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Starch is the most abundant source of energy in broiler diets, providing about 50 % of apparent metabolisable energy. Broiler diets generally contain approximately 40 % starch, which is thought to be completely digested within the small intestine. However, the microbiota in the large intestine also plays an important role in starch digestion, producing volatile fatty acids that act as an energy source. The potential consequence of this is an incorrect prediction of the digestible energy...
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I. INTRODUCTION Globally, maize and wheat are the major cereal grains used in broiler feed. Maize is predominant in Asia and the Americas, whereas wheat is in Australia, New Zealand and Europe. Extensive research has been undertaken in refining dietary strategies to optimise broiler performance when offered reduced crude protein (CP) diets. In feed, these grains have been optimized by the inclusion of feed enzymes and unbound (crystalline or synthetic) amino acids. Reduced CP...
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(Mandarin) Strengthening Pellets for Better Feed Performance
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AMES, Iowa — Researchers in the Department of Food Science and Human Nutrition at Iowa State University have discovered an innovative approach to fight bacteria and their antimicrobial resistance in poultry by exploiting linkages between the gut neurochemical and immune systems.
Poultry products are the primary vehicle for exposure to the foodborne disease, Salmonella, in the United States. More than 1 million infections represent approximately $400 million in costs each year....
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Dietary protease supplementation has been observed to improve broiler growth performance and amino acid digestibility (Angel et al., 2011; Fru-Nji et al., 2011). Improvements in broiler energy utilisation have also been observed with supplemental protease (Sorbara, 2009; Freitas et al., 2011). These positive extra-proteinaceous effects may be influenced by age and diet type. In addition, these effects may vary throughout the broiler small intestine. Therefore, an experiment was conducted to...
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Soybean meal (SBM) and canola meal (CM) are the main contributors to the protein fraction in poultry diets worldwide. However, these quality vegetable protein meals contain low molecular weight sugars (raffinose and stachyose) and cell wall pectic non-starch polysaccharides (NSPs), cellulose and hemicellulose (e.g. xyloglucans and mannans) which can be problematic. These NSPs are notorious for their water-holding capacity, increasing viscosity in the small intestine, impairing nutrient...
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INTRODUCTION Inflammation is an important, highly conserved, innate immune system response. In birds, like in mammals, the inflammatory response is activated by various pathogen- or damage-associated molecular patterns through their interaction with cellular and soluble pattern-recognition receptors (Juul-Madsen et al., 2014; Kaspers and Kaiser, 2014; Abbas et al., 2018). For example, lipopolysaccharide (LPS; endotoxin), a cell wall component of gram-negative bacteria, is a...
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I. INTRODUCTION Knowledge on the digestibility of amino acids (AA) in raw materials is crucial for precise feed formulation, and for more efficient and sustainable use of feed resources. The accuracy of excreta-based digestibility measurements for determining N and AA digestibility may be questionable, due to the variable effects of the caecal microflora on dietary protein utilisation and the contribution of...
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INTRODUCTION The intense international trade of animals and animal products facilitates the spread of Salmonella spp., making salmonellosis an international public-health subject, responsible for serious economic losses to the poultry industry and governments. Although humans can become infected by Salmonella spp. through a wide range of food products, poultry meat and eggs are among the most frequently implicated sources of human Salmonella outbreaks (Gast, 2013)....
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INTRODUCTION Necrotic enteritis (NE), caused by Clostridium perfringens, is one of the most economically significant enteric diseases in poultry, resulting in an annual loss of approximately $6 billion to the global poultry industry (Wade and Keyburn, 2015). NE is manifested by lesions throughout the small intestine and associated with growth retardation, reduced feed efficiency, and up to 50% mortality (Shojadoost et al., 2012; Wade and Keyburn, 2015). NE is a...
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Introduction The gastrointestinal (GI) tract of humans and animals is populated with a diverse group of microbes known as the microbiota that include bacteria, fungi, archaea, protists, and viruses, with bacteria being the most predominant [1, 2]. The bacterial microbiota is well known to be critically involved in host physiology and immune development [1, 2]; however, the role of the fungal community, known as the mycobiota, that plays in health and diseases is less studied and...
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Introduction In poultry, the gastrointestinal tract accounts for twenty percent of the energy expenditure of the whole body (Choct, 2009). This energy requirement is variable and dependent on numerous factors influencing the highly dynamic nature of the intestinal environment. The intestinal environment including the mucosal structure and function is influenced by many factors including environmental management, embryonic incubation, dietary ingredients, protein level,...
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All-in-one mycotoxin extraction method for faster time-to-results - Myco 5-in-1 PLUS
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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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Introduction Nowadays, food is eaten to satisfy hunger, to provide the necessary nutrients to us humans and also to prevent nutrition-related illnesses in order to improve physical and mental well-being (SIRÓ et al., 2008). However, human nutrition has been characterized by excessive intake of sodium, cholesterol, omega-6 fatty acids and calories, and by low intake of omega-3 fatty acids, fibers, vitamins, antioxidants and trace minerals. These dietary and nutritional...
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Introduction Barley ranks fourth in global cereal production after corn, wheat and rice. About 65% of the world’s barley produced is fed to animals, including poultry. Australia is a significant global producer of barley, ranking in the top five countries with about 5% of global production and is among the top three barley exporters accounting for about 30% of malt and 20% of feed barley trade. Australia is a reliable supplier of two row...
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Nancy Zabe Collette, Technical Services and Applications Manager at Vicam Waters, points out the main problems caused by mycotoxins in the feed, the benefits of VICAM immunoaffinity column products, and more in this interview
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Introduction Protein besides biologically active compound in the body exists as enzymes & hormones, also plays important role in physiology of living organisms. Soybean meal (SBM) is complete conventional protein source with well-balanced amino acids profile. On the other hand due to increase in prices of SBM, alternative sources like groundnut cake, sunflower meal, guar meal, rapeseed cake, cotton seed cake, copra meal, maize gluten, DDGS etc. are used, but they have...
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Highlights • A total of 5.5% (8/144) of the examined chicken samples were contaminated with MRSA. • Most MRSA isolates (75%, 6/8) harboured the staphylococcal enterotoxin B (seb) gene. • Ø MRSA isolates initiated SEB production in experimentally contaminated chicken livers within 24 h of storage at > 8 °C. •SEB was maximally produced at 24 °C when the MRSA counts reached 7.3x10 3 ± 1.2x10 3 CFU/g...
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(Mandarin) Strengthening Pellets for Better Feed Performance
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I. INTRODUCTION Interactions among the branched-chain amino acids (BCAA) have long been observed in poultry (D’Mello and Lewis, 1970; Tuttle and Balloun, 1976; Mendonca and Jensen, 1989), but their effects on broiler performance have been contested with various researchers reporting no effects of BCAA interactions on broiler performance in practical diets (Burnham et al., 1992; Barbour and Latshaw, 1992; Waldroup et al., 2002)....
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I. INTRODUCTION Antibiotic growth promoters have been successfully utilized in the past to control gut dysbiosis (Dibner and Richards, 2005). However, poultry production is changing because of consumer and governmental pressure to reduce the use of antibiotics (Cervantes, 2015). Little or no attention is given by nutritionists to understanding the fibre composition in poultry diets and their role in gut health...
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