John Htoo
EVONIK ANIMAL NUTRITION AT A GLANCE Evonik is one of the world’s leading specialty chemicals companies. The central elements of our strategy for sustained value creation are profitable growth, efficiency and values. In 2017 Evonik’s more than 36,000 employees generated sales of &euro...
Participation in Forum on July 20, 2021
Stefano Calamanti Dr. Calamanti, thank you for this interesting comment. The important role of Trp for immune function is more commonly known via its metabolism through kynurenine pathway which is increased under immune challenge (inflammation). I think increased understanding on the complex role or pathway of Trp on improving microbiome (promotes Lactobacillus or reduce susceptibility to E. coli ...
Participation in Forum on April 13, 2021
Dear Dr. Donzele,Thank you for the feedback and additional explanation. Indeed, I fully agree on the merit of adding an additional diet (we can call it as reference or positive control diet) containing Lys at adequate level. For example, we added such positive control diet which contained both Lys and Trp at adequate level in an experiment in Germany to check/make sure Lys was suboptimal in the Tr ...
Participation in Forum on April 13, 2021
Juarez Donzele Dear Dr. Donzele,Thank you for the comment. I can explain the logic for our trial design, setting Lys as suboptimal level in all diets (also for the diet at 15% Trp:Lys ratio), as follows.The requirement of an amino acid (AA), e.g. Trp and Lys, can be estimated on the basis of grams per day. This factorial approach is used in growth model (e.g. NRC, 2021). Another approach, obviousl ...
Article published the March 11, 2021
Distillers dried grains with solubles (DDGS) has a high concentration of Leu, and the Trp requirement for growing pigs may be increased if diets contain excess Leu. Therefore, the objective of this experiment was to determine the optimum standardized ileal digestible (SID) Trp:Lys ratio in growing pigs fed diets with excess Leu from DDGS. A diet based on corn, soybean-meal, and 35% DDGS was f ...
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Article published the March 11, 2021
The objective of this experiment was to determine the effects of dietary crude protein (CP) content and crystalline amino acids (CAA) supplementation patterns on the growth performance of weaned pigs under clean (CSC) or unclean sanitary conditions (USC). One hundred forty-four piglets (6.35 ± 0.63 kg BW) were housed under CSC or USC for 3 wk and assigned to 1 of 3 diets: a high CP (HCP; 21 ...
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Article published the March 11, 2021
Functional amino acid supplementation during disease challenge enhances growth performance and immune status. The present study investigated the effect of duration of adaptation period to a functional amino acid (FAA)-supplemented diet on growth performance and immune status during a subsequent Salmonella challenge in pigs. Thirty-two mixed-sex weanling pigs (8 pigs/treatment; 11.6 ± 0.34 k ...
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Article published the February 27, 2021
The intestinal morphology can be compromised in pigs when exposed to heat stress (HS), partly due to increased production of reactive-oxygen species. Because methionine (Met) functions as intracellular antioxidant, requirement of Met may be increased in HS-pigs. The effect of dietary supplementation with DL-Met above requirement on performance and serum concentration (SC) of free AA in HS-pigs was ...
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Participation in Forum on July 15, 2020
Vargas Alejandro Thank you for the good comment. Composting of manure (necromass) as biosolids to produce an organic fertilizer (or for producing biogas) a sustainable way to minimize the N excretion to the environment. As you mentioned, lowering CP level in weaned pigs diets in combination with gut health promoting additives is a strategy to improve gut barrier function and control post-weaning d ...
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Location:Hanau, Hessen, Germany
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