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Amino acids in poultry nutrition
Adequate provision of dietary amino acids is required to maintain normal immunocompetence and protection of the host from some diseases in all species (Beski et al. 2015). Therefore, the development of immune function in poultry will be promoted if they receive sufficient amino acids in their diets. The essential amino acids for poultry are arginine, glycine, histidine, leucine, isoleucine, lysine, methionine, cystine, phenylalanine, threonine, tryptophan, and valine. Out of these, the ones critical in practical diets are arginine, lysine, methionine, cystine and tryptophan.
Introduction Chronic heat stress (HS) is a great concern in all types of poultry especially broiler chickens. Reductions of feed intake (Teeter ., 1985) and lower growth rate as well as reduction in feed efficiency (Geraert ., 1996) have been reported in poultry under HS condition (Ramnath., 2008). Birds attempt to compensate for their reduced ability to dissipate heat during heat distress by increasing their physiological processes (such as, elevated body temperature, panting...
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Peter Chrystal (Baiada) gave a presentation on different tests, models and tools to better analyze feed formulation and poultry nutrition, during the Latin American Poultry Congress in Lima, Peru....
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Introduction Quail farming is very important for providing jobs and producing high quality protein at a low cost. Nutrition during the growing phase of the birds can influence their performance during the production phase. Most research has focused on the nutritional requirements of quails during the laying phase and there is little information about requirements during the growing phase. Quails are characterized by early sexual maturity (40 days), demanding feeding programs...
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Todd Applegate, Head of Poultry Science Department at the University of Georgia, talked about the advances that the poultry industry has had in understanding probiotics and their effect. Also, Applegate went over his researches on amino acids and mycotoxins, during IPPE 2017 in Atlanta, USA....
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INTRODUCTION One of the most important roles of animal production is to provide high quality protein for human consumption and, to achieve this proposal, animals should be fed correct proportions of high quality protein in the diets. Amino acids are key factors in animal nutrition since protocols used to evaluate protein quality are related to amino acid supply. Poultry feed formulation was until recently based on the concept of crude protein, which frequently resulted in...
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Alex Corzo (Aviagen) gave a presentation that touched on very important subjects such as broiler nutrient requirements and environmental impact, during the Multi-State Poultry Feeding and Nutrition Conference in Indianapolis, USA....
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INTRODUCTION There is increasing evidence that cereal grains used for poultry feed are commonly contaminated with mycotoxins. Mycotoxins are toxic compounds produced by fungi, when present in the feed depress nutrient quality of the feed and hence the health and performance of poultry. The tropical and subtropical climate with hot and humid condition prevailing in India coupled with poor harvesting of crops, inadequate drying and storage facilities, and insect infestation...
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Effect of <i>Bacillus</i>-based probiotics on improving the intestinal health and performance under enteritis challenge in broiler chickens
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INTRODUCTION Aflatoxin is the common name for a group of chemically related compounds (Moss, 1996) produced by certain strains of Aspergillus flavus and A. parasiticus in the feedstuffs as poisonous secondary metabolites. Aflatoxins are stable once formed in grain and are not degraded during normal milling and storage process (Brown, 1996) and have been demonstrated to be carcinogenic, mutagenic and teratogenic (Cole and Cox, 1981). It impairs humoral and cellular immune...
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Evonik, the company with a lot to share at PSA 2019
Presenting record 14 abstracts
Hosting the Amino Acids Symposium
Evonik will present 14 scientific abstracts at the Poultry Science Association (PSA) conference as it looks to share its scientific expertise and develop sustainable solutions to the challenge of feeding the growing global population.
This is a record number of accepted submissions for...
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Key information Compared to growing poultry, exact determination of the relative bioavailability of methionine hydroxy analogue compared to MetAMINO ® is constrained by physiological mechanisms in laying hens which often result in overestimation of the relative bioavailability. The relative bioavailability of 65 % for methionine hydroxy analogue is applicable in layers and bears no risk in terms of performance depression, as confirmed by three recent feeding...
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Pedro Castelo, Business Manager at Evonik Animal Nutrition in Brazil, points out the benefits of PROXYMet™, designed to confirm the superior nutritional value of MetAMINO® versus methionine hydroxy analog., during the Simpósio Brasil Sul de Avicultura 2019...
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40 Years of Success in China with Hy-Line (Mandarin-language video)
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Victor Naranjo, Technical Manager LATAM at Evonik Animal Nutrition, discussed some of the advantages of using supplemental amino acids in broiler nutrition, highlighting the main points of his conference at the Evonik Spanish Seminar during IPPE 2019....
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Mike Persia (Virginia Tech) discussed the positive effect of this enzyme on different doses and the environmental impact, during IPPE 2019 in Atlanta, USA....
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Introduction Broilers diets are usually based on corn and soybean meal; in most cases, animal by-products are also used as raw material. Considering that the main source of crude protein in broiler diets is soybean meal, the first limiting amino acid for broilers is methionine, which has to be supplemented in the feed from industrial sources available on the market (Lemme et al., 2002). The most common sources of methionine in the supplements available to the poultry...
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Edgar Oviedo (NC State University) explained the findings in this research and future studies on the subject, during IPPE 2019 in Atlanta, USA....
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Introduction The inclusion of exogenous enzymes in broiler diets has been increasingly intensified with the objective of maximizing nutrient utilization and reducing feed costs, thus improving dietary, nutritional and energy levels (Adeola & Cowieson, 2011). Exogenous enzymes improve the nutritional value of feed ingredients due to the degradation of specific bonds not efficiently hydrolyzed by the endogenous digestive enzymes of birds and to the degradation of...
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Introduction The issue of antibiotics-resistance on animals has raised the concerns of meat safety and human health. The banning of antibiotics- growth promoter in animal feed was announced in EU in 2006. Other countries are starting to follow the regulation to comply with the compulsory withdrawal periods to ensure ‘antibiotics-free’ products. During the ‘antibiotics withdrawal periods’ of livestock, though biosecurity and vaccination program of poultry...
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Abstract
A battery study was conducted to evaluate the efficacy of phytase superdosing in improving growth performance, pancreatic response, and nutrient digestibility of broilers with a high trypsin inhibitor model. There were 5 dietary treatments: positive control (PC), negative control 1 (NC1), NC1+ 1500 U/kg phytase, negative control 2 (NC2), and NC2 + 1500 U/kg phytase. In NC1 and NC2, the SBM was substituted with full fat extruded soybeans to target the trypsin...
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Conclusion The present study conducted at Schothorst Feed Research resulted in an average bioavailability of MHA-FA and diluted DLM65 of 65% and 61%, respectively compared to MetAMINO® considering the overall growth and carcass parameters. These results demonstrate that the relative bioavailability of MHA-FA is significantly lower than its active content of 88% and consistent with the 2018 EFSA scientific opinion of 66% on product basis (75% on equimolar...
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