Article published the June 7, 2023
IntroductionSince the major part of costs in poultry production is related to feed, minimizing this part of the costs which depends on feed ingredients is very important. On the other hand, phosphorous is usually one of the expensive nutrients in poultry feed. Therefore, the amount of nutrients in feed ingredients, especially available phosphorus, has a very important role in lowering the cost of ...
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Mike Kogut (USDA-ARS) talked about nutrition, intestinal immunity, microbiome and dysbiosis, among other subjects, during the Latin American Poultry Congress in Lima, Peru.
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Hello all,From the point of view of enzyme activities, the standard measure is how many moles of the product (the result of the chemical reaction) is released by a specific amount of the enzyme during a specific time and pH conditions. Although I am a biotechnologist I have worked in the animal industry and know that information does not translate well with industrial enzyme users. However, in the ...
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Emmanuel Nwaotule what do you specifically do to minimise the effect of nutrient variability on animal performance? Nutrient variability in most feed ingredients varies a lot and if you just use table values you are certainly risking to reduce animal performance significantly. It is a big challenge to obtain exact information about the batch of raw material you are using for the feed. For example, ...
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Regrettably, intra-population variability is an intrinsic property of all living things, including both the sources of feed ingredients, and the responses of animals to blends of them. If the ultimate target of the nutritionist is to optimise performance while minimising variability in the animal populatioin at slaughter, understanding the causes of the variation in both ingredients and animal res ...
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Over last decade enzymes have become more and more prominent from standard to super dosing to double dosing reasons could be two either the substrate is higher or efficacy of enzyme is lower. Current recommendations to first calculate all anti nutrition factors and make a cocktail enzyme mic to get synergistic effect. What is the ideal PH it is up to 6.5 and optimum temp? In areas where drinking w ...
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For sure enzyme responses are non-linear but in the range, we test them in animal nutrition they occasionally appear linear. I think it is crucial to also examine available/reactive substrate concentration when interpreting enzyme response. Systems may be saturated with the substrate in which case enzyme responses may be exaggerated across a wide range of inclusion concentrations, or they may be s ...
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I think everyone in this discussion made good comments. It seems to me that all that is needed is an underlying theory to fit all the various pieces into. This is the same for phytase and all the other enzymes: First, it should be accepted that responses to enzymes follow Michaelis-Menten kinetics. Enzymes do not give linear responses. This was very nicely illustrated by Shirley and Edwards, Jr. ( ...
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Ryan Arsenault (University of Delaware) explains the benefits of using postbiotics in poultry intestinal health, during the 8th Symposium on Gut Health in Production of Food Animals in St. Louis, USA.
Article published the December 3, 2018
IntroductionThe first days of life are very critical for gastrointestinal (GI) maturation and immunity development, especially for high yield breeds. However, in commercial hatchery practice the birds within this period exposures for many stressors, such as newly hatched chicks remain for up to 36 hours after hatching before they are pulled from hatching cabinet and then it followed by hatchery pr ...