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INFLUENCIA DE LA SUPLEMENTACIÓN CON SELENITO DE SODIO SOBRE VARIABLES DIGESTIVAS EN CORDEROS
El consumo de selenio inorgánico afecta la fermentación ruminal y el uso de nutrientes, cambiando posiblemente el requerimiento en ovinos en crecimiento. Se utilizaron ocho corderos canulados en rumen y duodeno (43.2 ± 4.7 ...
In guinea pig sperm, aldolase A forms a complex with actin, WAS, and Arp2/3 that plays a role in actin polymerization
Glycolytic enzymes have, in addition to their role in energy production, other functions in the regulation of cellular processes. Aldolase A has been reported to be present in sperm, playing a key role in glycolysis; ...
Possible participation of calmodulin in the decondensation of nuclei isolated from guinea pig spermatozoa
The guinea pig spermatozoid nucleus contains actin, myosin, spectrin and cytokeratin. Also, it has been reported that phalloidin and/or 2,3-butanedione monoxime retard the sperm nuclear decondensation caused by heparin, ...
Protein Fractions and in vitro Fermentation of Protein Feeds for Ruminants
The objective of this study was to evaluate 20 protein feeds grouped in forages, vegetal by- products and animal by-products used for ruminant diets. Protein fractions (PF): A, non-protein nitrogen (NPN); B1, buffer-soluble ...
Physiological uncoupling of mitochondrial oxidative phosphorylation. Studies in different yeast species
Under non-phosphorylating conditions a high proton transmembrane gradient inhibits the rate of oxygen consumption mediated by the mitochondrial respiratory chain (state IV). Slow electron transit leads to production of ...