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Feed additives
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INTRODUCTION Campylobacter jejuni (CJ) is a Gram-negative commensal pathogen prevalent in the intestinal tract of chickens and other animals. Human infection is characterized by inflammatory bowel response, followed by bloody diarrhea and painful symptoms to the affected people and pets. In addition, Guillain-Barre syndrome can be a secondary sequelae, characterized by a potential fatal autoimmune disorder in humans (Crofts et al., 2018). Moreover, CJ multidrug resistance to...
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1. Introduction Antimicrobial resistance (AMR) is one of the main global threats today, and recent reports estimate that it directly caused 1.27 million deaths in 2019 [1]. In Brazil, the National Health Surveillance Agency, through the Evaluation of National Indicators of Health Care-Related Infections (HAIs) and Microbial Resistance (MR), in the year 2021, estimated that Escherichia coli resistance to different classes of beta-lactams can reach rates of 47.5% to cephalosporins,...
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Rick Kleyn (Consultant at Spesfeed) comments on levels of protein, energy, and phosphorus when formulating poultry diets, in this Engormix interview....
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Introduction Supplemental lipids are commonly included in diets for ruminants (Doreau and Ferlay 1994). These lipids are components of feedstuffs or through the addition of specific lipid additives (Loften et al. 2014). Most commonly, these lipid additives are used to increase the energy density of the diet (Hess et al. 2008), but can also be used to modulate the fatty acid (FA) composition of body tissues or induce metabolic changes. Verdugo (2016)...
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Rick Kleyn (Consultant at Spesfeed) explains the importance of proper management as a first step and how probiotics and enzymes play a role in keeping gut health, in this Engormix interview....
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Introduction: Antibiotics such as tetracyclines have been extensively used in swine production in the last decades. As a consequence, levels of antibiotic resistant bacteria in livestock have increased, which is discussed as major risk for public health. Thus, alternatives to antibiotics are urgently needed to reduce the amounts of antibiotics used in food producing animals. Natural feed additives, such as acids, phytogenics or pre/probiotics, are known to have a positive...
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I. INTRODUCTION Poultry meat is the second-largest meat source with excellent quality of proteins and essential micronutrients for human nutrition globally (Pawar et al., 2016). However, the pursuit of increased meat yield, lean mass ratio and large breast muscle has had significant impacts on meat quality in broilers. Moreover, in modern commercial broiler rearing systems, high stocking density and various stress factors also inevitably lead to impaired growth performance and meat...
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Tri-butyrin is regarded as an ideal molecule to supply both butyrate and mono-butyrin to the small intestine (SI) to maintain intestinal function, modulate the immune response and improve broiler growth performance (Moquet et al., 2016; Moquet et al., 2018). Valerins have been shown to positively affect the morphology of the SI mucosa and reduce the incidence of necrotic enteritis (Onrust et al., 2018). To date, little information is available as to the extent to which valerin and butyrin in...
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Steve Leeson (Professor Emeritus, University of Guelph) comments on the use of amino acids in broiler nutrition and the performance of low energy diets, in this Engormix interview....
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I. INTRODUCTION Soybean meal (SBM) is the most important plant protein source in broiler diets. Although most of the proteins in SBM are highly digestible, some proteins including glycinin, protease inhibitors, and antigenic proteins are indigestible and can cause intestinal damage and impair immune functions resulting in sub-optimal growth performance (Pan et al., 2016). The supplementation of SBM with appropriate commercially available proteases provides a potential strategy to...
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Sudipto Haldar (Research Director at Agrivet) explains changes in the poultry microbiota approach and the effect of certain feed additives, in this Engormix interview....
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Sudipto Haldar (Research Director at Agrivet) comments on the time it takes for phytogenics to work and how they impact the poultry microbiota, in this Engormix interview....
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Is there table of limet use of ingridents for poultry and large animals Thankss Dr. Abdelkader...
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Dear Sir We are one of the leading importers and distributors of Feed Ingredients in Israel. We will be pleased to receive info about Choline Chloride replacement- data sheet cost cnf Ashdod port Israel Regards tuvi@sorpol.com ...
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Introduction In developing countries, the poultry industry is experiencing some critical issues with animal feed prices, which are unpredictable in the current scenario, as raw ingredients, primarily corn and soybean, have been increasing in price day by day (Alagawany and Attia 2015). As a result, there is a need to consider some low-cost resources, such as agricultural by-products and other crops, which are significantly less expensive than conventional feed stuff. As a result,...
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Introduction Creatine (essential for energy metabolism) and glutathione (GSH; an important non-enzymatic antioxidant) are major metabolites of glycine [the simplest amino acid (AA)] in animals (Fig. 1). Specifically, arginine:glycine amidinotransferase (AGAT) and guanidinoacetate N-methyltransferase (GAMT) convert glycine into creatine in the presence of arginine and methionine, whereas γ-glutamylcysteine synthetase and glutathione synthetase catalyze the formation of GSH...
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4.1 Introduction The metabolism of most nutrients in domestic dogs and cats is similar to that in other mammals (Baker and Czarnecki-Maulden 1991). Thus, the qualitative dietary requirements of dogs and cats for most nutrients [e.g., amino acids (AAs) that are not formed de novo in animal cells] are similar to those for omnivores (e.g., humans and pigs). However, dogs and cats have a relatively short digestive tract (He et al. 2024) and have evolved to have some unique feeding...
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1. Introduction Increased atmospheric emissions of greenhouse gases (GHGs), such as nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and methane (CH 4 ), are the primary cause of climate change. These emissions result in unpredictable and erratic rainfall, floods, and droughts [1]. In 2020, agriculture contributed 5865.47 MtCO 2 e, representing 12.34% of its total emissions (47,513.15 MtCO 2 e), including land-use change and forestry...
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Additives are part of the strategies for adding value to food, and their interest, in the current context of raw material prices, is even more evident. Nevertheless, there is a tendency to simplify their action to stick to the primary logic of their nature and easily generate an economic advantage. In doing so, we are likely to limit ourselves by failing to fully consider the scope of their work. In the case of the increasingly popular proteases, this involves a "simple" recovery of the...
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