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Probiotics and prebiotics in poultry nutrition
Under normal circumstances, there is a delicate balance of beneficial and pathogenic bacteria in the gastrointestinal tract (GIT). This is influenced by symbiotic and competitive interactions and relationships. The microbial communities will not only protect the GIT but also enhance productivity in the host. The use of probiotics and prebiotics are two approaches that have been examined and can potentially reduce enteric diseases in poultry and also enhance their productivity. These substances have been proposed to assist in the prevention of carcass contamination and improve the immune response in the chicken. Probiotics have been defined as 'a live microbial feed supplement which beneficially affects the host animal by improving its intestinal balance' (Fuller, 1989). The probiotic mode of action is by 'competitive exclusion', meaning there is competition for attachment sites in the GIT.
INTRODUCTION Tight junctional complexes comprise a key component of the intestinal barrier by sealing the apical surfaces of adjacent epithelial cells. “Leaky” tight junctions provide paracellular portals through which pathogenic bacteria can cross the gastrointestinal epithelium and ultimately enter the systemic arterial circulation. This process of bacterial leakage across the intestinal epithelial barrier, known as bacterial translocation, can lead to the...
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Fatty liver hemorrhagic syndrome in poultry. Plusvet Animal Heath presents the summary of causes of the disease, control and solutions, in one minute....
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The villi of the intestinal mucosa are lined by a single layer of columnar cells, comprising enterocytes, goblet and enteroendocrine cells, and various types of immune cells, each with a distinct function. Chicken gut mucosa is exposed to an enormous number of feed antigens, and pathogenic bacteria that often impair the intestinal barrier function. Ultrastructural examination of enterocytes, their organelles and other features, such as mitochondria, microvilli, and tight junctions sealing...
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INTRODUCTION Antimicrobial resistance is a major threat to human health (1). Host-directed therapy has emerged as a promising antibiotic-free strategy for disease control and prevention (2, 3). Host defense peptides (HDPs), also known as antimicrobial peptides, are small molecules of the innate immune system featuring antimicrobial and immunomodulatory properties (4, 5). Inducing HDP synthesis is a host-directed antimicrobial therapy that is being actively explored for human and...
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Dietary starch influences growth performance, nutrient utilisation and digestive dynamics of protein and amino acids in broiler chickens offered low-protein diets
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Background Maintaining and improving gut health is fundamentally important as the gut supports optimal digestion and therefore performance and profitability of production. Managing gut health through barrier function is regarded as a new frontier for disease prevention across different species [1]. In poultry, considerable research has been done on improving animal performance and gut health through various nutritional approaches. However, few objective measures have been...
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Hankkija’s yeast hydrolysate Progut® is a natural solution for antibiotic free production systems. Yeast activated by our unique hydrolysis does excellent job in pathogen binding, modulating immunity, and improving feed efficiency. The efficacy of both products belonging to the Progut® family has been proven both scientifically and in field. ...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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INTRODUCTION Eimeria spp. are the etiologic agents of avian coccidiosis, an intestinal disease responsible for an economic loss of more than $3 billion per year (1, 2). Increasing implementation of antibioticfree poultry production system in the U.S. is making the control of some enteric pathogens such as coccidiosis-causing Eimeria species and necrotic enteritis-inducing Clostridium perfringens strains challenging (3). Because coccidiosis is a primary risk...
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Sometimes chicken flocks resulted in less livability and body weight at seven days of age than other ones without knowing the reason. Besides, this reduced performance at an early age has a carryover effect until the market age. What was the cause? Probably, the lower broiler performance is mostly related to the quality of the chicks that arrive at the farms. Indeed, the broiler breeders, incubation process, or in-ovo feeding impact on chick quality. The eggshell temperature, brooding...
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I. INTRODUCTION Phytogenics and probiotics are gaining more attention in the animal industries due to market trends to reduce antibiotics use, whilst still preventing disease outbreaks and maintaining, or even improving, animal performance. Phytogenics have been shown to inhibit non-beneficial, potentially pathogenic bacteria such as E. coli (Ouwehand et al., 2010, Bento et al., 2013), positively influencing the gut microbiome and inhibiting C....
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Progut® Extra is a refined version of our yeast hydrolysate Progut® produced by stronger hydrolysis which results in a higher content of soluble bioactive structures and thus enhanced biological responses. This gives a possibility to reduce the inclusion rates and makes the product especially suitable for challenging conditions and for ruminant applications....
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Updated Vitamin Requirements Across Species: Microvit® Nutrition Guide
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In the past few decades in South East Asia (SEA), with a moderate increase in the layer hen population, egg production rate and lifespan have greatly improved. However, when compared with the global egg production per capita (less than 7 vs. more than 10), there is still a significant opportunity to further increase egg production in this area. In SEA, the top challenges for the layer industry are egg quality and egg production rate, especially for old flocks. In old layers, especially after...
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Introduction Animals used for food production have been genetically selected for feed intake and muscle development (or milk and egg production) and are therefore divergent from their ancestors. In addition, these animals are reared in conditions that favor fast spread of pathogens. The high uptake of feed and the fast growth make these animals prone to intestinal disorders, what has been neglected in the past because of the use of low doses of...
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Guillermo Tellez (University of Arkansas) presented published results conducted on a Bacillus direct-fed microbial to increase performance, during the 8th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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Yeast products certainly have a role in supporting the performance and gut health of animals but choosing the right one can be tricky as there are plenty of products with similar claims. The yeast product manufacturers naturally emphasize those characteristics in...
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During COVID19 pandemic period, people all over the globe have understood the importance of protein consumption to boost up their immunity. Chicken meat and eggs provide a rich source of protein and known for the high digestible values which contains vitamins and minerals needed for improving overall health and immunity. It is estimated that 25% of the world's meat supply is derived from poultry, i.e. chicken, turkey, duck, geese, domesticated quail, etc. and increasing trend...
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Mycotoxins semiannual survey of mycotoxin in feed in 2023 Taiwan - Second Half
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INTRODUCTION Coccidiosis is a major enteric disease of chickens that is caused by several distinct species of Eimeria protozoan parasites infecting different areas of the gut. Coccidiosis primarily damages epithelial integrity in the intestine decreasing nutrient utilization and resulting in an annual loss of over $3.2 billion in the poultry industry globally (1–3). With the onset of coccidiosis, Eimeria elicits a local inflammatory response in the intestine, increasing...
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Advanced nutritional feed strategies will play an ever-increasing role in enabling poultry producers to transition away from widespread antibiotic use. Phileo’s comprehensive post-antibiotic program provides the nutritional tools in the form...
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The production of pelleted feed is a complex and expensive activity. Optimising the manufacturing process is therefore important to maintain production profitability, making it necessary to collect all relevant data along the processing...
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What is germination? Do all probiotics have to germinate to become active? Where exactly in the digestive tract must germination take place to provide benefits for animals? Are we sure that all Bacillus-based probiotics germinate in the gut of birds? Karoline SIDELMANN BRINCH, DVM, PhD, Science Manager at Novozymes Applied Research, Animal Health and Nutrition, and Damien PRÉVÉRAUD, PhD, Global Technical and Scientific Manager of Health by Nutrition at Adisseo answer these questions....
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