperature sensors are, in a sense, its "eyes" enabling it to “observe” what is happening throughout a poultry house so it can accurately determine what equipment it needs to operate to maintain the proper environmental conditions throughout a house. As a result, a controller’s ability to maintain proper growing conditions for the birds is only a ...

When building a new house or retrofitting an older one, tunnel fan selection is one of the most, if not the most important decision a producer has to make. A house’s fans are essentially the engine of the ventilation system and as a result have a significant effect on a producer’s ability to maintain the proper environmental conditions throughout the year. Furthermore, with rising elec ...

IntroductionControlling production costs and animal welfare are important factors for breeders. Feed accounts for 50 to 70% of the production cost in poultry production (van Horne, 2018). The feed conversion ratio (FCR), which is the ratio of feed consumption to meat or egg production, is an important criterion for the profitability of these farms. It is also an indicator of the environmental impa ...