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Fábio Goldflus likes the comment:
Nelson Ruiz, thanks for the question. There is very significant diversity in proteases, even within specific groups like the serine endopeptidases, so I cannot comment on behalf of all 'trypsin-like' or 'chymotrypsin-like' proteases. However, in the case of both ProAct and ProAct 360 we have extensively tested their vulnerability to such inhibition and found them to be unaffected by Kunitz or Bowm ...
Fábio Goldflus likes the comment:
Nowadays feed ingredients prices are constantly increasing, also protein and energy in feed/food have become expensive nutrients. Major challenge for nutritionist is to formulate highly performing feed with low price. People are also more concern impact of animal agriculture on environmental pollution. Using of exogenous enzymes in feed has been ongoing. Phytase enzyme is well known to maximum pou ...
Fábio Goldflus likes the comment:
Great points! Matrix values of enzymes should be used cautiously as they might not always be accurate. Different factors such as birds’ age, dietary antinutrients, disease, and environmental conditions can affect the efficacy of enzymes in diets. Another concern in using these values is related to enzyme additivity issues. Nutritionists must be careful when reviewing the total matrix applied ...
Fábio Goldflus likes the comment:
Talaat Mostafa El-Sheikh, the manufacturers of the enzyme products, conduct trials to estimate the amount of nutrients the specific enzyme releases, such as energy, phosphorus, amino acids, etc. The matrix values express the difference between Control and the Control + enzyme. It is important to ask the distributor/manufacturer of the given enzyme product how many trials they used to derive the ...
Fábio Goldflus likes the comment:
Guillaume Trepo, message of interest for understanding the matter at hand. However, with regard to the compatibility of the action of the protease with the different carbohydrates, exactly one of the ones that has the greatest action on the soy fiber, mannanase, was missing. The relevance of this detail is related to the fact that the fiber soybean, admittedly, has a negative effect on the swine m ...
Fábio Goldflus likes the comment:
Dear Ospina-Rojas. Thanks for the reply but my doubt is really about the regression generated with this LRP-QR (97.53= 9.069+1.4213x-0.0056*x2) which is presented in fig. 3. With just one value per paper, regressing it against Arg:Lys ratio sounds a bit odd. Not saying it’s necessarily wrong, but considering that both weight gain and Arg:Lys were standardized based on the point of maximum response ...
Fábio Goldflus likes the comment:
Luis Fernando Vergamini Luna thanks for your comment. Because the pasty vent will improve the overall feed conversion, as average 6 points, or 0.06, the energy conversion will also be improved in similar proportion. Now the feed conversion due to pasty vent is dependent on the level of fat, meaning more fat in the diet the less effect on feed conversion due to emulsifier. In contrast, the less die ...
Fábio Goldflus likes the comment:
Hiren Pancholi , Thank you for your question. MOS is an indigestible carbohydrate complexed with the Beta-glucans on the yeast cell wall. MOS will agglutinate only bacteria that possess fimbria (like several types of Salmonella and E. coli) and because of it, indirectly modulates the gut microbiota. The Beta-glucans will immunomodulate the innate immune system responses, enhancing the immune sta ...
Fábio Goldflus likes this technical article:
IntroductionThe high cost of inorganic phosphate has influenced the direction of research and the industry to discover alternative sources of phosphorus (P) or improve the availability of P, for broilers. The phytase enzyme has been highlighted in the nutrition of non-ruminants as a tool to reduce the dietary inclusion of inorganic P and to decrease nutrient excretion through the excreta (WALDROUP ...
Fábio Goldflus likes the comment:
In my viewpoint, you need to consider matrix value of Ca as well; otherwise, and as mentioned by others, Ca level in your diets incased that has adverse effect on Phytase. Below I added some considerations regarding Phytase and its matrix value. I hope this would be applicable. Factors affecting phytase activity Mineral contentAlthough doubted in some literature, high level of dietary calcium has ...
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