Journal•ISSN: 0043-9339
Worlds Poultry Science Journal
Cambridge University Press
About: Worlds Poultry Science Journal is an academic journal published by Cambridge University Press. The journal publishes majorly in the area(s): Poultry farming & Biology. It has an ISSN identifier of 0043-9339. Over the lifetime, 2093 publications have been published receiving 60812 citations.
Topics: Poultry farming, Biology, Broiler, Population, Yolk
Papers published on a yearly basis
Papers
More filters
TL;DR: This review focuses on mannanoligosaccharides (MOS) as alternative to antibiotics using research results obtained by various authors in recent years.
Abstract: Since in-feed antibiotics (IFAs) are being taken out of broiler diets around the world, beginning in Sweden in the year 1986, the search for alternatives to replace IFAs has gained increasing inter...
462 citations
TL;DR: Infectious bursal disease (IBD), caused by an avibirnavirus, has been an economically significant, widely distributed condition affecting immature chickens since 1960.
Abstract: Infectious bursal disease (IBD), caused by an avibirnavirus, has been an economically significant, widely distributed condition affecting immature chickens since 1960. The classical type 1 conventi...
459 citations
TL;DR: In fact, fear is now widely regarded as an undesirable state of suffering by many members of the public, the scientific community, welfare and policy groups, as well as by a growing number of farmers as mentioned in this paper.
Abstract: Fear is now widely regarded as an undesirable state of suffering by many members of the public, the scientific community, welfare and policy groups, as well as by a growing number of farmers. At fi...
451 citations
TL;DR: Using modern approaches to analyse the structure of bacterial communities, it is found that 90% of the bacteria in the chicken gastrointestinal tract represent previously unknown species and more than half of the 640 different species found represent previouslyunknown bacterial genera.
Abstract: Bacteria in nature appear as diverse communities, which may comprise of hundreds of different species. The shared capacity of the bacterial communities to adapt in any imaginable set of conditions is remarkable. Many bacteria have growth requirements, as yet undiscovered, which are fulfilled by their natural habitats. Indeed, bacterial communities have members specialized on different functions and providing vital elements to other bacteria living in the same community. Therefore, most bacteria cannot easily be isolated from their habitats by the routine culturing methods used in most laboratories today. To overcome the difficulties in culturing of individual microbes, modern approaches analyse the structure of bacterial communities by determining the characteristic features of the microbial DNA extracted from the community samples. Using such techniques we have found that 90% of the bacteria in the chicken gastrointestinal tract represent previously unknown species. Furthermore, more than half of the 640 different species found represent previously unknown bacterial genera. Bacteria in the gastrointestinal tract derive most of their carbon and energy from dietary compounds which are either resistant to attack by digestive fluids or absorbed so slowly by the host that bacteria can successfully compete for them. The performance improvements on use of a growth promoting feed antibiotic is due to factors such as reduced competition for nutrients in the small intestine, reduced local inflammation due to control of pathogens, and reduced size of intestine. Since bacterial species differ in their substrate preferences and growth requirements, the chemical composition and structure of the digesta largely determines the species distribution of the bacterial community in the gastrointestinal tract. Consequently, it should be possible to shift the microbial community from harmful to non-harmful bacteria by changing the diet.
444 citations
TL;DR: This review on avian blood leucocyte responses to stress covers the literature from the early 1980s and considers only non-infectious hormonal responses of leucocytes to stress mediated either by n...
Abstract: This review on avian blood leucocyte responses to stress covers the literature from the early 1980s. It considers only non-infectious hormonal responses of leucocytes to stress mediated either by n...
433 citations