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Participation in Forum on February 26, 2020
To Drs Andreas and Mike, for the experience and professional competence of the authors, I have no doubt that the restrictions we made on the article are fully known to you. What really happened was a carelessness in the preparation of the matter, which can occur with any .
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Participation in Forum on February 25, 2020
Dr Mike, I forgot to point out that due to carelessness, I am absolutely sure, the use of the isomer D of lysine in the feed of the birds was mentioned, which certainly did not occur. This is because, as you know, lysine in this isomer is not used by birds. Even methionine, I believe it must have been used as a mixture of D and L (DL) isomers. Carelessness like this happens quite often.
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Participation in Forum on February 25, 2020
Dr. Mike, I appreciate your prompt reply. In this case, the tryptophan requirement must be established in grams/day, making no reference to its relationship with lysine. Do I think correctly?
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Participation in Forum on February 24, 2020
Dr. Kazem, according to some information in the literature, the increase in energy demand to meet the animals' immune response to the challenge is not very significant and does not need, in principle, alteration.
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Participation in Forum on February 21, 2020
Dr Mike, for a better understanding of the work, I would like to ask you to kindly inform us what was the relationship between methionine + digestible cystine with the digestible lysine used in your diet to assess the level of tryptophan. With my thanks
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Participation in Forum on February 20, 2020
Dr. Alemu, I think your considerations are consistent with those we did earlier. This consistency is more evident in his report that, in conditions of low health challenge, it is feasible to use diets with a lower level of crude protein. The reason for adopting this practice would be precisely related to the fact that healthy animals have less demand for non-amino acids. essential and that the rel ...
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Participation in Forum on February 20, 2020
Dr Alemu, I clarify that I referred to sulfur-containing amino acids, such as methionine and cystine.
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Participation in Forum on February 19, 2020
Dr. Martin, congratulations on the excellent article. As I am in a tropical country, Brazil, I think I lacked information about the limitations of increasing the level of fiber in pig diets during the hot season of the year. In this sense, we have to consider two main factors. the increase in the caloric increment (CI) of the animals' rations and digestive tract. With regard to this last factor, t ...
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Participation in Forum on February 15, 2020
Dr. Edgar, considering the proposed treatments, it did not seem clear to me, how the treatments were implemented from 16 weeks up to 5% of egg production. As the level of lysine in a breeding period can influence the subsequent period, it seems important to me to define the criteria used in the distribution of birds in the treatments in this second evaluation phase. Was it flat? That is, birds tha ...
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Participation in Forum on February 14, 2020
Dr. Cristiano, we congratulate the team involved in preparing the article, considering the information contained therein. I would like to take the opportunity of the material presented, to make some considerations regarding the implications of the practice of reducing crude protein (CP) in diets for pigs and poultry. First; - it became evident that the demand for essential amino acids, such as thr ...
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Information
Location:Vicosa, Minas Gerais, Brazil
Profile: Academic / scientific
Occupation: Professor / Universidade Federal Viçosa