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Enzymes in poultry nutrition
Enzymes are proteins involved in all anabolic and catabolic pathways of digestion and metabolism. Digestive enzymes are categorised as endogenous or exogenous. Endogenous enzymes are produced by the animal and exogenous enzymes are administered from outside. Enzyme supplementation decreases nutrient loss through excreta, reduces diets nutritional levels, improves nutrient availability; thus, enhances production efficiency and profitability. In addition, exogenous enzymes hydrolyse non-starch polysaccharides, increase the usage of feed energy, reduce negative impacts of non-digestive residues on digesta viscosity, and improve gut microbial ecosystem. Cellulase, glucanase, pectinase, xylanase, galactisidases, phytase, non-starch polysaccharides degrading enzymes, amylase, lipase, cellulase, and protease are the most common enzymes used in poultry feed.
Robert Alber, Vice President of Animal Nutrition at AlzChem, introduces Creamino®. Creatine is a natural molecule in the organism of humans and animals that elevates creatine stores in the body, supplies energy, and brings multiples benefits to poultry nutrition...
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INTRODUCTION The suggested BW of broilers (ROSS 308) will increase 50- to 55-fold at the age of 35 d as compared with the day-old chick weight (Aviagen, 2019a). Correct supplementation of dietary amino acids is crucial to support the exponential growth of broilers. Methionine (Met) is the first limiting amino acid in broilers; thus, meeting the requirements of Met plus cystine is crucial. The...
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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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Administration of yeast fraction reduces outcome of Salmonella Typhimurium challenge on broilers
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I. INTRODUCTION The optimum utilization of nutrients, especially energy and protein, by poultry is essential in commercial production. The efficiency of feed utilization has been improved through genetic development (Rege 1994), alongside feed processing and use of feed additives, especially microbial enzymes. Energy utilization in poultry can be measured by assessing metabolizable energy or net energy, which may be for production (NEp) or for maintenance (NEm). The NEp is...
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Introduction: NSPase enzymes have become an integral part of commercial poultry feed for enhancing the efficiency of nutrient utilization by the birds, thereby reducing the cost of production and improving growth performance. The supplementation of phytase in broiler diets is also standard practice due to its proven performance and relatively low cost. Few studies have reported the contribution of xylanase in diets containing phytase. This study's primary objective was...
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Innovative Directions in Aflatoxin Testing Point to Measureable Gains in Quality Of Lab Data
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Accurate estimation of the broiler’s lysine (Lys) requirement is vital because it is the second limiting amino acid (AA) in poultry diets and, when the ideal protein ratio concept is applied, the essential amino acids (EAA) are expressed as ratios to Lys. It is necessary to regularly update AA requirements for modern broiler chickens in order to accommodate their genetic progress. However, defining a nutrient requirement is difficult because of variations in age and sex of animals and...
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Dietary energy is vital in animal nutrition as it is a major cost component in animal diets. Dietary fat and oil contribute high levels of energy into the diet, and different fat types affect growth performance of fast growing broiler chickens (Meng et al., 2004). Furthermore, decreased fat digestion and absorption were reported in young broiler chickens (Al-Marzooqi and Leeson, 2000). Addition of emulsifier and multi-carbohydrase resulted in improved energy availability and growth...
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APIs and Vitamin MARKET - The weak demand for the APIs
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1 Introduction Amino acids (AAs) are the building blocks of protein, which is the major dry matter component of growth in chickens and their eggs (Baker 2009). As foods for humans, poultry and eggs provide high-quality protein that contains sufficient amounts and proper ratios of AAs, therefore playing an important role in the growth, development, and health of humans (McNeill et al. 2017; Réhault-Godbert et al. 2019). Chicken or poultry byproducts are also low-cost...
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Introduction and Objectives Betaine (BET) acts as a methyl donor to convert homocysteine into methionine (MET), sparing both choline (CHOL) and...
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Mohammad Afrouziyeh (University of Alberta) discusses Least Cost Feed formulation and Maximum Profit Feed formulation models, as well as the application of mathematical Linear Programming and Non Linear Programming models that are used in animal nutrition....
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The increased demand to reduce production costs, as well as concerns about the environment, have resulted in pressure on poultry producers to increase dietary energy utilisation and to improve feed efficiency. Usually, technologies such as exogenous enzymes that are supplemented in the diets have been one of the main pathways used to reach these goals. Xylanase is well known to produce positive effects on growth performance of birds fed diets based on non-starch polysaccharide (NPS) rich...
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The influence of inclusion level of barley in wheat-based diets and supplementation of a multicomponent non-starch polysaccharide (NSP) degrading enzyme (Ronozyme® Multigrain) on growth performance and nutrient utilisation in broiler starter (d 0 to d 21) was evaluated. The activities of endo-1,4-β-glucanase, endo-1,3(4)-β-glucanase and endo-1,4-β-xylanase in enzyme were 800 BGU/g, 700 BGU/g and 2700 XU/g, respectively. Normal-starch (non-waxy) hulled barley (NSH) was...
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International Poultry Scientific Forum
ABSTRACT (Poult. Sci 96(E-Suppl. 1) :
In the poultry industry, it is common to utilize various enzymes and other feed additives in poultry feed to accommodate the rising demand for safe and affordable proteins and maintain a balance between production, animal wellness, and environmental stewardship. The...
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I. INTRODUCTION In Tanzania, a majority of the SM farmers use mash diets for feeding broiler chickens, and this has resulted in lower performance. The feed industry in Tanzania is less developed due to lack of analytical facilities, low quality of ingredients and lack of government policy enforcement on feed quality (Geerts 2014). Improving feed quality through physical processing and microbial enzyme supplementation can enhance broiler performance. Feeding pellets improves...
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INTRODUCTION Supplementing poultry feed with specific enzymes improves the nutritional value of feed ingredients by increasing the efficiency of digestion and nutrient uptake. These enzymes help to increase the availability of nutrients particularly starch, protein, amino acids and minerals such as phosphorus and calcium from feed ingredients. Variability in the nutrient content of maize has been demonstrated to be as great as that observed for wheat and barley...
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INTRODUCTION The nonstarch polysaccharide (NSP) portion of corn and soybean meal (SBM) – the 2 primary ingredients in North American poultry feeds – is complex and varies considerably across both ingredients. Exogenous NSP enzymes are supplemented to improve the digestibility of this fiber fraction for which no enzymes are secreted endogenously (Bedford, 1995; Cowieson, 2010; Kiarie et al., 2013). In this regard, diets composed mainly of...
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The apparent metabolisable energy values for feedstuffs are not always constant, and may vary even when feedstuffs is fed to birds of the same type. Digestibility and utilisation of the nutrients in feed ingredients may also be dependent on the strain, age and sex of birds. These differences may be attributable to variations in the endogenous energy losses relative to the excreta energy of feed origin. The age effect in the excretion of uric acid, ammonia and total nitrogen increases...
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The growth graph of the global animal feed enzymes market is expected to display an upward trend in the coming years, due to the increasing preference of the people for nutritious diet along with a considerable rise in the disposable incomes, especially among the developing nations. In a report by the Government of Australia, the global consumption of meat increased to reach 360 million tons in the country by 2018.
With an evident increase in the consumption of animal by-products,...
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