Guoyao Wu likes the comment:
I should like also to comment from Dr. Marchenkov regarding "vegetable methionine". As Dr. Wu correctly states, methionine is methionine; an amino acid with a clearly defined structure INDEPENDENT of the source. I have seen numerous products claiming to be "Herbal methionine" and these materials are not methionine, and do not contribute methionine. When used in correctly balanced and formulated di ...
Participation in Forum on January 6, 2023
Dr. Fiodor S. Marchenkov Many of those so-called nutritionally nonessential amino acids (NEAAs) are potent regulators of gene expression and metabolism in animals. Glutamine is a great example. Some NEAAs are the major metabolic fuels for enterocytes of the small intestine in a species-specific manner to support the intestinal integrity and function. There should be not such a thing as vegetable m ...
Guoyao Wu likes the comment:
But animals can improve the ratio of amino acids and make this ratio closer to the theoretical model of an ideal protein using biochemical reactions for the synthesis of the desired amino acids, the degradation of unnecessary amino acids, and the transamination of amino acids. This requires specific conditions and cofactors, for example, coenzymes, electron donors and acceptors, necessary trace el ...
Participation in Forum on December 30, 2022
Dr. Fiodor S. Marchenkov Do you want your animals to produce ammonia and oxidants from so-called “nutritionally essential amino acids (EAAs)” and at the expense of a large amount of dietary energy, so as to provide other insufficient proteinogenic amino acids. Do you want to waste EAAs if you have a choice to avoid it through careful considerations in dietary formulation? Do you know that the body ...
Article published the December 6, 2022
IntroductionThe major goal of the swine industry is to minimize neonatal mortality and improve weaning weights of neonatal pigs because their adaptability to weaning and their rates of growth to market weight are positively affected by weaning weight [1]. The total net profit of a swine production unit is primarily determined by both the number and size of piglets produced per year per sow [2]. Re ...
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Participation in Forum on December 5, 2022
Nutritionists should pay attention to both EAAs and so-called NEAAs in diets to maximize economic returns in animal production. The ratio of NEAAs to EAAs in the body of animals (eg, pigs and chickens) is 60:40. We should not ignore the more abundant group of amino acids in animal nutrition and feeding.
Participation in Forum on November 24, 2022
George Entz Glycine is the simplest in nature and the most abundant amino acid in animals, including poultry. To my knowledge, glycine is among the cheapest amino acids that are available commercially and its price can be as low as US $1/kg based on the publicly available website. Glycine is also among the metabolically most diverse amino acids in animal nutrition. I discussed the optimum levels o ...
Guoyao Wu likes the comment:
Thanks to the authors for an interesting publication, but I think that the practical priority in the matter belongs to the research center of Danisco AS. 25 years ago they formulated the working concept "Sunflower + Enzyme = Soy". The employees of my company supported this idea, because in Ukraine (the number 1 country in the world in the production of sunflower oil and sunflower meal), the cost o ...
Participation in Forum on November 20, 2022
Dr. Fiodor S. Marchenkov Thanks the comments in the use of sunflower meal in poultry diets. Did the addition of amino acids other than lysine, such as glycine and proline, improve the growth performance and health of chickens? Lysine is an important amino acid in nutrition, but perhaps other amino acids should also be considered to maximize the use and benefits of sunflower meal in poultry diets. ...
Participation in Forum on October 4, 2022
Juarez Donzele Thanks for sharing your nice data and insights with us. I think that the "Ideal Protein" concept was ideal when we knew little about cell- and tissue-specific metabolism of amino acids in animals or the needs of animals. Now we should move beyond the "Ideal Protein" concept so as to optimize amino acid nutrition in animals and to improve their health and well-being.
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