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Energy in poultry diets
While protein, vitamins and minerals are referred to as nutrients, energy -the 4th and most costly part of the diet- is not a nutrient but the property of energy yielding nutrients. Dietary nutrients that yield energy are protein, fat and carbohydrates. Dietary energy level is the main factor influencing feed intake, as birds will, under normal circumstances, eat to satisfy their energy needs. Therefore the dietary nutrients, protein vitamins and minerals should vary in relation to the dietary energy content of the diet, if they are not to become deficient, with low feed intakes, or overconsumed, with low energy diets. While there are a number of factors, such as level of protein, balance of essential amino acids and perhaps level of some of the other dietary nutrients, that can influence the cost of a diet, the level of dietary energy is usually the main factor influencing diet cost.
Nelson Ruiz (Nelson Ruiz Nutrition LLC) speaks on his research presented at the IPSF regarding the evaluation of soybean meal with KOH protein solubility and trypsin inhibitor as the main measurements, in this Engormix interview during IPPE 2024 in Atlanta, USA....
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Nelson Ruiz (Nelson Ruiz Nutrition LLC) explains how to deal with both cases and offers his insights and recommendations, in this Engormix interview during IPPE 2024 in Atlanta, USA....
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Effectiveness of Bacillus licheniformis-Fermented Products and Their Derived Antimicrobial Lipopeptides in Controlling Coccidiosis in Broilers (Extract)
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Julián Melo (Universidad Nacional de Luján / Dietaxion) In a context of rising prices of feed ingredients, the improvement of the overall feed digestibility and maximum utilization of nutrients in the feedstuffs should be a priority. Previous studies have shown the benefit of a double-buffered sodium butyrate (DBSB) on the performance and intestinal health of broilers fed low energy and protein diets (LEP). The aim of the study was to...
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Julián Melo (Universidad Nacional de Luján / Dietaxion) explains the characteristics and benefits of a double-buffered sodium butyrate presented in his research, during this interview at IPPE in Atlanta, USA....
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I. INTRODUCTION Nutrient requirements are established by means of dose-response studies. Data is subjected to appropriate regression analysis and the level needed to maximise a given response (body weight gain, feed efficiency, carcass yield, etc.,) is defined as ‘requirement’. The estimates are compiled as ‘tables of nutrient requirement’ e.g., NRC, CVB, Brazilian Tables, nutrition guides by the genetic suppliers, and are used by field nutritionists as...
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I. INTRODUCTION In the 1990s, researchers from the American Soybean Association (ASA) showed that soybean meal with similar proximate analysis can perform very differently in poultry and swine feeding. Subsequently, Creswell and Swick (2008) carried out feeding trials, AME and digestible amino acid analysis of 4 soybean meals. They found that there was a large difference between the soybean meals in BWG and FCR from the broiler feeding trials as well as in AME and digestible lysine....
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I. INTRODUCTION In Australia, the cost of tallow and vegetable oil has more than doubled over the past two years (www.finvis.com), prompting broiler nutritionists to re-evaluate dietary energy content for meat-type chickens. Globally, a wide range of lipids with diverse chemical composition, are routinely included in poultry feed including soapstocks or acid oil, crude vegetable oil, hydrogenated material, recycled vegetable oil, restaurant grease, animal tallows and even products...
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I. INTRODUCTION Modern broilers grow quickly because they have tremendous genetic potential due to intensive selection for increased growth rate and efficiency (Zuidhof et al., 2014). The parents, broiler breeders, carry this genetic potential and when fed ad libitum, easily become overweight (Heck et al., 2004), compromising reproductive performance (Renema and Robinson, 2004; Chen et al., 2006) and reducing welfare (Mench, 2002). Thus, broiler breeder hens are typically feed...
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I. INTRODUCTION Mannan is a plant based-NSP derived from polymerisation of mannose sugars, it is categorised as galactomannan or glucomannan based on the presence of galactose and glucose side chains (Aspinall, 1973). Generally, galactomannan is the dominant form in legumes (Sundu et al., 2012). The ratio between mannose to galactose dictates the water solubility of galactomannan where galactose has a strong capacity to bind water and increase gut viscosity. The β-mannan in...
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I. INTRODUCTION Cereal grains such as wheat, sorghum, barley and maize are commonly used in poultry diets as the main source of energy. Knowledge on the metabolisable energy content of cereal grains is critical for their efficient use and precise poultry feed formulation. Despite several limitations (Mateos et al., 2019; Wu et al., 2020), the AME has been the globally accepted system for describing the dietary energy content for poultry. Modern, commercial broiler...
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40 Years of Success in China with Hy-Line (Mandarin-language video)
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I.INTRODUCTION A high degree of volatility with regard to the pricing and supply of inputs has arisen. This situation began with the COVID-19 pandemic and the negative effect it had on the global supply chain, and has been exacerbated by the Russian-Ukrainian war. This state of affairs will likely persist until at least the end of 2023 (Mulder, 2022). It has given rise to the intermittent non-availability of several essential feed ingredients. Coupled with these short- to medium-term...
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I. Introduction Grains are the major energy sources in broiler diets. However, they also supply about 40% of the total dietary protein and contribute significantly to the provision of some indispensable amino acids (IAA; Szczurek et al., 2020). Despite the low protein content in maize, owing to its higher inclusion levels (50-70%) it may contribute approximately up to one third of the protein requirement of broilers. The inclusion of barley in poultry diets remains limited because of...
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Practical AMINONIR® Application: From sampling to economic benefits
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Kostas Mountzouris (Agricultural University of Athens) A deeper understanding of critical bird homeostasis responses may augment poultry industry efforts for improved bird resilience and production sustainability. The aim of this work was to explore the expression range of critical genes in the broiler gut as responses to diverse dietary inputs. The gene transcripts studied were grouped based on their functional role under functional indices, termed...
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Kostas Mountzouris (Agricultural University of Athens) shares his research on modeling responses through molecular analytical data, linked to animal homeostasis, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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Kostas Mountzouris (Agricultural University of Athens) offers insights on gut homeostasis modulation through metabolizable energy, crude protein and phytogenics, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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INTRODUCTION Corn and soybean meal are ingredients that have a good digestibility, however depending on the storage, crop and variety, these ingredients may have a change in their nutritional quality. For broilers, these ingredients constitute around 70 and 30% of the diet, respectively. Thus, any small improvement in their quality significantly influences the performance of the broiler chickens and the meat production cost. The carbohydrate fraction of cereal ingredients has...
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INTRODUCTION Providing adequate quantities of animal protein to meet the demands of a continuously growing population requires that livestock producers must increase the production efficiency of farm animals. This can be achieved through improved genetics, management, and nutrition. Furthermore, feed ingredient prices continue to increase, resulting in minimizing the profit for the producers and forcing them to seek cheaper alternative ingredients, typically of lower quality and...
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An experiment was conducted to assess the potential for guanidinoacetic acid (GAA) to spare dietary energy and influence muscle myopathies when included in broiler diets. A total of 1,056 male Ross 708 broiler chicks were randomly assigned to 48 floor pens with 22 chicks per pen. Broilers were fed one of four experimental diets and reared to 50 days of age. Dietary treatments consisted of a control (T1), T2 (T1 – 110 kcal/kg apparent MEn), T3 (T2 + 0.08% GAA), and T4 (T1 – 55...
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Effectiveness of Bacillus licheniformis-Fermented Products and Their Derived Antimicrobial Lipopeptides in Controlling Coccidiosis in Broilers (Extract)
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Craig Coon (University of Arkansas) shares his knowledge regarding this subject, focusing on energy, proteins and amino acids, as well as the advances made in the industry throughout the years, in this interview during IPPE 2023 in Atlanta, USA....
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1 | INTRODUCTION Due to the impact of climatic changes and other global events such as conflict, the Covid‐19 pandemic, recession, and supply chain issues, conventional feed ingredient prices are continually increasing. The effect of these constraints is felt largely in developing countries that are coming under huge pressure to source raw materials such as corn and soybean meal (Abro et al., 2020). The search for alternative feed ingredients to sustain the livestock...
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