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During the process of digestion and absorption of ingested feed in poultry, significant losses of endogenous amino acids (EAA) occur from various digestive secretions, mucoproteins and the epithelial cells lining the gastrointestinal tract (GIT). Several factors such as the development of GIT and changes in dry matter intake (DMI) with advancing age, type of bird, method of euthanasia and ileal di ...
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1. IntroductionOften a seemingly straightforward aspect of nutrition reveals itself to be, upon closer inspection, not so simple after all. An illustration of such a conundrum is the nutrition of the newly hatched broiler chick. Conceptualizing the different challenges faced by the hatchling and solving them should be remarkably simple, but the difficulty lies in the complexity in the development ...
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BackgroundInvestigations 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 f ...
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No common feedstuff is 100% digested. In practice, 10-15% are excreted in faeces without bringing any means to bird requirement and in addition cause potential anti-nutritional effects. Thus, there is no doubt poultry benefits the most from use of exogenous enzymes and is becoming a norm to utilize the undigested parts and to overcome the adverse effects as well. However, the biological reality is ...
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Just reacting to the original question (do phytases always work in poultry nutrition). Clearly this depends on how you define 'work' i.e. what the expectations you have of the phytase. It would be possible, for example, to manufacture a situation where the efficacy of the added phytase looked very poor e.g. if the diet to which you add the phytase has a high concentration of digestible phosphorus ...
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The effect of phytase in poultry nutrition will depend on the amount of available phosphorus in the diet of the poultry. Phytase is meant to break down the phytate into phosphorus and myoinnositol. The efficacy of phytase in poultry nutrition will depend on the presence of phytate in the feed. Several experiments have shown the efficacy of phytase in reducing the amount of feacal phytate as well a ...
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Annafe Perino, Product Manager, Novus International Southeast Asia & Pacific, explains why protein is good but also problematic, and the benefits of using a protease enzyme (CIBENZA DP100) in young animals to improve gut health
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It should be noted that betaine is a direct methyl donor and choline in the process of producing betaine produces a by-product called acetylcholine. Acetylcholine causes a feeling of tiredness. Excretion of acetylcholine is done with the help of arginine, and the combination of arginine and acetylcholine and excretion of acetylcholine reduces arginine. Arginine deficiency means reduced immunity an ...
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Dr. Piotr Stanislawski shares his experience with Engormix members on usual mistakes that he has encountered throughout his career.
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Akbar Yaghobfarf feed enzymes are exogenous and they work with/ on proper substrate eg xylanase works with xylans ( substrate) included in feed components Cutting xylans they open the „ door” for endogenous enzymes ( eg amylase or protease) Birds don’t have enough (eg Phytase) or not producing such enzymes at all. So, exogenous and endogenous enzymes cooperate in digestive process. Without exogen ...
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