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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.
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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Innovative Directions in Aflatoxin Testing Point to Measureable Gains in Quality Of Lab Data
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Once germinated, how does Alterion® work? What is the link between germination and the beneficial effects of Alterion® on animals? Damien PRÉVÉRAUD, PhD, Global Technical and Scientific Manager Health by Nutrition at Adisseo, answers all your questions....
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Currently, the animal feeding practice includes prophylactic approaches for supporting intestinal health and immunity to reduce the incidences of dysbiosis, diseases, and the need for antimicrobial medication. The antibiotics kill the pathogen or restrict their multiplication to control the infection from advancing in the host. As per the report of the World Health Organization, the increased and inappropriate use of antibiotics leads to the development of antibiotic-resistant bacteria (WHO...
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Effects of <i>Ganoderma lucidum</i> fermentative products supplementation on growth performances, carcass characteristics and immune response in Native Chickens
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Maintaining a healthy poultry gut and immune system is an essential but controllable factor which can directly influence efficient feed conversion. Several studies have demonstrated that a selected yeast postbiotic promotes a healthy gut thus...
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Poultry producers need support to overcome the challenges posed by reducing the use of antibiotics. Phileo has constructed a post-antibiotic program founded on four pillars of quality poultry production: farm management, nutrition, immunity, and gut health. These...
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INTRODUCTION The continued use of antibiotics in feed has led to the emergence of antibiotic-resistant pathogenic organisms, which is a major concern in the poultry industry (Diarra et al., 2007; Garcia-Migura et al., 2014; Roth et al., 2019). Therefore, the use of in-feed antibiotics has been reduced, and the identification of alternative strategies to antibiotics has become a primary research focus. Comparisons of alternatives to antibiotics on gastrointestinal health, shown...
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The Role of Amino Acids in the Immune System – A special focus on broilers.
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in this Interview, Alamanda Calvert, Research Manager, Poultry Specialist at Biomatrix International, points out the results of some field trials in birds using a multifaceted blend of natural ingredients allowing animals to effectively manage feed efficiency and overall growth.
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Despite successful Salmonella control measures implemented in food-animal production, salmonellosis remains one of the most frequently occurring food-borne zoonoses worldwide, with poultry and poultry products as the main transmission vector. In general, about...
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Jonathan Cade comments on his new role as Chairman of the U.S. Poultry & Egg Association
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Supplementing poultry diets with xylanase partially depolymerizes the xylans present in the dietary cereals, reducing the number of sugars in the molecular chains. The resulting oligosaccharides can be selectively fermented by beneficial intestinal bacteria, resulting in improved nutrient utilization (De Maesschalck et al., 2015). The study aim was to investigate the production of xylo-oligosaccharides (XOS) in different batches of Australian wheat, in the presence or absence of xylanase....
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1. Introduction A previous study reported nontyphoidal Salmonella spp., Clostridium perfringens, Campylobacter spp., and Escherichia coli as some of the most important foodborne bacterial pathogens in the U.S. [1]. Overall, health-related cost associated with the food borne illness from those pathogens was estimated to be around $51.0 and $77.7 billion based on a basic and enhanced model, respectively, as described earlier [1,2]. S. enterica serotype Enteritidis (SE) that...
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INTRODUCTION The Centers for Disease Control and Prevention has estimated there are approximately 48 million cases of foodborne illness in the United States annually (Elaine et al., 2011a, 2011b). Salmonella and Campylobacter are the most frequently reported bacterial causes of poultry-related foodborne illness (Heyndrickx et al., 2002; Mead, 2002) because of their association with the gastrointestinal (GI) tract of chickens...
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The poultry probiotic ingredients market is poised for robust growth on the back of burgeoning demand for safe and natural growth promotors for poultry. Over the years, the demand for poultry ingredients has increased significantly due to the growing inclination towards cost-effective and natural feed additives.
The product has gained significant prominence in the poultry arena as a feed additive on account of its ability to improve immunity against pathogens and maintain proper...
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I. INTRODUCTION The withdrawal of antibiotics has caused an increased prevalence of necrotic enteritis (NE) in broiler chickens, making it the most common disease in the poultry-industry globally. Direct fed microbials (DFMs) have been shown to have great potential as alternatives to antibiotic growth promoters (AGPs). Bacillus amyloliquefaciens produces several extracellular enzymes including cellulase, hemicellulose, amylase, xylanase and proteases. Its application has been...
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Both essential oil and organic acid have been demonstrated to improve growth performance and gut health of broilers. With their different mechanism of action, it is hypothesized that combining them could provide additional benefits. A floor pen study with 1728 day-old male broilers was conducted to evaluate an essential oil blend (EOB, NEXT ENHANCE® 150, 1:1 thymol carvacrol) and an organic acid blend (OAB, AVIMATRIX®,...
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I. INTRODUCTION Salmonella serovars can invade the host by inducing their own uptake into intestinal epithelial cells. This uptake is induced by virulence proteins delivered into cytoplasm of infected cells by a specialized mechanism known as type III protein secretion system (TTSS) (Bertelsen et al., 2003). These proteins activate signaling pathways involved in cytoskeleton rearrangements and cellular uptake processes (Galán and Zhou, 2000). Besides facilitating...
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I. INTRODUCTION Antibiotics as growth promoters (AGPs) have been extensively used at sub-therapeutic levels in poultry production to prevent diseases and promote growth performance. However, the persistent use of antibiotics can increase antibiotic-resistant bacteria and antibiotic residue accumulation in the animal products as well as potentially transferring resistant strains to humans through the food chain (Jazi et al., 2018a). Consequently, the poultry industry has been...
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Innovative Directions in Aflatoxin Testing Point to Measureable Gains in Quality Of Lab Data
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Thanks to our excellent speakers Prof. Dr. Richard Ducatelle from Ghent University and Dr. Juha Apajalahti from Research Centre Alimetrics the webinar organized on the 20th of April has proved a success. We’ve learnt a lot about the...
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The use of Bacillus species as probiotic supplements is expanding rapidly and these products demonstrate immune stimulation, antimicrobial activities, enzyme production and competitive exclusion as the most prevalent modes of action (Grant et al., 2018; Hmani et. al., 2017; Reis et al., 2017).
The objective of this study was to evaluate the effect of a multi-strain Bacillus-based directly fed microbial (DFM) and its three single strains on performance of broilers challenged with a...
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