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Baris Bilen YAVUZ likes this technical article:

Calcium Nutrition of Broilers: Current Perspectives and Challenges

1. IntroductionHumphry Davy, a British chemist, was the first to isolate and investigate the chemistry of calcium (Ca) and to recognise it as an essential component of bone in 1808. Ever since, it has been the subject of a voluminous amount of research in both human and animal nutrition. Today, the biological significance and economic importance of Ca in animals are intuitive. Calcium is the most ...
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Role of Betaine as a Methyl Group Donor
We have extensively researched the relationship between betaine methionine and choline and at normal usage levels cannot recommended any sparing effect of betaine. However, it does aid in maintaining intestinal integrity and some studies have shown increased breast meat yield.
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A critical review of methods used to determine phosphorus and digestible amino acid matrices when using phytase in poultry and pig diets

IntroductionIn 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 u ...
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Using Phytase Matrix Value with the LCF
A couple of quick remarks on this topic. When phytic acid is hydrolysed by phytase and the mucosal phosphatases in the intestine the only two direct products of this are myo-inositol and phosphate. We have measured the appearance of both of these in multiple experiments and this is clear evidence of phytase efficacy and its compatibility with endogenous phosphatases in the intestine. All additiona ...
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How matrix value of enzymes calculated?
Matrix values describes the amount of additional nutrients that are released when you add the enzyme. If you study the matrix values for a phytase product you will notice that the manufacturer claims that his product releases xx g of dig. P per kg. feed or is equivalent to adding xx g of DCP/MCP to the feed. If you are studying the matrix values for carbohydrases you will typically notice that the ...
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Performance of Broilers Fed Diets with High and Low Net Energy but Similar Metabolisable Energy

I. INTRODUCTIONThe most important cost component of broiler feed relates to energy, as this may account for up to 75% of feed costs (van der Klis & Kwakernaak, 2008). Therefore, more accurate evaluation of feed energy in broiler production is imperative for environmental and financial reasons. The metabolisable energy (ME) system is currently the preferred measure for determining energy utilis ...
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Using Phytase Matrix Value with the LCF
Aaron Cowieson Ha ha! :-) He did at least put in a reference to you.
Baris Bilen YAVUZ likes the comment:
Using Phytase Matrix Value with the LCF
Ali Afsar I recognize quite a bit of that text...
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Homogeneity of additives in the feed
Marc,In my opinion a CV = 10% is no good enough. It means that the additive is present in the feed at plus or minus 20% of the average intended dose. I don't think this is acceptable, at least for poultry.A CV = 5% means that the distribution of the product is between plus or minus 10% of the average; this is what I consider a satisfactory distribution for an additive.
Baris Bilen YAVUZ likes the comment:
Homogeneity of additives in the feed
Dear Ricardo Hume Thank you for your comment and your interest in this video.In order to avoid any misunderstanding regarding the interpretation of the CV, let me clarify that, considering a normal distribution of the additive in a batch of feed (Gauss curve), a coefficient of variation (standard deviation/mean value) of 10% means that 68% of the mass of the batch contains between 90 and 110% of t ...
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