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Feed processing and manufacturing
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Hi, I have a problem with the bulk density of the aquafeed. Recently we take some changes in our production process to increase the quality of the aquafeed. We put steam and water at 80 °C in the pre conditioner, and a 0.5/1.5 of oil. We add 23% of water and 7% of steam We reduce the speed of shaft to increase the retention time. We take also another die with higher open area to have less pressure to the die. The outgoing pellet from the extruder sink, but in the final product we have...
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The 64th National Symposium 2023, came to a close on Saturday, August 19, 2023, after two days of insightful discussions on the agriculture, livestock, and fishery industries. The event, held at Le Meridien, New Delhi, brought together industry experts, government officials, and stakeholders to address key...
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Optimal soybean (SB) processing conditions is essential to ensure that antinutritional factors as trypsin inhibitors are deactivated while maintaining protein solubility and dispersibility. Heat processing is critical for improving amino acid digestibility of extruded SB for broilers. Excessive heat treatment can lead to denaturation of proteins, resulting in a negative impact on animal performance and microbiota composition. In this study, we investigated the effect of three different...
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Dr. Ana Maria Villegas, Technical Services Manager for Gut Health Solutions at Evonik, discusses optimal processing conditions for soybean and its effects on gut health, during this Engormix interview....
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Dave Albin - Vice President, Nutrition & Extrusion Technologies - Insta-Pro International, explains the goal of a feeding study to determine how the use of high-shear dry extrusion with ExPress® soya flour affected the growth of Ross broilers.
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Overview Corn is the most common feed ingredient used in poultry nutrition. Maize contributes with up to 65% of the metabolizable energy and 20% of crude protein in poultry diets (Gehring et al., 2013; Dei, 2017). Its average nutritional value is well-known, but it is accepted that the variability in its composition and energy value is a very common issue with great impact on poultry performance and health (Cowieson, 2005; Gehring et al., 2013; Latham et al., 2016;...
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John Boney (Penn State University) explains how particle size affects poultry nutrition and production costs, during this Engormix interview....
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Raw Materials Traditionally the most popular raw material for production of textured vegetable proteins in an extrusion system has been slightly toasted defatted soy flour. This defatted soy flour usually meets the following characteristics: 50% protein minimum, 3.5% fiber maximum, 1.5% fat maximum and PDI of 60 to 70. Soy flour with these specifications allows controllable production...
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Introduction Near record high feed, fuel, and fertilizer prices, and high inflation rates all have put increasing economic burden on beef producers. The increased cost of feeding cattle means that increasing feed efficiency is critical to feedlot production. Historically, feed costs represent about 70% of the total cost of production for feedlot operators and therefore, feed efficiency has 4 x greater economic return when compared to the same improvement in feedlot growth (Gibb and...
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Introduction Ergot alkaloids (EA) are a group of compounds produced primarily by fungi of the Claviceps and Epichloë spp. Ergot infection has traditionally been associated with grasses and rye, however when conditions are favourable, other important cereals such as wheat, barley, triticale and oats can become infected. The fungus prefers cool, moist conditions during the flowering phase of the host plant and there is evidence that the incidence is increasing. For example, in a...
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Joe Kearns (JPK Consulting) discusses different factors involved in the production of aquafeed, during FIGAP 2022 in Guadalajara, Mexico....
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Introduction The animal feed manufacturing industry’s main purpose is to recombine different flows of nutrients into safe, nutritious, attractive and handleable feeds which are efficiently converted in animal-sourced food products (meat, eggs, milk). The raw materials harboring these nutrients vary greatly in composition and origin. Raw materials may be co-products sourced more locally from food or biofuel industries whereas others may travel large distances on the globe,...
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An experiment was conducted to determine the effects of corn particle size (CPS) on turkey hen performance, intestinal permeability (IP), and litter dry matter. Hybrid turkey hens were housed in floor pens from 0 to 42d. Hens were fed a crumbled starter 1 (0 to 21d) and pelleted starter 2 (22 to 42d) diet. The experiment was a 2 x 2 factorial with diet phase (starter 1 and starter 2) and CPS (fine or coarse), resulting in 4 treatments of 18 replicates of 22 turkeys. Corn was manufactured...
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Mike Persia (Virginia Tech) discusses differences in feeding with fine and coarse particles and their impact on gut health and performance, in this interview during IPPE 2023 in Atlanta, USA....
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Introduction: More than 80% of slaughter pigs in England show epithelial changes at the Pars nonglandularis (PN) of the gastric mucosa. In the interest of animal welfare and to avoid prospective cost deductions, alternative pig feeding strategies must be developed. In this study the effects of a 2-stage coarsely ground compound feed (COF) on performance and stomach health of piglets were tested as compared to a conventional 1-stage produced COF. Materials and...
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Introduction: The castration of male piglets without anesthesia is under public pressure and is already forbidden in some countries. The fattening of boars is an alternative but due to the accumulation of androstenone (A) and skatole (S) in the fatty tissue, resulting in the so called boar taint, some carcasses may be condemned and therefore excluded from human consumption. Skatole is a product of the microbial tryptophan degradation in the hindgut, which can be lowered by feeding raw...
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