phd.nawfal

During the summertime, most broiler producers would not consider a house temperature in the low 80's of particular concern, even with a house full of near-market-age birds. But in truth they should be. Because without sufficient air speed, the use of evaporative cooling pads to keep house temperature to a minimum can cause bird body temperatures to quickly rise even if the house temperature is rel ...

Heavy broilers with high breast meat yield are more susceptible to heat stress. Under high relative humidity, indoor air velocity (AV) becomes critical to offer optimal environmental conditions for growth and health. Four experiments were conducted under southeastern summer conditions to evaluate the effects of AV treatments (High vs. Low) on live performance, cut-up yields, meat quality and welfa ...

What are the vegetable proteins?• Soy Protein 65%• Fermented soybean meal 54%• Extruded and micronized soybean meal 48%• Extruded whole Soy meal soy 36%• Potato protein 80%• Algae meal 55%Animal protein is a feed ingredient of high quality and easily digestible, which is used as a supplement to diets for young animals. However, over the years, alternatives derived fro ...

1. IntroductionChickens represent the most widespread source of animal protein that is acceptable for nearly all communities, and, not surprisingly, the highly efficient commercial production of chickens is practised daily worldwide. However, chickens also represent a reservoir of zoonotic agents like Salmonella or Campylobacter.Chickens in commercial production are hatched from disinfected eggs i ...

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 ...

Litter management is a cornerstone of sustainable poultry production, directly impacting bird health, environmental safety, and community acceptance. Among the many challenges faced by poultry producers, fly infestation and persistent odour remain the most difficult to control. These issues not only affect farm hygiene but also pose risks of disease transmission, regulatory scrutiny, and strained ...

1 IntroductionThe rising number of recently reported human illnesses with bacterial infections resistant to multiple antibacterial agents has become a fundamental concern in recent years [1, 2]. This phenomenon has become a serious concern with regard to the emergence of antibiotic-resistant bacteria called “superbugs” [3, 4], especially when considering that humans only started using ...

1. IntroductionRecent trends in food animal production emphasize reducing antibiotic use due to the growing threat of antimicrobial-resistant bacteria [1,2]. Consequently, there is a critical need for sustainable alternatives that promote growth and health while maintaining production efficiency. Phytobiotics are plant-derived compounds that have emerged as promising candidates for this role ...

Poultry is a homothermal animal, and its body covers with feathers to increase its cold resistance. However, Taiwan is an island that lies in the tropic of cancer, and the general climate is marine tropical. During summer, this mechanism is adverse to heat dissipation and causes heat stress.Heat stress is a familiar stress effect that will affect animals’ growth performance, productivity, an ...