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The response of broilers during three periods of growth to dietary valine
(2016-04-01)
In diets based on corn and soybean meal valine is considered the fourth limiting amino acid. Despite that, there have been few studies to date on the response of broilers to dietary valine and most of them use empirical ...
Motifs in the C-terminal region of the Penicillium chrysogenum ACV synthetase are essential for valine epimerization and processivity of tripeptide formation
(2012)
The first step in the penicillin biosynthetic pathway is the non-ribosomal condensation of l-α-aminoadipic acid, l-cysteine and l-valine into the tripeptide δ-(l-α-aminoadipyl)-l-cysteinyl-d-valine (ACV). This reaction is ...
Maintenance valine, isoleucine, and tryptophan requirements for poultry
(Oxford Univ Press, 2016-04-01)
Poultry maintenance requirements for valine, isoleucine, and tryptophan were measured by nitrogen balance using different unit systems. The nitrogen balance trial lasted 5 d with 48 h of fasting (with roosters receiving ...
Estudio de los factores que afectan las tasas de evolución nucleotídica con especial énfasis en las posiciones sinónimas
(Udelar. FC., 1999)
Los factores que gobiernan el cambio nucleotídico a escala evolutiva lejos de encontrarse dilucidados constituyen uno de los puntos que ha concitado mayor controversia en el área de la genética evolutiva. Se analizó las ...