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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.
What if we can enrich the embryo already with a quickly available energy source to better secure hatching and the first days in the life? This is possible by feeding the broiler breeder hen with a source of creatine. Creatine might ring a bell to many, as taking creatine as a supplement is very popular among athletes to gain muscle, enhance strength and improve exercise performance. Creatine gives muscle cells the capacity to produce more energy by recycling energy poor...
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It could be argued that animal nutrition as a global industry really kicked off when the idea of selling supplements to better balance out the nutritional values of feedstuffs began. Clearly, it was a landmark...
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Introduction In practice, an optimisation program is used to formulate commercial diets to meet the minimum nutrient constraints in order to minimise feed costs. With phytase, potentially unjustifiable high contributions will result in reduction of safety margins or even lead to nutrient and energy deficiencies with a negative impact on animal performance. When applying values, it is important to understand that it is not possible to compare matrices from different phytases...
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Ph.D. José Rivera Ulloa, Technical Sales Manager – LATAM at Alzchem, points out the role of Creatine and its role in animal Nutrition, some benefits of Creamino® in poultry nutrition and more......
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Srinivasa Farms and Hy-Line: Pioneering Growth in India’s Poultry Market
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Poultry feed contains major ingredient i.e., soybean meal as the principal source of protein. Soybean meal is the dominant protein supplement used in poultry diets & also has an excellent amino acid profile the primary protein source in poultry diets. In recent years most producers are looking for alternate protein sources of soybean due to skyrocketing of the commodity. There are some alternative protein sources which have been used by poultry/feed producers as a...
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Introduction Modern meat chicken breeding stock have been selected for extremely efficient conversion of feed into protein and rapid growth. As a result, it has become increasingly more difficult to rear pullets and breeders to achieve the healthy chick numbers needed to supply the ever-expanding poultry meat market. There are many factors involved in producing a healthy pullet and breeder chicken. These include; housing, lighting, temperature and air control, health,...
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Adisseo several studies have shown that the addition of a liquid source of methionine (OH-Methionine) may lead to power savings of up to 13% compared to the powder form (DL-Methionine) when pelleting. This conclusion on the beneficial impact of liquid methionine was obtained in two trials conducted in TECALIMAN, the French technical center for Feed, in their pilot pellet mill (2016 and 2020). Theses tests assess the pelleting behavior of complete feed by varying formula and...
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Introduction Genetic companies using new advances in genetic engineering are working to achieve high-persistence brown and white egg layer hybrids capable of producing more than 500 eggs in a 100-week lay and molt-free period. 1-The quality of the shell is the main reason for a producer to discard a flock of layer. 2-The posture drop is the second. - The most important nutritional strategy is bone health during rearing and all production through the...
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Introduction Sorghum ranks fifth in global cereal production after corn, wheat, rice and barley. Most of the world’s sorghum grain is fed to animals, including poultry, but it is also used for food (Africa) and alcohol (ethanol, beer in Africa and baijiu in China). World sorghum production for the last 5 years averaged about 63 million metric tonne (Mmt), the USA being the largest producer (about 12 Mmt or 18% of world production). Australian production averaged...
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INTRODUCTION Tryptophan (Trp) is an essential amino acid and third limiting in typical commercial corn-soybean diets for white egg-laying hens (Russell and Harms, 1999). Tryptophan is primarily used for protein synthesis to maintain egg production but also plays a role as a precursor of serotonin which is synthesized to melatonin to regulate sleep, appetite, and stress responses. In addition, Trp can be converted to the B-vitamin niacin through the kynurenine pathway (Rogers and...
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Introduction Wheat and barley as alternative cereals can be successfully replaced with corn in poultry diets. These grains could locally grow in many areas of the world and have lower water requirements than corn (Ravindran et al. 1999; Lin et al . 2010). The major components of wheat and barley are starch and proteins, though they have considerable content of non-starch polysaccharides (NSP), derived from the cell walls (Olukosi et al . 2007;...
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Introduction Endogenous protein loss, which links the gut physiology and protein nutrition, has proved to be an alluring subject of research for many years. Historically, the presence of undigested substances of digestive tract origin in the excretory products of animals and its relevance to the biological value of protein has long been known [1–3]. In poultry, the earliest work on the use of nitrogen-free diets was by Ackerson et al. [4] to study the variation in nitrogen...
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AMINODat® 6.0 The most extensive web-based database for animal nutritionists
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INTRODUCTION Variability in the nutritional value of feed ingredients for poultry (and indeed other livestock species) has been widely reported over several decades and has been the impetus behind a sustained body of research work. For example, Sibbald and Slinger (1962), Mollah et al. (1983), and Leeson et al. (1993) reported variation in the apparent metabolizable energy (AME) content of corn (3,476–3,960 kcal/kg dry matter [DM]), wheat (2,948–3,960 kcal/kg DM),...
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INTRODUCTION Studies from humans and rats have showed the intestinal epithelium represents the largest area of exposure of the body to external pathogens and toxins (Abreu, 2010; Slack et al., 2012). The secretory immune system, including secretory IgA (sIgA) and the mucus, serves as the first line of defense to limit epithelial contact with pathogenic microorganisms and other potentially dangerous antigens (Abreu, 2010; Slack et al., 2012; Zhang et al., 2015). Immunoglobulin A...
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1. Introduction The modern broiler chickens are always vulnerable to impaired nutrient digestion, dysbacteriosis, cocci challenges, and exposure to Clostridium perfringens resulting in poor gut health and production performance. Previously, endogenous proteases were deemed to be sufficient for feed protein digestion [1, 2] despite the possibility of a considerable amount of undigested dietary protein reaching the hind gut [3-6]. Apajalahti and Vienola [7] are of the opinion that...
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Background Investigations in reducing dietary crude protein (CP) in chickens began in the early 1940’s, which commenced nearly a century of exploration in this area of poultry nutrition research. Advances have been made, but many of the hurdles identified in the 1940’s vex poultry nutrition researchers today. Most notably, in the early 1940’s research was carried out in chickens fed various diets substituted with ingredients differing in protein and energy...
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Introduction Animal-source feedstuffs are generally superior to plant-source ones for the growth and health of livestock, poultry, and fish (Wu 2018). This is due, in part, to the greater quantity of proteinogenic amino acids (AAs) and higher quality (the ratios and digestibilities of AAs) of the former than the latter. Traditionally, extensive research has focused on AAs that are not synthesized by animal cells and are known as nutritionally essential AAs (EAAs), including...
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Ben Letor, Director of Innovad, introduces Vitalite Energy Chick, during VIV Asia 2017, in Thailand. This is a unique form and texture encourage intake from young birds. An innovative gel technology for on farm use – Nutritional and rehydration supplement for day old chicks. It is a booster that offers different protective and active ingredients to ensure a proper intestinal start-up....
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