ABSTRACT Tambaqui (Colossoma macropomum ) is one of the highly produced freshwater fish in Brazilian farming. However, its production efficiency associated with refinement diet formulations limited due to a lack information on nutritional requirements for certain essential amino acids such as valine. This study was designed estimate valine requirement tambaqui having different body weights. A t...

The function of free amino acids in protein synthesis, as a source energy and unique roles catabolism have been well studied plant development but their postharvest fruit vegetables has received little attention. This study evaluated 11 acids—arginine, alanine, aspartic acid, glutamic glycine, ornithine, phenylalanine, serine, tyrosine, tryptophan valine—on the senescence broccoli. Broccoli flo...

Abstract Background Valine and isoleucine are similar in chemical structure their limitation broiler chicken diets. To evaluate interactive effects, multivariate assessment nutrition studies for the branched-chain amino acids (BCAA) needed. A three level (− 1, 0, + 1), three-factor Box-Behnken design study was conducted to assess dietary BCAA ratios lysine of 65, 75, 85 valine, 58, 66, 74 isole...

Evidence published in recent years has shown that the biosynthesis of valine and isoleucine proceeds by a similar sequence of reactions (24). Fig. 1 depicts the reactions considered to be involved. In this report only Reactions II, III, and IV will be considered. Reaction II, the isomerization of the Lu-hydroxy$keto acid (ac-acetolactate for valine biosynthesis and a-aceto-a-hydroxybutyrate for...

Actinomycins normally contain N-methyl-l-valine and either d-valine, d-alloisoleucine or both amino acids in the molecule. During antibiotic formation in a medium supplemented with one of the four isoleucine stereoisomers, Streptomyces parvulus and S. chrysomallus form complex actinomycin mixtures (C(1), C(2), C(3), E(1), and E(2)-like compounds). Although chromatographic techniques suggested t...

The Effect of Adding Different Levels Valine in Low Protein Diets on Performance, Blood Parameters and Tibial Bone Properties Ross-308 Broiler Chickens from 8-21 Days

Glycine, Alanine and Valine are taken as amino acids with an equal polar head and with the difference in the length of hydrocarbon chains. The structural optimizations show the results of the isolated Glycine, Alanine and Valine in the gases phase, at the Hartree-Fock level by means of STO-3G,3-21G, 6-31G and 6-31+G basis sets. The calculations were performed for the ten (1-10) solvents using P...